M Maximum efficiency: >=88% Wheel diameter: Approx. 20in Wheel width: Approx. 4in the rear drive is 170mm.
20inch 48V 1000W E-bike Conversion Kit Rear Wheel Electric Bicycle Hub Motor Set
M Maximum efficiency: >=88% Wheel diameter: Approx. 20in Wheel width: Approx. 4in the rear drive is 170mm.
