1 electric bicycle conversion kits 2 with CE approval, 3 motor: 180-250W high speed 4 Controller: 36V/48V Electric bicycle kit and electric bike kit1. Charger: 36V/48V2 ... case,controller,charger etc7. Motor: 180W,250W,350W,500W,800W,1500W,2000W,etc we can supply electric bicycle conversion kits Verified Information This information ...