This is German and American model type, Fastened with high-strength bolts, the hub and stub kit is of high strength and good anti-connection strength. Features of rear axle hub assembly Fastened with high-strength bolts, the hub is of high strength and good anti-connection ...
Electric bicycles are becoming more and more popular. However, their most striking thing is to provide two-wheeled electric vehicles for leisure riding and commuting. The two most popular motor system designs recently used for electric bicycles are mid-drive motors and hub ...