... CCC,EN15194,RoHS Let's make things better!Electric bike kit 12-28"wheel,24-48V CE,CCC,EN15194,RoHS Let ... with BMS in Rack,Tube,Lift,Frog styleThrottle:Twist or thumb throttle available(No throttle for Euro)Display: Water proof LED ... front or rear wheel with the one provided in the kit b.Fasten the controller,battery and other small parts c ... to worry trafficJam or air pollution! electric bike motor kit