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해당 분해도는 수리 안내서가 아닙니다. MiJia QiCycle Folding Electric Bike 수리는 저희 서비스 설명서를 사용하십시오.

  1. Xiaomi MiJia QiCycle E-Faltrad Teardown, Xiaomi MiJia QiCycle E-Faltrad Teardown: 1 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown, Xiaomi MiJia QiCycle E-Faltrad Teardown: 1 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown, Xiaomi MiJia QiCycle E-Faltrad Teardown: 1 단계, 이미지 3/3
    • Werfen wir einen Blick auf unseren kleinen mobilen Freund. Ziemlich stylisches Äußeres. Wir schauen kurz auf die Spezifikationen:

    • 250 W, 36 V Hochgeschwindigkeitsmotor M108RL von Ananda

    • 0,21 kWh Akku (mit 20 NCR18650PF Lithiumbatterie-Zellen)

    • 45 km Reichweite mit einmaligem Aufladen

    • Shimano Nexus 3-Gangnabe

    • Drehmomentsensor justiert Schubkraft in Abhängigkeit von Trittgeschwindigkeit

    • Bordcomputer mit Steuereinheit, um Echtzeitwerte wie Geschwindigkeit, Entfernung und Energie bereitzustellen

    Für Europa mit nur 75kg Traglast nicht zu verkaufen.

    Gerhard Hallermayer - 답글

    One question please ananda hub is rated at 30 nm torque while xiaomi says only 7.3nm …any suggestions?

    rott74 - 답글

    Se non si accende il computer di bordo ma la batteria è carica cosa si fa?

    pamarotta - 답글

    • Bevor wir hier loslegen – haben wir eigentlich erwähnt, dass dieses Teil faltbar ist?

    • In ein paar einfachen Schritten lässt sich das Rad von Abfahrbereit zu Kompakter Größe für den Transport zusammenklappen.

    • Selbst mit dem Nabenmotor wiegt das QiCycle gerade mal 14,5 kg. Das entspricht ungefähr zwei Dackeln oder drei Katzen.

  2. Xiaomi MiJia QiCycle E-Faltrad Teardown: 3 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 3 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 3 단계, 이미지 3/3
    • Für diejenigen unter euch, die nicht mit elektrischen Klapp- oder Falträdern vertraut sind, gibt es hier noch das klassische – aber analoge – Brompton Rad zum Vergleich. (Etwas großflächiger als unsere gewöhnlichen Vergleiche).

    • Das QiCycle hat einen kürzeren Radstand (870 mm) mit etwas kleineren Reifen (16"). Auch der nicht-verstellbare Lenker und der Sattel erreichen schneller ihre Maximalhöhe (schlechte Nachricht für Fahrer über 1,70 m).

    • Der eingebaute Radcomputer kann zwischen vier Powerstufen wechseln und zeigt Echtzeitdaten zur Fahrt an (die Smartphone-App liefert noch mal tonnenweise Informationen).

    I bought one of this but how can i change LCD language from chinese to english?

    parhamsameni - 답글

    Stessa domanda come si aggiorna a inflese

    . Dolcclod - 답글

  3. Xiaomi MiJia QiCycle E-Faltrad Teardown: 4 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 4 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 4 단계, 이미지 3/3
    • Genug geredet, lasst uns das Ding zerlegen! Wir starten am Sattel, welcher am Einfachsten zu entfernen ist: Zwei Schnellspanner umlegen und schon ist das gute Stück frei!

    • Die Sattelstange hält die Hinterradschwinge an ihrem Platz. Sobald sie entfernt wird, lässt sich das Rad klappen.

    • Auf der Stange sind die minimale und die maximale Höheneinstellung markiert und sie hat an ihrer Rückseite eine Rille. Diese hilft, die Sattelstange auszurichten und zu verhindern, dass sie sich verdreht – jedes Rad sollte eine haben!

    • Als nächstes werden die schicken Faltpedale abgeschraubt. Dadurch wird das Rad im geklappten Zustand schmaler.

    • Brompton Räder haben schon seit einer Weile (noch schickere) Faltpedale. Möglicherweise hat sich Xiaomi davon etwas inspirieren lassen.

    What size seatpost clamp does the Qicycle use? Thanks.

    killyrbf - 답글

    What are the dimensions of the seat post? Also, can it be replaced with one with suspension? If so, what brands/models do you recommend?

    Alberto Einstein - 답글

    Hi Alberto, I have a Dahon 33.9 Thud buster long travel seat post from my Dahon jetstream folding bike, the Qicycle also has seat post size 33.9. When I tried the Thud buster on my Qi cycle I ran into a problem with metal shims inside the Qi cycle seatpost keeping the Thud buster from sliding in unfortunately. Hope this helps.

    Colin Young - 답글

  4. Xiaomi MiJia QiCycle E-Faltrad Teardown: 5 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 5 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 5 단계, 이미지 3/3
    • Die Kette läuft um die Hinterradschwinge und hat einen praktischen Kettenspanner, der das Entfernen sehr vereinfacht.

    • Der Kettenkranz hat 52 Zähne, wogegen die Hinternabe nur 14 aufweist. Dies ergibt im ersten Gang ein Verhältnis von 1:2,7 im Zweiten ein Verhältnis von 1:3,7 und 1:5 im Dritten.

    • Die Kette selbst verfügt über 96 Glieder. Es gibt kein Hauptglied, welches zum Öffnen der Kette dient, jedoch kann ein gewöhnliches Kettenwerkzeug die Kette an jedem Glied öffnen.

    So the chain is a single speed Narrow (3/32) or Wide (1/8)?

    Thanx

    Michele

    fotoreporter_86 - 답글

    Chain is wide and I think the chain line is not right. The chain makes a noise not unlike poorly adjusted derailleur transmission. The cog appears to be Y32203200 and seems to me the only reason to use a wide chain. It is deeply dished to get clearance from the hub and moves chain out of line with the chainring.

    Pauli Hartala - 답글

    I was mistaken in thinking the wide chain was needed only because of the 14t cog. I think I can get better chain line with 16t nexus sprocket but still have to use that wide chain. Not going very fast by pedaling, but pretty easy to climb even without any assistance.

    Pauli Hartala - 답글

    A co myślicie o zębatce do tylnej piasty 12 zębów...

    Mar Bi - 답글

  5. Xiaomi MiJia QiCycle E-Faltrad Teardown: 6 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 6 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 6 단계, 이미지 3/3
    • Das Entfernen der Kurbelarme erfordert etwas Vorbereitung. Eine Kappe muss entfernt werden, bevor der Kurbelabzieher angesetzt werden kann. Danach lassen sie sich jedoch einfach wie bei jedem anderen Rad abziehen.

    • Das nächste Teil des Puzzles bei der Energieübertragung ist das Tretlager.

    • Erneut benötigen wir ein Standard-Fahrradwerkzeug – das Innenlagerwerkzeug – um dieses Teil der Hardware zu lösen.

    • Diese Werkzeuge hören sich vielleicht ungewöhnlich an, sind aber bei der Fahrradreparatur und -wartung absolut gängig. Gut, dass ihr bei den herkömmlichen Mitteln geblieben seid, Xiaomi!

    can we replace the bottom bracket with standard ceramic bearing bb out there in the market?

    loren.djohari - 답글

    which is the size of the bottom bracket?

    i would like to swap the plastic cheap one for one of better quality.

    kind regards

    abel.esteve - 답글

    from this video, the man replaced it with the

    Central movement FSA RPM 7420 68x118mm

    https://www.youtube.com/watch?v=QHpN-s7v...

    Yolando Siahaya - 답글

    Hey Guys, can someone tell me what is the size of the screws holding the crank? I unfortunately lost the right one and now I have a crank loose, therefore I will not be able to ride the bike until I get a replacement.

    alejandro_masterk - 답글

    The later version has a different bottom bracket. The chain ring is attached to bottom bracket and not the crank arm. I guess it is possibly OEM variant of Ananda bottom bracket S15. It says bbts1sd on a sticker attached to the frame.

    Pauli Hartala - 답글

    Si quelqu'un peut donner les infos après démontage du modèle ef1 ou/et ef2 ce serait top ;-)

    Ynk ēdrd Myr - 답글

  6. Xiaomi MiJia QiCycle E-Faltrad Teardown: 7 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 7 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 7 단계, 이미지 3/3
    • Ein schönes Feature des QiCycles ist die Shimano Nexus 3-Gangnabe. Wir nehmen einfach den Umlenkhebel heraus und entfernen die Schraube, welche in Richtung der Nabe führt.

    • Beim Entfernen der Nabe sollte sich das Rad im dritten Gang befinden. Zur Einstellung der Schaltung ist der Zweite die richtige Wahl.

