Replacing Gear from Shimano Nexus 3 to Nexus 7
Is their measurement compatible? Will it just only the matter of replacing the internal hub and shifter?
좋은 질문입니까?
Is their measurement compatible? Will it just only the matter of replacing the internal hub and shifter?
좋은 질문입니까?
The shifting mechanism is different between the 3-speed Nexus and hubs with more gears. So you might be able to swap them out, but you’ll have to check your bike frame to see how the gear-change mechanism mounts to the axle and rear frame chainstays. Shimano also makes a variety of different Nexus models with different widths, so you would have to make sure you get a Nexus 7 model with the same hub width as your Nexus 3. Depending on the age of your bike, the correct Nexus 7 hub might be hard to find. Newer “Alfine” models have a totally different shifting mechanism that might not be compatible with your bike - you’d have to check your rear frame to see.
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