24 inches folding mountain bike off road variable speed racing car damping high carbon steel material non slip wear resistant time saving co
international certification, inspection report, 15 cycling tests, 32 material tests, higher appearance, labor-saving and time-saving, easy to go upstairs, precise speed change, convenient to carry, more stable brakes, not easy to rust easy to fold in 3 steps, light and convenient operation, can be parked for buses, subways, trunks, etc.