    • Am anderen Ende des Fahrrads ziehen wir den Gummigriff ab und entfernen den Schaltgriff.

    devo cambiare copertone quindi devo togliere la ruota, in che marcia (rapporto) devo mettere per togliere la ruota dalla bici?

    voi avete scritto in marcia (rapporto) n3 ma nella figura mostrate che sta in marcia (rapporto) n1

    qual’è la maniera corretta per togliere quindi la ruota dalla bici? deve essere inserita la marcia - rapporto 1 o devo inserire la 3 ?

    ed invece se voglio smontare il cambio deve eressero in che marcia (rapporto) ? nella marcia 3?

    se voglio regolare il cambio ho capito che deve essere nella marcia (rapporto) 2

    vaino sereno - 답글

  7. Xiaomi MiJia QiCycle E-Faltrad Teardown: 8 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 8 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 8 단계, 이미지 3/3
    • Das Hinterrad besitzt eine Nabenrollenbremse im Stil einer Trommelbremse. Gebremst wird per Hand, da das Hinterrad einen Freilauf hat.

    • Eine interessante Wahl. Während die Bremse gut vor den Elementen geschützt ist, kann sie bei längeren Abwärtsstrecken schon mal überhitzen und kräftig an Bremskraft verlieren. Auf lange Sicht ist diese Bremse aber nahezu wartungsfrei und benötigt nur ab und an etwas Schmiere.

    • Wir fischen erst mal das Bremskabel heraus. Das scheint aber an diesem Ende fest mit der Nabeneinheit vernietet zu sein.

    • Wir lösen also die Schraube, die die Nabe im Rahmen hält, und heben das 16"-Rad mit seinen 28 Speichen, der 3-Gangnabe, der Rollenbremse und dem daran hängenden Bremskabel heraus...

    Ciao ragazzi, come fare a regolare il freno posteriore?

    Il mio frena troppo poco, devo praticamente tirare del tutto la leva per avere un effetto frenante di un certo livello.

    Grazie!

    matteoparissi - 답글

    Peut-on remplacer ?

    BR-IM31-R 520 grammes d'origine par:

    BR-C3000-R ou

    BR-C3010-R mm +10% de puissance de freinage ou

    BR-C6000-R poids 660 grammes

    Ynk ēdrd Myr - 답글

    The rear brake cable is not riveted to the hub assembly. You just loosen a bolt in the "cable puller" arm of the drum brake and pull out the cable. I was able to replace the cable doing this.

    Pat Diaz - 답글

  8. Xiaomi MiJia QiCycle E-Faltrad Teardown, Geschwindigkeitssensor: 9 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown, Geschwindigkeitssensor: 9 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown, Geschwindigkeitssensor: 9 단계, 이미지 3/3
    • Natürlich würden wir dieses Fahrrad nicht zerlegen wäre es kein smartes Fahrrad. Nun ist es also an der Zeit, den Geschwindigkeitssensor in Augenschein zu nehmen.

    • Das Kabel wird unter dem Sitz verbunden und führt dann entlang des Rahmens zu seinem (modularen) Ausgang.

    • Wir schaffen es, das Kabel herauszufummeln und die Sensoreinheit zu befreien.

    • Das Sensorsystem, welches das Drehmoment der Kurbel des Radfahrers misst, ist entweder das IDbike TMM4 oder etwas sehr Ähnliches.

    The TMM4 sensor is used JUST to measure crank torque and NOT to detect speed that is measured directly from the sensors inside the motor

    diego - 답글

    How we can disable the speed limit?

    Vangelis Evangelou - 답글

    It's imposed by the software.

    The Chinese firmware limits the assist to speeds under 20km/h. The European aids you until you reach 25km/h. An unofficial firmware sets the limit speed up to 29km/h I think.

    JC Fuentes -

    My bike has bb torque sensor of type bbts1sd, I can't find any info on that. Looks like it has external bearings. Bike frame doesn't have any qicycle or mijia decals (only tiny mi decals here and there) and it looks like it was thinly sprayed over with matte black paint. I paid €1000 for it, it's an unused bike with full warranty. Manufactured in 2020.

    Pauli Hartala - 답글

    Bjr erreur 16384 correspond a quel câblages svp

    Hello error 16384 corresponds to which wiring please

    lemmymercier@gmail.com merci thank you

    MERCIER - 답글

  9. Xiaomi MiJia QiCycle E-Faltrad Teardown: 10 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 10 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 10 단계, 이미지 3/3
    • Durch das Herausdrücken der kleinen Leiterplatine kommen wir an die Innereien dieser mysteriösen Messeinheit:

    • Ein 1820A programmierbarer linearer Hall-Effekt-Sensor

    • Dieser macht sich den Hall-Effekt zunutze, um das sich drehende Rad zu verfolgen. Diese Daten werden genutzt, um festzustellen, wie schnell du dich bewegst (und wie sportlich du bist).

    • Das Dreileitersystem ist mit einem einfachen JST-Stecker verbunden, nicht gelötet. Das nennen wir mal modular!

    It does measure rpm but likely not the wheel but rather the sprocket. This piece of data is then combined with the amount of deflection the chain shows. Nothing much on a city bike like this so the sensor needs to be super sensitive so super expensive. Later versions of this bike use cheaper sensor located at the bottom bracket.

    Pauli Hartala - 답글

    Je me demande si le capteur qui se trouve, sur les nouveaux modèles, au niveau du pédalier et qui est relié par une prise à 6 pin, peut aussi être dérivé afin d'utiliser un variateur de vitesse au doigt?

    Y. Meyer - 답글

  10. Xiaomi MiJia QiCycle E-Faltrad Teardown: 11 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 11 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 11 단계, 이미지 3/3
    • Zurück zu etwas mehr Mechanischem. Wir nehmen die Vorderbremse heraus – eine synchronisierte Seitenzugbremse.

    • Mehr Elektronik lässt sich am Vorderrad mit seinem Nabengetriebemotor finden.

    • Wir trennen den Stecker des Nabenmotors vom restlichen Kabelbaum und können endlich das Vorderrad komplett herausnehmen.

    • Alles in allem wiegt das Vorderrad 2,65 kg, was nahezu 20% des Gesamtgewichts ausmacht.

  11. Xiaomi MiJia QiCycle E-Faltrad Teardown, Nabenmotor: 12 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown, Nabenmotor: 12 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown, Nabenmotor: 12 단계, 이미지 3/3
    • Nachdem wir den Deckel abgeschraubt haben, können wir die Quelle der Kreisbewegung heraus drücken. Hinter der Rückabdeckung entdecken wir eine kleine Platine in Form eines schmalen Ringes.

    • Abgesehen von der Stromversorgung regelt die Platine auch die Geschwindigkeit mit ihren drei Sensoren (eine an jeder vierten Spule).

    • 12 Spulen auf dem äußeren Ring schubsen die 10 Magneten auf der Spindel im Kreis herum – 260 Mal pro Minute. Der Motor hat eine Leistung von 180 W und 7,3 Nm Drehmoment.

    • Die drei Zahnräder auf der gegenüberliegenden Seite sind aus Kunststoff, um den Abrieb zu minimieren.

    Ist der Hersteller des Motors bekannt bzw. nach dem Öffnen zu Erkennen ?

    Kann es sein, dass der Motor hergestellt wird von:

    Changzhou Huayu Xinfeng Motor Co.ltd ?

    Joerg Bucher - 답글

    Hallo Joerg, den Hersteller des Motors konnten wir bislang noch nicht herausfinden. Die Aufgedruckte Nummer am Motor gab auch keinen Aufschluss über die genaue Herkunft (MV8536VN2C5AN16GF2648). Huayu Xinfeng Motor Co.ltd stellt einige verschiedene Motoren her, jedoch habe ich auf den ersten Blick diesen Motor nicht darunter entdeckt.

    Tobias Isakeit -

    我想去除电机的耗电和前轮电机产生的摩擦阻力,只使用电池来显示时间、速度以及车灯的使用,这个怎么操作?

    I want to remove the power consumption of the motor and the friction resistance of the front wheel motor. I only use batteries to show time, speed and the use of lights. How does this work?

    MainRoad - 답글

    Please I'm not quite get how to open the hub motor, I've already unscrew 3 screw on the cover lid, still the hub not open, please help.

    Bayu Oktaviantino - 답글

    consigue 3 tornillos de la misma medida, pero mas largos, retiras los tornillos originales, y pones los largos, y haces fuerza en contra de la manecilla del reloj. Si aún asi no puedes, entonces, calca los orificios en una lamina de madera, tres huecos para los tornillos, y un hueco mas grande en el centro, algo asi:

    ______________________________________________________

    _______________________________________________O_____|

    ______________________________________O__( o )________|

    ______________________________________________O______|

    ______________________________________________________|

    john -

    Please I'm not quite get how to open the hub motor, I've already unscrew 3 screw on the cover lid, still the hub not open, please help.

