Children bicycle
1. Rim Size: From 12" 14" 16"
2. Bike frame: Steel and painting, thicker argon-arc welding/CO2 welding
3. Bike Fork: Steel and painting, co2 welding steel/suspension fork
4. Rim: 12" 16" 20" steel alloy or aluminum
5. Handlebar and stem: CP, argon-arc welding 22*0.8-1.2mm
6. Tyre: 12"*1.75, 16"*1.75, 20*1.75 or 1.95 2.125 air tires or EVA tire
7. Chain wheel & crank: 12"24T*89/1628T*102/20"28T*127 CP/ED
8. Crank: CP or ED or UCP