... quality Aluminum alloy. 6. The e-bike looks handy and portable.And more important,it is easy to remove. ModelSpecificationTDP1001ZFrame18"*410mm ... ,which can withstand 200,000 times of vibrations, shock device and the drive system have become a unique advantage of the ... of impack,stress,puncture,short circuit,high-voltage charge,high temperature and other extreme conditions, it will not explode or burn. ...