    MainRoad - 답글

    Same problem here, did you manage to open it? because no answer after 2 years….

    Antonio Hernandez -

    Why the planetary gears are plastics?

    Does they transfer the power too?

    Googly Head - 답글

    Hi, when looking at the specs for this motor, it clearly says 30Nm, while i know xiaomi has 7,3 Nm in their spec sheet. I think Xiaomi got it wrong and is under selling the torque http://ananda.com.cn/index.php/wap/produ...

    okstor - 답글

    I suspect the value given by motor manufacturer is when you use a cheap square wave controller. Here Xiaomi has chosen enough computational power to run a much better sine wave controller, resulting however a pretty expensive bike for what it is. Well, it says smart in it's name at least where I live. They make another version in their himo range that comes with bigger wheels or some kind of rear suspension cast wheels and disk brakes. They are likely punchy and noisy just like some people like. And drive like a moped if fitted with a throttle lever.

    Pauli Hartala -

    拆下前轮,拆除侧面的三个螺丝,但那个盖子还是打不开?

    请问是旋开此盖?还是用专用工具拔出此盖?或者通过击打轴的反面顶出此盖?

    请各位赐教

    shdd_zm - 답글

    Would there be a way to decrease or stop the sensors for the speed in the motor in any way ?

    wodan - 답글

    how could I disassembly the front-hub after removing that little three side cover screws?

    Anderson Marques - 답글

    qué referencia son los sensores hall que tiene el motor?

    john - 답글

    Hi, in case we need to replace the plastic gears can we buy them anywhere? or should we make them?

    alejandro_vs8 - 답글

    Who is the engine manufacturer?

    ferosat fer - 답글

  12. Xiaomi MiJia QiCycle E-Faltrad Teardown: 13 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 13 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 13 단계, 이미지 3/3
    • Und hiermit herzlich willkommen zur Mitte des Teardowns.

    • Wir haben das QiCycle von einem Großteil seiner Bauteile befreit. Das verbleibende Aluminiumskelett des Rades wiegt 5,5 kg, was mehr als einem Drittel des Gesamtgewichts entspricht.

    • Wir fahren fort, indem wir den Hauptstecker aus dem Oberrohr ziehen und uns so die Möglichkeit verschaffen, den Kabelbaum zu entfernen, welcher alle elektronischen Bauteile verbindet.

    Does anybody know where to buy this cable? Mine broke and now the bike doesn’t detect when it’s moving.

    Karim - 답글

    The available parts appear to be for the Chinese version with an accelerator lever. Later versions of eu conforming bikes have yet another kind of harness with wires from the brake levers.

    Pauli Hartala -

    Did you found the Eu version of the harness ?

    I have the same problem and can't find the good one.

    Thanks

    Tom Perigaux - 답글

    did anyone find this af of yet? mine broke as well in the eu version

    Menco Niemeijer - 답글

  13. Xiaomi MiJia QiCycle E-Faltrad Teardown: 14 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 14 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 14 단계, 이미지 3/3
    • Lediglich vier Torx Schrauben halten den Fahrradcomputer zusammen. Der 160 × 128 Pixel TFT-Bildschirm ist mit einem einfachen ZIF-Stecker verbunden.

    • Auf der Rückseite der Platine finden wir folgende Chips:

    • MediaTek MT6261A ARM Prozessor

    • Microchip PIC16LF1518-I/MV PIC Controller

    • CSR 1010D A05U Bluetooth Smart IC für die Beleuchtung

    • Texas Instruments TPS259240 eFuse mit Überspannungsschutz

    • Winbond 25Q128FV 128 Mb serieller Flashspeicher

    How to factory reset the trip computer?

    Yen Martinez - 답글

    Same question : How to factory reset the trip computer?

    Because, battery is 100% but computer show 5%, update software failed :-(

    SO no i do not have electrical assistance

    axel ta - 답글

    Ok problem solved with QICYCLE beta software (MC+BMS => ok ; max speed = 30 km/h)

    axel ta -

    Same question, software update failure now MC and BMS show 000-000-00 and i’ve lose electrical assistance

    Clads92 - 답글

    Hi ifixit,

    How did you remove the metal plate that protects the MTK 6261A CPU and the Winbond 25Q128FV CHIP ?

    Best Regards

    JohnDie - 답글

    Carefully ;) but with the help of a side cutter. Removing those shields is not recommended and might effect the function of the chips.

    Tobias Isakeit -

    Ok i took it off :)

    But it's not a chip W25Q128FV on my board..

    It is written 25LQ128CWIG on chip.

    GigaDevice GD25LQ128CWIG

    I have to do a dump jtag.

    JohnDie - il y a 1 heure

    JohnDie - 답글

    行车电脑不能开启,拆开后通过触摸发现“德州仪器TPS259240 eFuse 带过压保护”温度过高(烫手),这一现象只是eFuse的问题?还是其它部件有问题?

    谢谢各位赐教

    shdd_zm - 답글

    Hey !! Take a look at this playlist.

    30 minutes, and you will have your translated QiCycle !!

    https://www.youtube.com/playlist?list=PL...

    Michele - 답글

    Hello I accidentally dropped the bike and the cover of the bike computer is cracked (thankfully the display looks to work fine). Any ideas where I can get a spare accessory for that cover?

    loukis - 답글

    I have a same issue did you find the computer mont?

    Thanks

    ramazan yavuz -

    Still haven’t found a spare part for this. It looks like you could get the whole display from Aliexpress but they don’t sell it any more.

    loukis -

    Same problem for me, just received and the under-cover of that accesory arrived broken..

    Eco Charlie - 답글

    Hi there, I have the same problem, unfortunately the guy that sold me the bike told me that during the shipping the display holder has got damages, now it’s more or less fixed but I would like to change it, without changing the whole thing that is perfectly working…

    Do you know how could I do it?

    matteoparissi - 답글

    A guy in Spain is selling screen protectors.

    His mail: felixfazer@gmail.com

    Xiaomi Qicycle EF1 protector de pantalla

    http://p.wallapop.com/i/335080468?_pid=w...

    Grimor Jander - 답글

    where can i find a new screen or a new bike computer?

    mine is broken.

    thanks

    santos.jacintoeti - 답글

    Hi santos. You might want to check out the additional link (wordpress page) here: MiJia QiCycle Folding Electric Bike

    Tobias Isakeit -

    no display to buy :( thanks

    santos.jacintoeti - 답글

  14. Xiaomi MiJia QiCycle E-Faltrad Teardown: 15 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 15 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 15 단계, 이미지 3/3
    • Wir haben das Beste, oder zumindest das energiegeladenste, bis zum Schluss aufgehoben – das Akkurohr!

    • Mit einem einfachen Knopfdruck und nur einer Hand lässt sich das Rohr entfernen und kann innerhalb von drei Stunden mit der an der Seite liegenden 5-Pin Verbindung aufgeladen werden.

    • Einen ordentlichen Teil des Gesamtgewichts macht der Akku aus – er wiegt 1,46 kg, voll geladen versteht sich ;)

    • Die Akkukapazität beträgt 5800 mAh (208,8 Wh). Belangloser Vergleich des Tages für euch: Das entspricht mehr als 150 iPad Pros 12.9"!

  15. Xiaomi MiJia QiCycle E-Faltrad Teardown: 16 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 16 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 16 단계, 이미지 3/3
    • Wir beginnen damit, das Rücklicht heraus zu drehen. Ein kurzes Kabel hält es grob an seiner Position, gewährt uns aber trotzdem Zugang zu ein paar versteckten Schrauben. Dieser Schritt verschafft uns Zugang zu den innen liegenden Bauteilen.

    • Dieser massive an eine Nabelschnur erinnernde Kabelstrang führt vom Ladeeingang zum Akku und dem BMS (Battery Management System) am anderen Ende des Rohrs, sowie zu einer LED Platine hinter dem Rücklicht.

    • Wir lösen die Platine heraus und stoßen auf ein paar Geheimnisse. Dieses Ding kontrolliert die Anordnung der LEDs auf der Rückseite und ebenso ein paar Status-LEDs auf der Oberseite des Rohrs (vermutlich um die Akkuleistung anzuzeigen).

    I’m having trouble prying out the rear light. It’s pretty stuck in my case. What kind of force should be used? Should I rotate it? Or should I pull it?

    IR Here - 답글

    We used a heavy duty suction cup for a better grip. Try turning it counterclockwise. It sits very tight.

    Tobias Isakeit -

    I had to use a craft/hunters knife to slowly pry it apart then suction cupped it off once loosened

    R E-cycled - 답글

    Could you show the voltage output of pins charger ?

    you - 답글

  16. Xiaomi MiJia QiCycle E-Faltrad Teardown: 17 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 17 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 17 단계, 이미지 3/3
    • Die eigentliche Akku-Kammer entpuppt sich als harte Nuss. Fünf Schrauben (versteckt unter nur schwer zu entfernenden Abdeckungen) sind nicht alles, was dieses Gehäuse zusammenhält.

