... kids bikered, blue, yellow, black, pink, purple and so onframe of kids bikesteel and painting, thicker argon-arc welding/CO2 weldingfork of ... kids bikesteel and painting, CO2 welding steel/ suspension forkrim of kids bikealuminum or ... and stem of kids bikeCP, argon-arc welding, separate handle,steeltyre of kids bike12"x1.75, 14"×1.75,16"x1.95, 20"x1.75 ...