Gru-bee skyhawk brand name; made in China Top of the line: Most powerful available: Highest quality available; 48 volt front wheel kit to convert a standard bike to a e-bike. Installs in minutes; net weight, less batts. Added to bike is only 13 KG. Use 4 standard 20 amp hour e-bike batteries. Batteries sold seperately or can be obtained locally. Available in 24 and 26 wheel sizes for standard bicycles. Flat land max. Speed with average wt. Rider is aprox.18 to 22mph. Enough power to pull away from dead start without pedalling. Pedal generator not needed. Enough battery capacity to go 10 - 12 miles at crusing speed without pedalling. Batteries hang on both sides of rear wheel in saddle bag configuration. Kit contains; 48v 500 watt brushless motor pre-installed in a front wheel with tire and tube inclued; stainless steel spokes.2 steel battery baskets with canvas covers; chrome rear rack to hold controller and battery baskets; throttle and brake controls; pedal generator not required for soft start; two 24v 110v 60cyle AC chargers ul approved for parallel battery bank charging simultaneously; seat bag for conections; wiring harness and English instruction sheets: Individually boxed suitable to re-ship to customer; great ebay item Sold direct from China factory; FOB: Shanghai