DIY electric bicycle kits Electric bike kit 12-28"wheel,24-48V CE,CCC,EN15194,RoHS DIY electric bicycle kits Electric bike kit 12-28"wheel,24-48V CE,CCC,EN15194,RoHS We can supply many kinds of e-bike wheel kit on the basis of OEM service.Electric systemMotor: Front wheel,light,high speed,brushlessGreat hub motor,16inch 28inch wheel optional.DISC brake optionalBattery: 24V/10Ah 36V-10AH,36V-7Ah ...