Amazon.com : VBESTLIFE 20" Rear Wheel Electric Hub Motor Kit, 20inch 72V 3000W Electric Bike Controller S900 Panel Rear Drive Hub Thumb Throttle Kit for Electric Bike Conversion : Sports & Outdoors
Shop eBikeling Waterproof 48V 1200W 24" Direct-Drive Hub Motor Wheel
Rear 500-1000w E-BikeKit Direct-Drive Motor - Wheel only