... 3) Alloy frame 4) Japan 6-gear derailleur Popular Electric bicycle with EN15194Motor of electric bicycleRear drive, 250W, brushless, hub, 8FUN(famous brand ... loading QTY80units/20'GP, 170units/40'GPOptions (not free)front light & rear light, front-drive motor, lock, 36V/9Ah Samsung li-ion ...