Hi, thanks for the reply. The bottom bracket is a Shimano SM-BB90 which I believe is 73mm. I don’t ride hard just over the local common with my son and dog! From reading reviews I preferred the torque sensor setup of the Tongsheng but am open to advise on this? How do you connect up the brake lever electrics as mine are hydraulic? So if I sound a bit thick but this is all new to me.First a couple of questions how wide is the bottom bracket is yours the push fit hollow tech version ?
Will the battery fit in the frame triangle ?
After a couple of years of tsdz2 builds/ ownership always 48v and 15/18 amps , my two pence worth if you intend to ride it hard and do not wish to fiddle and replace parts etc pass and buy a bafang but if you persist and do not mind problems and repairs it can be a very rewarding ride
From what I can find online without actually dismantling the bike it appears to be screw in:Now have gone back to a bafang mid drive for my lazy winter ride, but when running ok loved the feel of the tsdz power delivery i never had a serious failure but others have ,its not the width of the bb but is it a push fit or screw in