Detailed Product Description kids bicycleChildren bicycle, kids bicycle, baby bicycle1. bicycle frame: steel, co2 welding, size: 12141618202. children bike rim: 12 inch steel CP3. children bicycle mudguard: plastic or steel4. tyre: 12 inch air tyre5. chain: full chain6. handlebar: steel CP7. brake: sets f/r caliper, black cable cp, break lever plastic with black color8. pedal: without ball, ...