儿童的自行车

children bicycle&kid's bike detail:1. Rim Size: from 12" 16" 20"2. Bike Frame: steel and painting, thicker argon-arc welding/CO2 welding3. Bike Fork: steel and painting, co2 welding steel /suspension fork4. Rim: 12" 16" 20" steel alloy or aluminum5. Handlebar and stem: CP, argon-arc welding Φ22X0.8-1.2mm6. Tyre: 12"x1.75, 16"x1.75, 20x1.75 or 1.95 2.125 air tires or EVA tire7. Chain wheel & crank: 12"24T×89/1628T×102/20"28T×127 CP/ED8. Crank: CP or ED or UCP9. Brake: F/R Caliper Brake or R band brake10. Freewheel: 16T/18T/20T Brown/Black/CP11. Mudguard: steel, painting or CP12. Chain: full chain or 9-form chain cover13. Pedal: plastic, with reflector, without ball, PP/TPE/ALLOY14. Saddle: good leather, common or spring /plastic/imitation leather/ plate PVC TOP15. Grips: PVC/TPR/RUBBER FOAM16. B.Bparts:3pcs B.B axle B.B cup17. Paint: 3X/4X painting18. Color: red, black, blue, green, yellow etc. any color you like19. Attachments: bag, helmet, flag, the covers of the wheels, training wheels20. Packing: export standard packing