... 2.high quality, 3.faster speed, 4.lithium battery. 1.Feature:High efficiency,High torque to climb,Double ... .5-13kg 3.Steps to DIY your bike:With our e-bike kit,your bike can be ... front or rear wheel with one provided in the kit.Fasten the controller,battery and other small parts. ... h miles depending on battery,way of riding,wind and terrain. e-bicycle conversion kit with battery ,eletric bicycle motor kit ...