Most bikes should be easy to convert ... you will be stuck in a single gear if the battery dies since the manual shifter is completely removed. As one of the oldest continuously used forms ...

He finally hit upon the idea of creating a 3D printed bike shifter, and after an afternoon of engineering and printing, the shifter ended up working very well. [Rich]’s shifter is actually a ...

Bike sometimes did not get 8nto first gear from neutral and something it's gear change it from 2nd gear into neutral without staying at 1st. And another bike did not neutral from first gear.