We are offering electric bicycle. Technical paramatersthe frame and bearing, crank gear are alloywith front light, rear light and horn24inch spoke wheel, m-finish rim36v, 10ah lithium-ion battery packthe battery can be charged 500 circlescharger time is 6 - 8 hoursnet weight : 23kgmountain tyre : 2224 x 1.751:1 assistant transmission with pedal, assistant startbrake : front u brake, rear mini-drum brake, safe and no noiseshape dimension : 1, 720 x 690 x 1, 140mm