... . 2.Axle: B/A Axle, British System, BLK/UCP 3.Brake: F Caliper Brake ED thickness is 2.5mm ... 125 16"x2.125 20"x2.125 / EVA tyre 6.Handle Bar / Stem : CP, thickness 1.2mm,argon-arc welding. 7.Chainwheel&Crank: ... 16"--28T*102, 20"--32T*127, ED/CP 8.Crank:CP or ED or UCP 9.Pedal: Without ball, Plastic with reflector, ... / RUBBER FORM 12.Rim: Alloy rim or steel rim, CP,0.95mm,12"-20" 13.Freewheel: 12"--16T ,16 ...