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Amazon.com : BAFANG 20 Inch Fat Tire Electric Bike Rear Wheel Conversion Kit, 48V 750W Geared Motor, 175mm Dropout, Cassette Freehub, Pedal Assist and Throttle Function, APP Control LED Display : Sports,

Amazon.com : 48V 750W 20/4.0/26 * 4.0 Inch Wheel Conversion Kit with G062 Bafang Rear Cassette Motor for Fatbike, Dropout 175mm/190mm (with 500C Display, 26 * 4.0 Inch,Drop Out 175mm) : Sports & Outdoors,

BAFANG 750W Mid Drive Kit,Mid Drive Ebike Conversion Kit Brushless Upgraded Motor with LCD Digital Display Chainring for Commuter Bike,Recumbent ,

BAFANG 20 Inch Fat Tire Electric Bike Rear Wheel Conversion Kit, 48V 750W Geared Motor, 175mm Dropout, Cassette Freehub, Pedal Assist and Throttle