Amazon.com : Ebike KIT 350/500W Electric Bicycle E Bike Complete Conversion Kit Front Hub Motor, Battery Li-Ion 32km/h LED 26/27.5/28/29/700C rim sizes (Bike not included) : Sports & Outdoors

https://www.amazon.com/gp/product/B01FGVOJNQ/ref=pe_1874480_250729740_em_1p_0_ti