; Our electric instant start pedal assist e-bike kits can be installed on any bicycle by replacing the front or rear wheel with our 36V 500W brushless electric hub. Ampedbikes? kits can be retrofitted to any bicycle type: road, recumbent, tandem, folding, mountain, cruisers and comfort bikes in an hour. AmpedBikes? make good ?Green? sense and they're also fun to ride!