    • Als wir endlich behutsam mit Hitze und "good vibrations" Erfolg haben, hebeln wir das Gehäuse auf. Dabei zerstören wir diverse Einmalclips an der Innenseite des Rohrs. Schlechte Neuigkeiten für den Austausch einzelner Akkuzellen.

    • Endlich das große Finale: 20 Panasonic NCR18650PF Li-Ion Akkus! Panasonic ist eine gute (und sichere) Marke, demnach sollte das Aufladen ein Kinderspiel sein – im Gegensatz zum Tauschen einzelner Akkuzellen.

    • Das Akku-Pack besitzt ebenfalls eine Akku Management System (BMS) Platine.

    Would it be possible to attach a 42v li-ion battery pack to the charging port to charge the bike’s battery pack ?

    wodan - 답글

    @Wodan: did you manage to do this? I’m interested in this too.

    IR Here - 답글

    Hello, I build and repair Ebike Battery Packs, see ebike-workshop.com, yes it would be possible to charge this Pack using a separate Pack, but proble is:

    - the extra pack supplies too much current, the BMS Charging board would be distroyed or stop this “Super-Charging”, since it is not made for currents above 2-3 Amps. higher Charging currents would also reduce lifetime of the internal 18650 Cells

    What you would need is an additional, external 36v (fused!) batteryPack which is connected directly to the Battery + - and increases the internal capacity like I suggested for M365 E-Scooter on my website. this would be permanently connected and can be charged with the original charger.

    Holger Lang - 답글

    There is a guy who creates a battery shell like the original battery but instead it just leads the + - connectors to the back for easy external battery pack connection. he is on a app called telegram and his name is @esedust contact him if you want to attach larger battery packs.

    wodan - 답글

    Who knows if it's possible to replace the cells with the more capacitive ones?

    Konstantin Huseynov - 답글

    yes it seems possible to change the cells with higher capacity than the original 2900mAH make sure to buy the right format 18650 with at least a Continuous Discharge Rating of 10A. I advise to buy a few more cells to test that all cells are around same (not sure what to check and with what?) .

    What tools or technical works is need to replace the cells once the battery is opened?

    poupou - 답글

    Could you say more about the gentle vibrations?

    I’ve been trying to open the battery without much luck. So far, I managed to split the part near the seatpost. I’ve used all my own force to crack it open without luck.

    Do you have further tips and pointers?

    IR Here - 답글

    So I finally managed to open it by creating a lever to amplify the force to crack it open. To my own surprise, my battery contained Samsung 29E cells. The battery cells were built together very well, with several protection mechanisms in place, including a heat sensor.

    IR Here -

    I’ve stripped out the cells and the BMS. Then I wired a new battery pack directly to the GND and VCC. I’ve done a test ride of 5 km and it’s working well.

    Few notes:

    - backlight doesn’t work anymore

    - the display always shows “low voltage”

    IR Here -

    Hi am trying to replace the original battery with another one . Could you please send me som pictures or provide me with the controller diagram pins that goes to the battery since the battery have only red + and black- and the controller have 5 pins coming. I would be really thankful if you can help and send the a picture or explain how to connect the battery. Here is my mail: robotiger@gmail.com

    Roberto - 답글

  17. Xiaomi MiJia QiCycle E-Faltrad Teardown, Akku Management System: 18 단계, 이미지 1/2 Xiaomi MiJia QiCycle E-Faltrad Teardown, Akku Management System: 18 단계, 이미지 2/2
    • Die Platine ist beladen mit Widerständen. Diese Teile stechen besonders heraus:

    • Ein Akku ATMEL MEGA 328P Management MCU

    • S11428 33TVF

    • FL12.000 12 MHz Quartzoszillator

    • Auf der Rückseite finden wir Folgendes:

    • Magnachip MDU1931 n-channel MOSFET (4 mal)

    • RS2M Gleichrichter

    interessant wäre ob das BMS beim Zellentausch abschaltet, oder diese Möglich ist, um z-Bsp Leistungsfähigere Zellen einzubauen, wie ich es unter www.ebike-workshop.com mache: 3500maH Samsung, dann hätte der Akku 7aH.

    Holger Lang - 답글

    I made a tutorial for Changing a Custom Boot Logo for Qicycle :

    https://youtu.be/emMwQ-Tpyqk

    Grimor Jander - 답글

    Alguien sabría decirme donde se encuentra el sensor de temperatura en la placa bms? mi cargador no carga y creo que puede ser por un fallo entre la batería y el cargador por el dichoso sensor que le puede alertar de temperatura alta y deja de cargar y la luz del cargador se queda en rojo intermitente

    Juanmari - 답글

    Reasons for not charging the battery, It is a fault of the battery control board.

    Normally the controller board will supply 100v+, but the faulty controller board will only supply 50v.

    Does anyone know of any repair information without replacing the control board ?

    thank you.

    Adisak Chongjirajit - 답글

  18. Xiaomi MiJia QiCycle E-Faltrad Teardown: 19 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 19 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 19 단계, 이미지 3/3
    • Wir kehren zurück zum Körper des Fahrrads und demontieren noch diverse Teile, bevor wir die letzten Elektronikteile in Angriff nehmen.

    • Das Hauptgelenk des Rads – die Hinterradgabel – ist am Oberrohr mit einer einfachen Inbusschraube befestigt.

    • Nach dem Entfernen der Gabel lässt sich das gebogene, asymmetrische Gelenk deutlich erkennen.

    • Diese einzigartige Form erlaubt es der Gabel, während der Fahrt auf einer Linie mit dem Fahrrad zu bleiben und im geklappten Zustand neben das Vorderrad zu schwingen.

    支撑架的固定位有个螺丝断在里面了,用了取丝器,但因为角度不合适还是没有取出来

    请问这种情况有什么好的办法呢?

    请各位赐教

    shdd_zm - 답글

  19. Xiaomi MiJia QiCycle E-Faltrad Teardown: 20 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 20 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 20 단계, 이미지 3/3
    • Das zweite wichtige Teil, welches das Fahrrad kompakter macht, ist der faltbare Lenker und die Lenkerstange. Der Mechanismus ist ziemlich cool und lässt sich leicht mit einem herausziehbaren Pin lösen.

    • Um die Gabel zu lösen, nutzen wir den unüblichen – aber wichtigen – 10 mm Inbusschlüssel, welcher essentiell für Fahrradreparaturen ist.

    • Die Gabel ist aus einem einzelnen Aluminiumteil gegossen und wiegt nur 0,71 kg, was nicht viel mehr als einem Fußball entspricht!

    Could you please provide detailed dimensions of the fork?

    Alexey Vavilkin - 답글

    My fork broke. Did you manage to get dimensions or find where to buy new one?

    Jev unius - 답글

    The fork is wide enough to house a roller brake but they didn't fit a spacer. Also the axle is longer on the gear side as you can see in the picture on this guide. Another of those anti rotation washers was fitted on the inside of the fork but it's not very thick as you are supposed to add a lock washer under the nut. I think there should be a 5mm thick spacer between the hub and fork or a 3mm spacer if that non turn washer is inside of the fork. This factory setup likely puts the fork under strain until it gets broken.

    Pauli Hartala - 답글

  20. Xiaomi MiJia QiCycle E-Faltrad Teardown: 21 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 21 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 21 단계, 이미지 3/3
    • Was übrig bleibt ist das Oberrohr zusammen mit dem Frontlicht und dem Gehirn (dazu später mehr).

    • Dieses zentrale Bauteil aus Aluminium wiegt gerade einmal 1,36 kg!

    • Mit einer kräftigen Drehung am Vorderlicht können wir es herausziehen und aus seiner Halterung lösen.

    • Ein Kabel mit einem simplen Stecker hält diese leistungsfähige LED nun ja.... leistungsfähig.

  21. Xiaomi MiJia QiCycle E-Faltrad Teardown: 22 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 22 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 22 단계, 이미지 3/3
    • Das Gehirn Die Steuerungseinheit ist an einer handlichen Metallstange angebracht, welche durch zwei einfache Schrauben mit dem Rahmen verbunden ist.

    • Nach dem Entfernen der Schrauben können wir die Steuerungseinheit einfach an der Metallstange greifen und herausziehen.

    • Das Gehirn des Fahrrads besteht aus einer einzelnen Einheit eines e-Bike Controllers von der Marke Ananda, welche viele verschiedene elektrische Fahrradteile herstellt.

