36V 40km/h 24" 26" 27.5" 29" 700C Electric Front E Bike Wheel Kits iMortor 3.0. Material: rubber and aluminum alloy - Position: front wheel of the bicycle - Connection: Bluetooth 4.0, supporting Android and iOS system - Applicable: 24/ 26 / 27.5 / 29 inch and 700C wheel of mountain bike, road bike, leisure bike, etc.
IMortor(B) : Full wireless version.