... alloy;26 inch city e-bike fram 26"Electric bicycle,Electric city bike, Our main productsinclude Electric bicycle,bicycle,bmx&freestyle bicycle, beach cruiserbikes, folding bikes, city bikes, kids'bikes ... ; 26 inch city e-bike frame4.Controller:36V 15A; 1:1 assistant(with sensor); brushless controller5.Battery:battery type:Lithium battery; capacity ...