  22. Xiaomi MiJia QiCycle E-Faltrad Teardown: 23 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 23 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 23 단계, 이미지 3/3
    이 단계에 사용된 도구:
    Jimmy
    $7.95
    구매
    • Selbstverständlich bedeutet "eine Einheit" für uns nicht besonders viel. Wir entfernen vier gängige Kreuzschlitz Schrauben und beginnen, das Gehäuse aufzuhebeln.

    • Wir greifen zu einem Jimmy und dem iFixit Opening Tool und versuchen, uns an der Abdeckung vorbei zu arbeiten – ohne Erfolg, nicht einmal unter der Einwirkung von Hitze.

    • Wir verlegen unsere Bemühungen auf die Seite der Einheit und was wir gefunden haben war schockierend!! (Leute springen immer auf so etwas an, oder?)

    • Drei Platinen – zusammengehalten von einer Armee von Pins – getränkt in Massen eines gelblich-transparenten Klebstoffes.

    • Wir gehen davon aus, dass dies hilft, Vibrationen abzudämpfen und Hitze nach außen an das Aluminiumgehäuse abzugeben.

  23. Xiaomi MiJia QiCycle E-Faltrad Teardown: 24 단계, 이미지 1/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 24 단계, 이미지 2/3 Xiaomi MiJia QiCycle E-Faltrad Teardown: 24 단계, 이미지 3/3
    • Die meisten der wichtigen Teile liegen auf der Akku-Platine. Folgende konnten wir entdecken:

    • STM32100C8 Micro Controller mit einem ARM Cortex-M3 32-Bit RISC Kern

    • MCP2003 LIN J2602 Transceiver

    • Diodes Inc AS358M Dualer Niedrigspannungs-Operationsverstärker

    • GH17M Transistor

    • Die restlichen in Pampe getauchten Platinen tragen hauptsächlich Kondensatoren sowie andere passive Komponenten.

  24. Xiaomi MiJia QiCycle E-Faltrad Teardown: 25 단계, 이미지 1/1
    • Hiermit wurde dieses Fahrrad nun zusammengeklappt, aufgeklappt und bis auf seine Bestandteile zerlegt.

    • Abgesehen von den langweiligen Fahrradteilen wie Reifen, schließlich interessieren wir uns letzten Endes hauptsächlich für die "elektronischen" Komponenten.

    • Diese Übersicht könnte ein bisschen größer ausgefallen sein als sonst... Ein genauer Blick lohnt sich!

    Nice job, I've just received one of these and am much happier with my purchase after learning about the inside of this sweet ride. Thanks!

    Del Riordan - 답글

    hello the cycle does not react the battery, hard bastane time without load by the shipment and delivery, the loader gives green light parapadeante before connecting it to the battery, I do not know how to make the battery work.

    maogonley - 답글

  25. 최종 결론
    • Es wurden ausschließlich gängige Fahrradteile und Werkzeuge verwendet, was eine Reparatur deutlich machbarer gestaltet.
    • Das Akkupack kann einfach entfernt und ausgetauscht werden.
    • Die elektronischen Bauteile können entfernt werden, ohne die Funktionalität des Rades zu gefährden, was seine Lebensdauer erhöht und Recycling leichter gestaltet.
    • Die Sattelstange, der Rahmen und der Frontnabenmotor sind nicht standardgemäß, was das Ersetzen etwas schwerer gestaltet, sofern der Hersteller sie nicht zum Kauf anbietet.
    • Der Akku ist eine komplexe Baugruppe, was einen Ersatz zur puren Verschwendung macht, wenn einzelne Teile nicht mehr funktionieren.
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Tobias Isakeit

회원 가입일: 03/31/14

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Master Techs Master Techs 회원

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댓글 128개

My axiomi qicycle seat post keeps slipping down despite locking d 2 release clamps tightly. Caused a fall from d bike as d seat post slipped and hit d ground jamming d moving bike. How to tighten d 2 clamps to ensure no slippage especially cycling at a higher speed?

Thanks

Zho - 답글

The quick release clamps can be adjusted by using the bolt on the opposite side of the handle and tightened by closing the handle. The QiCycle is constructed for max 100kg weight. You may also try cleaning the seat post for a better grip (maybe it got a little greasy during the assembly).

Tobias Isakeit -

I am wondering if the two saddle clamps can be replaced. And if so where to find them? Help very much appreciated :).

Jannes - 답글

The saddle clamps should be replaceable with standard quick release clamps of the correct size. Depending on the design the handle might not be curved like the original one and therefore stand off a little bit.

Tobias Isakeit -

Thank you for all the pictures. Unfortunately after a drop of the battery my taillight is not switching on anymore. Do you have detailed pictures of the disassembly of the taillight. Maybe it is only a connector that is loose... Thank you :)

Montie - 답글

Hi Montie, we don't have a separate guide for the back light yet. But to get it off, you need to grab it very tight and turn it counter-clockwise. The rest can be seen on the pictures in step 16 (four screws and the cables inside).

Tobias Isakeit -

Hi Tobias, thanks for the fast reply. I know how to get to the connectors (thanks to your good illustration) but I need to get *into* the light because the connectors which are visible seem to be okay. Obviously I have to peel the red plastic off which is not clipped but sealed. The back (black part) of the light is one single plastic part if I see this right. Any further help would be nice. Should I use a knife? I don"t want to destroy anything...

Montie - 답글

Hi Montie, getting into the light itself without "destroying" it looks quite impossible I guess (we haven't tried it). The light looks as if it is sealed from both sides, front and back.

Tobias Isakeit -

Hi!

My Charger seems to be dead. Even LED Indicator wont light up and it doesnt charge the bike. Do u have any advice or guide to open it up, or to work the batteryside connector onto another fitting charger?!

Thx

Andreas P - 답글

Hi Andreas, unfortunately we haven’t torn down the charger itself. Charging the battery via other means sounds like an experiment I would not recommend unless you know what you are doing.

Tobias Isakeit -

Same with the case you are experiencing, is it now resolved? If so, I would like to get feedback on the issue from you. Thank you

Yosu Hanisusilo -

Someone knows how to bypass/remove/change 20km/h speed limit ?

Thanks in advance

Diego

diego - 답글

There is a firmware update. It came automatically to me via the app. I mean I was asked within the app whether I wanted to upgrade the firmware that would lead to 25km/h.

bill depo -

Just FYI: firmware update seems to be possible only by using an Android device, not iOS.

Andrew S. -

I didn’t get any update firmware . what’s the last software version indicated in bicycle info in the app?

Ali Titan -

What does the Max speed mean?

If I'm pedaling quicker than 20km/h then the engine will not help me to reach 30?

Is there mode how can I ride 20km/h without pedaling?

dannique XXII -

Hi,

I tried to upgrade the Qicycle but it never ask me to upgrade the firmware in the app.

Could you say me which app we have to use ?

- https://play.google.com/store/apps/detai...

- https://play.google.com/store/apps/detai...

I tried with iphone too but it don’t work.

The version of the driving computer is : 1.6

Thx for your help.

Janoyolo -

Hello,

I just get this bike and I’m very happy with the quality of the model! Your tutorial is great and very clear, I will not hesitate to consult it if needed.

I have one question for you :

I’m 1,85m tall and I have to put the seat at its maximum position in height but that’s fine. The problem comes from the handle which is a bit low.

Do you know if it could be replaced by a foldable adjustable handlebar ? I’ve seen some on the market, and it would solve this issue.

Thanks for your amazing work.

Léo

Mourey Leonard - 답글

Yes, it is possible, something like https://www.aliexpress.com/item/Aluminum...

Although the original stem has much better quality, so I ended up just adding this adapter to make the stem longer: https://www.amazon.com/TranzX-Alloy-Twin...

Andrew S. -

I have another important concern :

My electric motor is not working on my Qicycle.

When I use the different modes with the pushbutton, I’m not feeling any help from the assistance of the motor. The battery works properly, as well as the on-board computer that displays correctly : the battery level, the current speed, the power in Watt and the assistant mode.

The application shows the message : "One issue found : please check the motor line on the left of the front wheel”

I don’t know how to proceed to fix this. Can you help ?

Thank you

Mourey Leonard - 답글

You may want to check the cable on the left hand side of the fork if it is connected properly (see second picture in step 11).

Regarding the height problem in your other comment I’m sorry to tell you that the bike is designed for people under 170cm. The seat post and handle bar post are non-standard components and don’t look like they can be replaced with longer versions.

Tobias Isakeit -

This is not true, there are 3 options:

1) Replace the stem with telescopic one

2) Add the stem adapter https://www.amazon.com/TranzX-Alloy-Twin...

3) Replace the handlebar with curved one

Andrew S. -

Please I'm not quite get how to open the hub motor, I've already unscrew 3 screw on the cover lid, still the hub not open, please help.

