... TIRE 12*24T one piece crank F+R caliper br bike bicycle: 12*2.125 air tireABS RIM&EVA TIRE12*24T steel ... designitem no:12" 16" 20"Frame :steel and painting, argon-arc weldingB.Bparts:5pcsRim: steel Mudguard: PlasticTyre:air tireChain: 9-type ... Caliper BrakePedal: plastic, with reflector, without ball,Saddle :leather, commonFork: steel and painting, co2 welding steelCrank: one piece EDColor: pink,purple ...