I want to put mid drive to my MTB but not sure if it fits. Bike has Shimano bbs-es25 113mm bottom bracket axle. Tips for attaching battery to frame is also appreciated battery holes doesn't match with bike frame bottle cage holes.
Thank you, I think I will go with bbs02b then. Do you have any clue about gearshift sensors? I was planning to get this one:
https://www.aliexpress.com/item/32856449441.html