Bayu Oktaviantino - 답글

у меня такая же проблема. кажется, что корпус является монолитным. это не так, как там покрыть возможные отвинтите.

Leonid Kazarin -

The lid sits very tight. Try to get a grip through the three holes (for example with two allen wrenches) and turn counterclockwise. (Caution: the lids edge is very sharp)

Tobias Isakeit -

What did you use to open the lid Tobi?

Are you using three allen wrench?

Bayu Oktaviantino -

I used two allen wrenches (short part in the holes long part along the axis) and used the axis as pivot point.

Tobias Isakeit -

Is there a way to buy a battery pack for this bike ? I need one desperately …

Miguel Fonseca - 답글

yes, through Aliexpress.

Or you can check out some of the mods to the battery that other owners (Youtube and Google) have done to change the battery unit. This will obviously void any warranty.

Jay -

La bici mi é arrivata con il display del computer di bordo scheggiato,infranto il display una volta acceso non é leggibile.

Come posso ovviare a questo? È sostituibile con un nuovo display?Dove posso trovarlo?

Grazie

Agostino - 답글

Aliexpress…. 65€ circa!

fotoreporter_86 -

The chain jumped down while I went uphill and only low engine support. How can I avoid this in the future?

Jürgen Weißmann (7ii) - 답글

Hi Jürgen, check the spring on the rear chain stretcher (see step 5). This should provide enough tension for the chain to not jump.

Tobias Isakeit -

Hello,

What kind of axel and nuts does the front fork have ?

Is it M10 nuts ?

Thank you

Mourey Leonard - 답글

Hi Mourey, I used a size 19 wrench, so its probably M12.

Tobias Isakeit -

hi! great teardown! do you know the dimensions and weight of the batterypack? i'm planning to buy the bike in china and then send the pack in mail, since its not allowed to take the battery in your suitcase or carry-on in airplane.

maurits irizarri van suchtelen - 답글

Hi maurits, the battery pack itself is 46 x 7 x 7 cm (±0.5cm ;) ), weight is 1.46 kg.

Tobias Isakeit -

Thanks! If its not too much trouble, do you know the size of the bike when folded and the saddle removed? To See if i can fit it in a suitcase without completely taking it apart.

maurits irizarri van suchtelen -

Spiegazione al di sopra di ogni aspettativa. Una pecca, manca la spiegazione su come installare la lingua inglese essendo tutto in cinese.

. Dolcclod - 답글

Dai un’occhiata a questa Playlist.

30 min ed avrai il display in Italiano!!

https://www.youtube.com/playlist?list=PL...

Michele -

help: I update the firmware with android and now the qicycle go fast to 26 km/h, but the led light rear don’t works more!, instead before it’s ok, also the computer on board don’t read the status of the battery, plase help me!! also other peaple have the same problem…

francesco Villeggia - 답글

I have a problem.

When my bike is off, suddenly the engine on for a second and the wheel turns.

This happens more time for a day. Where is the problem? In the controller or in the computer?

Thank you.

Fabio - 답글

Dear Fabio, I have exactly the same problem than you. I have the bike since 2 weeks and even the bike is off, the wheel turns anytime sometimes one turn sometimes more …

Do you fix it?

Thank you bye

Olivier - 답글

Hi everyone,

Did anybody find the right antitheft combination for the QiCycle ?

I’m thinking about the Kryptonite NY M18-WL + some Hexlox to secure the saddle, handlebar and wheels. But as I’m still waiting for the bike to be delivered, I can’t really figure out if Hexlox can be used on these wheels.

Anybody tried or has other ideas ?

Thx !

Léa Gilezo - 답글

Hi,

Please can someone help me with the gears? I received my bike on the 28th of this month and I have successfully upgraded to latest firmware. The problem I am having is on the 2nd gear when i pedal it feels like it is skipping, it is not pedalling smoothly. 1st and 3rd gear seem fine and don’t skip.

Any ideas how i can fix this? I notice the yellow dot in the nexus gear is not in the correct lines.

Thanks Az

Az Rahman - 답글

This is because you have folded the bike in 2nd or 3rd gear, and pulled the gear cable, you need to fold it ONLY in 1st gear.

To fix it now you have to follow this procedure:

http://en.miui.com/thread-330192-28-1.ht...

arnaud greusard -

Hallo,

mein Qicyle hat anscheinend leider einen defekt. Das Rad schaltet sich von selber aus obwohl der Akku noch 80% hat und am Akku selber noch 4 LEDs leuchten. Auch das Update konnte ich nicht aufspielen, es wurde mir von keiner App (ich hab so ziemlich alle Apps probiert) angeboten.

Hat einer ähnliche Probleme? Ich gehe davon aus, dass der Akku defekt ist. Bei Lieferung war er komplett leer, also keine Statu-LED am leuchten.

Beste Grüße, Christian

Christian - 답글

I have recorded the issue. If anyone can help?

https://drive.google.com/file/d/1y2EZdu8...

Thanks

Az Rahman - 답글

Hi Bobo,

Thanks for the video. I saw this same video earlier today and followed the same steps but I couldn’t get the yellow dot to align in the middle of the 2 lines as shown on the video.

None the less I turned the cable adjustment all the way in and even though the yellow dot isn’t in the middle of the 2 lines it fixed my issue :)

Thanks

Az Rahman - 답글

Hi, I need to increase the speed of this bycycle, would you help me with the tutorial, the video. Thank you.

Dušan Hojer - 답글

Dears, I just received my bike, the app on android proposed me the upgrade. Since then, The onboard computer shows my battery being empty, the red light doesn’t work anymore also the electric assistance doesn’t work. Any way to do a downgrade of the onboard computer? (as on the battery the 4 led lights are on when testing.)

honer - 답글

Hi Vincent , take a look here >> http://en.miui.com/thread-710300-1-1.htm... <<

I solved same issue following the instruction of the user julferber ( see page 2 )

Be patient and good luck ;-)

Bobo - 답글

Hi, i have Qicycle EF1 since october. The bike worked well since yesterday. Since yesterday, the bike has some issues that are a little bit annoying.

I think it may be that the speed meter is broken, so it does not detect that the bike is in motion. (posible issue of hub gear motor measuring speed?)

-Display don't show speed screen when I run with it (in 22km of my travel, only show this is screen 2 times only 10 seconds, and the display show 0 km/h, 0km, 0wat) But all time this screen doesn't appear. Only show battery screen, the same screen when you're stopped.

-The display tur off when I'm ridding, like when the bike is stop. 1 min for default setting. When I press a button when I'm reading, the screen wake up, like when the bike is stop.

- I can't change the power assistence, If i change the bike continue to 150%.

- In some cases, the bicycle offers less assistance and lowers the power alone, just a few seconds, without any reason. The engine continues, but with less power.

Thanks!

doctorase - 답글

Hi,

You can follow this to fix your problem:

https://translate.google.ru/translate?sl...

Az Rahman -

Is it possible to put all the pieces into a bagage 31CM*46CM*70CM?

Tao Wang - 답글

Probably not. Bike dimensions folded are: 450x1000x650 mm. See product page, under specifications.

Tobias Isakeit -

Is there a way to remove the speed sensor or trick it to believe it’s going slower than it is?

arnaud greusard - 답글

I mean to increase the top speed past 25kmh which is still a little slow. Or a firmware hack?

arnaud greusard -

hello: I just got the bike and my mother fell with the bike and she hit the screen. I do not know if it has arrived with defect or has been the blow on the screen! The problem is that suddenly the screen turns off and runs out of energy! Sometimes when it is turned off and the lights are on, the back light stays on for a few seconds when the screen is off, until it shuts off completely. I'm about to buy a screen! I could i check in some way that the screen is causing the bike to turn off?

Andrés - 답글

hello: thanks for your previous response. Today, lift the front wheel of the bike, when I was walking. It stopped working. it went out I checked the cables with the (polymeter tester) and the cables are not broken. What do you advise me to do?

Andrés - 답글

hello,

i have MC and BMS show 000-000-00 and i’ve lose electrical assistance !!

can not update MC and BMS with QiCycle app official or not :-(

axel ta - 답글

Salve, sono Vincenzo

ho una qicycle, che negli ultimi giorni mi sta dando problemi, la sento più pesante ed il motore non mi sembra sia scattante come prima.

Da cosa può dipendere? io mi sono accorto di qualche anomalia al cambio, la marcia 3 non entra alla perfezione e la taratura in seconda risulta non corretta, il pallino giallo si trova fuori dalle due estremità di “set” può dipendere da questo? cmq cercando di settarla rimettendo il pallino al centro , ma quando provo a muovere il cavo di riferimento questo non si muove… che posso fare?

grazie a presto.

vinz - 답글

* Why has the control unit 5 pins? It labels plus and minus for the 42V so far so good but what is the e.g. Vlm pin for?

