1. Rim Size: from 12"
2. Bike Frame: steel and painting
3. Bike Fork: steel and painting
4. Rim: 12" steel
5. Handlebar and stem: ED
6. Tyre: 12 x1.75 or EVA tire
7. Chain wheel & crank: 12"24T CP/ED
8. Crank: CP or ED or UCP
9. Brake: F/R Caliper Brake or R band brake