1. Size: From 12" 14" 16" 18" 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× 89/16"28T× 102/20"28T× 127 CP/ED or OPC CRANK
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. 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/AB 85%SKD/50%SKD 1PCS/CTN or 4PCS/CTN.

The quantity in one 40HQ container for other sizes:
12" 73*19*38 1x40HQ 1300sets 9/7KG(G. W/N. W)
16" 87*19*44 1x40HQ 1000sets 11/9KG(G. W/N. W)
20" 108*19*58 1x40HQ 670sets 13/11KG(G. W/N. W).