1. offroad e bicycle with Own Exclusive Patent 2. 1:1 intelligent pedal assistant ... : 150W-250W high speed brushlessless motor with gear9. Battery: 36v 9AH lithium battery10. Controller: 36v,180w intelligent controller11. Charger: 1.5AH smart charger12 ... . Weight: G.W 24(with battery); N.W 22(with battery)21. Approvals: CE, RoHs, FC, CSA, 3C, ISO9001, ISO9002 Electric Bicycle EN15194