48V 500W rear motor normal kit Specifications: - Motor: 48V 500W(180℃ copper winding+ good magnet) -Double-wall alloy rims spoke (2.6mm spokes spoked by park tool) -Thumb throttle( with three lights shows battery capacity) -brake(for both side power off) -48V 31A controller (15 MOZ tubes in it) - 1:1 PAS -Weight: 11KG/12KG -tire: 26'x1.95 - Requires: 48V Li, Lead-Acid, NiMH Battery Packing lists: - 48V 500W brushless hub motor - 26" rear wheel - Electric controller - Thumb throttle - Two hand brake lever - Pedal sensor - Battery carrying bag - Instruction manual NOTE: Battery and charger NOT included with this conversion kit Dropout is 135mm. Please make sure the axle dimension and wheel size are compatible with your bike before placing your order.