shengyi

If you are looking past Bafang for a Chinese mid-drive motor, your realistic options are Tongsheng (TSDZ2), Toseven (DM series), and Shengyi (CMT series). Tongsheng gives you the best torque-sensing pedal feel. Toseven runs quieter and handles sustained power better but skips native torque sensing. Shengyi packs the smallest, lightest package and offers an optional…