1.Size: From 12" to 20"
2. Bike Frame: Steel and painting, thicker argon-arc welding/CO2 welding
3. Bike Fork: Steel and painting, CO2 welding steel /suspension fork
4. Bike Rim: 12"-20" inch steel alloy or aluminum
5. Handlebar and stem: CP, argon-arc welding Φ 22X0.8-1.2mm
6. Tyre: 12"X1.75, 16"X1.75, 20X1.75 or 1.95 2.125 air tyre or EVA tyre
7. Chainwheel&crank: 12"24T× 89/1628T× 102/20"28T× 127 CP/ED
8. Crank: CP or ED or UCP
9. Brake: F/R Caliper Brake or R band brake
10. Flywheel: 16T/18T/20T Brown/Black/CP
11. Mudguard: Steel, painting or CP
12. Chain: Full chain or 9-form chain cover
13. Pedal: Plastic, with reflector, without ball, PP/TPE/ALLOY
14. Saddle: Good leather, common or spring /plastic/imitation leather/ plate PVC TOP
15. Grips: PVC/TPR/RUBBER FOAM
16. B. Bparts: 3PCS B. B axle B. B cup
17. Paint: 3X/4X painting
18. Color: Red, black, blue, green, yellow etc. Any color you like