* Also the charging cable has 5 pins. Why is that? The battery has 10 cells in series so I guess it cant be for balancing reasons.

* Where can I find such a connector/socket for the control unit plug?

The reason for my questions are that I am planning to do a 42V battery pack by myself.

Martin Hammer - 답글

Hey Martin,

have you figured this out? I’m also interested in this.

IR Here -

Hi guys,

I am experiencing an issue that has been recorded from others as well in the past.

The motor has stopped working since a few days.

The story:

- I had an accident falling off the bike about a month or two ago and since then I have been experiencing problems with the electrical assistance.

- First symptom was that the motor would not work always

The problem here was that the cable attachment under the battery tube on the front (https://i.imgur.com/SQFFSUQ.png) connecting the motor, battery, Hall sensor etc. had been slightly removed because of the usage and the crash potentially. The problem was fixed after it was properly attached.

bill depo - 답글

To get the motor to work again I had to completely stop the bike so the Watts would go back to 0 and then start again.

bill depo -

- I kind of got used to the above problem but then the motor would not work at all. The display works as usual (showing Battery, Speed & Watts ).

I opened the black cable from the motor as in the post below and found one of the three (the blue one) fat wires inside (out of 9 in total) cut. I then used one of those wire connectors https://i.ebayimg.com/images/g/HnoAAOSwG... to connect it back and did it successfully. After removing the cable all the way from the motor to the plug before the torque sensor I tested with a digital multimeter that there is conductive path from each pin of the plug leading to the torque sensor with one pin of the central plug (under the battery) and same between the pins of the plug leading to the motor and the central plug again. So, it seems that everything works correctly with the cable.

https://translate.google.com/translate?a...

bill depo -

Doing the self-test within the app for the bike, I got notified that there is a problem with the front wheel and the left side of the cable . As mentioned previously everything has been plugged correctly and fixed the cables.

My only hypothesis is that either:

1. The torque sensor is not functioning properly (I will try cleaning it as per the link https://translate.google.com/translate?a...). I don’t think it is this having a problem though, cause the Watts displayed are in a normal range that the motor would normally work. Same for the speed therefore the problem must be in the motor

2. The motor has a problem. I have unscrewed the 3 lid screws but can’t open the motor at the moment and even then I wouldn’t know what is the problem and how to fix!

3. There is still a problem with the cable or plugs (eg not making proper contact)

What do you think might be the problem and what should I do next?

bill depo -

Hello, it would be possible to replace the wheels with 20 inch wheel?

faisalhok - 답글

hello,

few days ago i bought an used Qicycle. The Bike totally has 12km. Outside it’s in a very good condition.

Now i recognized that the wattmeter still shows “0”. I am sure the motor doesn’t function. Now i need some help .

What I did :

-Flashed back original software now it is :

LINPic 003-013-000

MC 005-017-000 (25km/h)

BMS 018-024-023

Firmware 1.6.613

-Checked Akku -> Loading Okay, Lights Okay

-Checked all cable connections (motor left, controller, display, hall sensor)

-Checked intergrated cable if it is broken. All 16 cable contacts give a signal. I post the wiring of the cable for the community. With my plan you can check if the wiring is ok.

http://up.picr.de/33540863mf.jpg

what could i do now ? Buy a new motor, how could i check if it is broken ?

Buy a new controller ? Does this make sense, because all seems ok. The Qicycle Software says “bike is Ok”

Buy a new “Hall sensor”, don’t know if this could be the problem…maybe a expert could tell me.

If somebody help me to get a solution i would donate something.

harald

Harald - 답글

Dear Harald,

My integrated cable has more than one pin broken but I couldn’t figure out what wire to check as all 9 wires look intact in appearance. Please send me the wiring color code for pin numbers that are shown in your wring diagram.

Many thanks in advance.

phu dang -

Oh..sorry, at the Moment couldnt find it…

Harald -

hello, problem is solved, changed the torque sensor/ hall sensor and now the motor starts and the wattmeter works.

Harald - 답글

There is a strong resistance on front wheel only when turning reverse (no resistace moving forward). Motor not working although computer provide all the data even the watt usage. Pls assist any feedback would be very much appreciated

lousky007 - 답글

Hi lousky007!

My bike has the same problem too. I tried unplugging the cable from the controller and the front wheel can be turned backwards without such resistance. I did the same procedure to the hall sensor but the prolem remains the same so a malfunctioned sensor could be ruled out. I guess the segment of cable that connects the front wheel motor to the controller may have some broken wire in it. This segment of cable is very tight so don’t turn the front wheel to the left until it stops as it is prone to failure if you overdo. I ordered a new cable and I am waiting for my delivery. Have you successfully fixed it yet? If yes, please tell me the right cause.

Thank you very much.

phu dang -

Where did you buy this cable?

Karim -

Hi Karim,

I am so sorry for late response. I bought the cable from Aliexpress. Just google it and the results suggest a variety of shops selling it. But at the moment the cable is not available any more. I think you should wait and check it on Aliexpress periodically. In the next five days I will give you the wiring color-pin information, DO NOT discard the cable, it’s the most repairable part once you idenfy the damaged wire(s). I will try get back to you soon. Have a good day!

phu dang -

@phu dang,

sorry i have no color code for the pin numbers, because i only did a measure of the cables. my wiring plan is quite simple you only have to check the numbers of the pins which are wired.

as i wrote above my problem is solved. First problem with the update was an incompatible android smartphone. Changed ist and the update was successful. Second problem was not the wiring, but the hall sensor. Changed it to a new one and evrything was fine.

If you habe broken pins on your cable why don’t you chnage the cable. It costs about 25$ and changing should not be a problem.

Harald - 답글

@harald

Thank you very much for your kind reply. The problem my bike is experiencing may be somewhat that relates to the front wheel motor, the controller, the hall sensor, the cable… I have ordered a new cable on Aliexpress and I am waiting for my delivery. But what if I can’t still fix it? I will try replacing with another part by ordering a new one until the problem is resolved. I will let you and everybody in the forum know the exact cause when i have sucessfully fixed it as a way of sharing experience.

Have a good day my friend.

phu dang -

hello phu dang,

best wishes for you to solve the problem. i understand that you are afraid of not finding a solution, for me it was the same. As i said it is easy to check the cable. take my wirking plan and a voltmeter. you can easy do a measure if there is cntact between the poles. As i read in other forums often the hall sensor was the problem. The motor or the platine/chip/controller is rarely the problem. The motor is verry robust. Are there any errors shown when you do checks with the app ? The app should show contact/wiring problems with the motor. In the other forum someone told me to change the hall sensor and he was right.

https://translate.google.com/translate?a...

Harald -

Hello Harald,

I greatly appreciate your kind suggestions and your helpful information. Because at the moment the cable has not been delivered yet so I cannot do anything with my bike. I’m glad to hear that the motor is robust and it seems to immune to malfunction as this part is very expensive. Could you tell me the app you mentioned that can be employed to check problems relating to contacts/wiring with the motor?

Thank you very much and best regards.

phu dang -

Hello Phu Dang,

its the Original App from Mijia .Maybe it is only in Chinese Playstore. You have to sideload the APK, for example here.

https://www.apksum.com/download/com.velo...

The App cant check the motor or the wiring direct. But for me it was so that it showed no error. For other people it showed errors which mostly have to do with wiring in the front to direction of the Motor.

Harald -

Dear Harald,

Thank you very much for your help. I will try the app and let you know what it’s telling later.

Could you send me the address link to buy the torque sensor on aliexpress?

Best Regards.

phu dang -

Hello Phu Dang,

this is the spare part i ordered.

https://www.aliexpress.com/item/-/328686...

Harald -

Hello Herald,

The item from the link is no longer available. I did google the torque sensor and the LCD monitor but I could not find any items that is available at the moment. OMG this time would be a tough one for me. Do you have another link for those items?

Best Regards

phu dang -

In this link First isahown Not available but if you choose delivery country (for me germany) i am able to put it in the basket. 97 items are available

https://de.aliexpress.com/item/-/3284591...

Harald -

Dear Harald,

I picked Vietnam as the delivery country but the message ”sorry, the product is not available at the moment” kept popping up. I think the best thing I can do now is to wait for the cable assembly to arrive and then decide the next step to do. OMG this is a time-consuming task so I’d better stay calm and wait.

Thank you very much for your kind support.

phu dang -

Hello Herald,

Is it possible to install throttle into this bike?

Jay

lowkf - 답글

hello jay,

hahaha i am not a technican for qicycle bikes i am a user as yourself. i think if you are good you could do anything with the bike. here is a video which shows the opposite of a throttle, a mod fro full power

https://www.youtube.com/watch?v=gqvqy6Ht...

Video only should show that everything is possible, but i don’t know how to do such mods.

