... -arc welding/CO2 welding3. Bike Fork: steel and painting, co2 welding steel /suspension fork4. Rim: 12" 16" 20" steel alloy or aluminum5. Handlebar ... . Chain: full chain or 9-form chain cover13. Pedal: plastic, with reflector, without ball, PP/TPE/ALLOY14. Saddle: good leather, common ... you are interested in our goods,you can feel contact with us,we shall be glad to supply our best price ...