1. Rim Size: From 12" 16"18" 20"
2. Bike frame: Steel and painting,
3. Bike Fork: Steel and painting, argon-arc welding
4. Rim: 12" 16"18" 20" steel alloy or aluminum or plastic
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 tires or EVA tire
7. Chain wheel & crank: 12"28T× 102/16"28T× 110/20"28T× 127 CP/ED
8. Crank: CP or ED or UCP
9. Brake: F/R Caliper Brake or R band brake
10. Freewheel: 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
19. Attachments: Bag, helmet, flag, the covers of the wheels, training wheels
20. Packing: Export standard packing SKD/CKD/DKD/AB 85%SKD/50%SKD 1PCS/CTN or 4PCS/CTN