Harald

Harald -

good afternoon can you tell me the difference between model TDR01Z vs EF1 What is the international version? thank you

sica82 - 답글

Hi, i have Qicycle EF1 since Feb-2017. The bike worked well since yesterday. Since last tow-day before, my bike front wheel inner tube bust. so i open the wheel bolt nut b4 i unplug hub motor wire,. after replace tube with Tyre, re-fix as well same. after test cycling motor not running… the bike has some issues that are a little bit annoying. the computer display motor speed meter show well battery also 100’/. whats a problem can solve me pls…. here Singapore so hard to find a repair shop…

Ramesh. D - 답글

The saddle clamps should be replaceable with standard quick release clamps of the correct size. Depending on the design the handle might not be curved like the original one and therefore stand off a little bit. https://apkroyal.com/app/six-pack-in-30-...

Apk Royal - 답글

Très utile, merci beaucoup!

Isabelleni - 답글

Amazing post. I really need some help. The part that connects the seat to the top of the pole has broken on mine and I cannot find the part. I visited many bike stores here in the UK and cannot find a replacement. Also, where is the best place to get a new charger? thanks again

Gazzi Keny - 답글

Hi Gazzi Keny, maybe you’ll find some information here at the answer section: Where can I buy spare parts of Mijia QiCycle Folding Electric Bike?

Tobias Isakeit -

Hi guys,

I bought this bike as used (the total Kms made by the previous owner was 320, so I consider the bike almost new), and I’m going to use it in order to reach my new work place that is at 55 minutes from my house, hopefully I’ll save a lot of money from transports, and I was wondering if this is actually reliable because I’m gonna do something like 30kms per day.

I’m currently waiting a new battery from aliexpress, in order to be able to cover more distance. Do you think that the Qicycle could be ok?

However I have one little problem: the plastic that holds the display to the handlebar was broken due to a problem during the shipping, and even if it holds now, because the previous owner fixed it with glue, I was considering to change that specific part, but I would like to keep the display because it works perfectly, even after I updated the firmware to the 25kmh version.

So basically it is possible to change only the plastic that holds the display, without changing the whole thing?

Thank you very much!

Matteo

matteoparissi - 답글

Im having problem locking the magnets together phone folded, the magnet can't seem to hold is it a factory defect or are the magnets of the qicycle really weak, or if it an alignment problem. Thanks

Jackson Tan - 답글

hi,

do anyone know which nuts are at the front axis ?

Its not just a normal M12 …

best regards

Fritz - 답글

thanks for this wonderful article

vaino sereno - 답글

“Der Akku ist eine komplexe Baugruppe, was einen Ersatz zur puren Verschwendung macht, wenn einzelne Teile nicht mehr funktionieren. “

—Das stimmt, deshalb gibt es Akku Spezialisten wie mich (www.ebike-workshop.com) die hier auch nur die (verschlissenen) Zellen tauschen können. (natürlich inkl. Punktschweißen, Kapazitätstests, Funktionstests, optionale Leitungserhöhung durch moderne Hochleitungszellen von SAMSUNG usw..)

Holger Lang - 답글

since changing the frontwheel tire severalproblems have developed with the motor.

1. the motor starts before pedaling begins.

2. the motor appears to be on continually, thus the available energy from the akku

is very rapidly reduced.

is a reset possible or any suggestions to deal with the problems ?

I have opened and reconnected the cable connection for the motor on the front fork

during the tire change.

the power for the bike was switched off during the repair.

reidfa - 답글

Hei!

A have the same problem. I changed the tires and since then motor starts before pedaling begins and if I stop pedaling motor still runs.

George Mileschin -

Hi - how do you switch on the front and rear lights

Shaf Ali - 답글

Hello! The seatpost of my qicycle loosened and crashed into a stone, the bottom part bent and I can't straighten it Anyone know where to get a spare. Thank you

Emilio Martin - 답글

Take a look over here, maybe you’ll find some information in this answer section: Where can I buy spare parts of Mijia QiCycle Folding Electric Bike?

Tobias Isakeit -

I found This page by searching for qicycle accident and need to share my experience. After buying it brand new and using it 5 times to go from home to the tennis court 1km from my house when I was ridding it the welds on the steering column between it and the handle bar cracked open and the handle bar detached completely from the steering column. I had several traumas on legs hands, head and shoulder and an acromic clavicular dislocation level 5. Now Im gonna have to do a surgery to fix my shoulder and as I imported this $@$* from another country there is no company I can sue in my country. I recommend you all to keep an eye on this welding and replace it with something safe or tou might not be as lucky as I was.

gilmarpurin - 답글

How to change Qicycle Boot Logo by Grimor:

https://youtu.be/emMwQ-Tpyqk

Grimor Jander - 답글

After 3 years my bike starts to drive on it‘s own and powers up to 120 watt for 8 seconds after last pedal movement - which unit would you change first?

Marcus Hayer - 답글

Hi all, I just bought a brand new qicycle but I noticed that when moving the front wheel in reverse there is a little resistance if moving slowly that disappear when moving faster. When spinning the front wheel normally there is no resistance at all. Do you think it is ok? Thanks in advance

Alessio Diamanti - 답글

Do you have teardown for the Qicycle EC1? (model: TDP02Z). My EC-1 won’t charge only after 1 time use. Can you help find out What the problem might be? Thanks.

Jones Prabowo - 답글

Hello everyone, I’ve a Xiaomi Mi Qicycle bike, i used it for a few months but a day at some point the screen changed: doesn’t shows me the speed modes anymore and there is no electrical drive anymore. The mode is set one BO+ and i can’t change it. The only options on the display are SET, SUM and INFO. I checked the cables and it seems they are all in place and not damaged. Does anybody know what the problem can be? Somebody that had the same problem? thanks

nicolo.morando - 답글

Gab es hier eine Lösung ? Ich habe das gleiche Problem Mein Rad hat keine 300 km gelaufen

Fanoe SLUNDEN -

Is bms locking after disconnect from cells ?

Łukasz Dąbrowski - 답글

A non-electronic question: Here with my EF1, the front steerer tube has a bent screw. I think the pull was a bit intense sometimes. Now the folding mechanism can’t be fixated properly anymore and the steerer tube folds ocasionally.

My question is: Where can I get a replacement screw? Does anybody know the specs what screw to look for?

huedrant - 답글

I found one, by the way, in my local screw shop. No online options, only good old shop owners could help me out with the correct screw.

huedrant -

Hi,

Do you know the manufacturer name and P/N of the charger connector (the one you connect to the bike) ?? I bought a QiCycle charger but its connector does not fit my bike which is a XIAOMI one… Connectors are similar but not the same….

Many thanks in advance.

Christophe ILLGEN - 답글

Hi thank for that very close look to the bike. I wonder what's the size or specs of bottom bracket. Mine makes too much noise I need to replace it.

hadi khalili - 답글

Hello guys,

I bought this bicycle. At least I thought I bought this, but it turned out there is 2nd generation after 2020. I wanted to modify to full throttle but it has a torque sensor in the bottom bracket. Do you have any idea how can I manage a modification?

László Kálmán - 답글

I received the bike for free but i have some issue :

· Battery won't charge anymore, The charger light stay green.

· monitor won't start

· Battery led blink 10 times only when i pushed the button when the charger is plugged.

· I tried the trick by reversing the front wheel, but the charger light still stay green

Then

· I've managed to dismount the battery and charge it to a benchtop power supply at the maximum it can do : 30v and 1.5a ( limits of the benchtop )

· Battery giving me 19v before charging (Black & white wire ) and 21v (black and Red wire)

Results

Still impossible to charge the battery ( voltage is too low i think ) but i'll try again to reverse the front wheel with an Electric drill.

Actually there is still all the led blinking 10 times when and without Charger this time.

Do you think there is any hope to revive the bloc? There is any chance that the BMS is broken due to a direct charge ?

Maybe should i charge each battery individually ?

Somersby - 답글

I ran into a car on my 1 year old bike (their fault). Result: bent fork, damaged head pole and broken front rim. No shop in Germany will fix it for me because they are not the standard parts - as noted here in this page!

If you need parts and you are in Germany - check out Kleinanzeigen, maybe I can help you get back running!

Alex Hernández - 답글

Hello i got the qicycle second hand, but here in Norway its got max speed of 20km, but i want it to go max by the law and that is 25km. i need to change the dashboard to a chinese one because the international version dont have bluetooth, i was hoping that you had a guide on how to remove the part, but i couldent find one, where do i unplug the dashboard?

Olaf Jørgensen - 답글

Hello, do you know how to fix Qicycle that turns off randomly? It was turning off randomly while I was riding it but now it won’t turn on at all. Any help appreciated

veronica.m.tello - 답글

hello.....I'm looking for 6 pin controller, most available in the market is 5 pin. Any help appreciated

rowdy - 답글

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