foaming wheel kid's bike 1.weight:3.1KG 2.frame:steel 3.wheel:EVA plastic 4.wheel:210mm foaming wheel kid's bike 1.Size12".14".16".18"and20".2.Handle barSteel insert and plastic outside3.FrameSteel,painted, argon welding4.ForkSteel,painted, argon welding 5.Head partsSteel,set of 86.MudguardPainted7.Chainwheel28 teeth x 3.5" crank, standard, cottered 8.BrakeFront & rear calliper brake9.Rim12 inch, ...