Rim Size	from 12" 16" 20"
Bike Frame	steel and painting, thicker argon-arc welding/CO2 welding
Bike Fork	steel and painting, co2 welding steel /suspension fork
Rim	12" 16" 20" steel alloy or aluminum
Handlebar and stem	CP, argon-arc welding Φ22X0.8-1.2mm
Tyre	12"x1.75, 16"x1.75, 20x1.75 or 1.95 2.125 air tires or EVA tire
Chain wheel & crank	12"24T×89/1628T×102/20"28T×127 CP/ED
Crank	CP or ED or UCP
Brake	F/R Caliper Brake or R band brake
Freewheel	16T/18T/20T Brown/Black/CP
Mudguard	steel, painting or CP
Chain	full chain or 9-form chain cover
Pedal	plastic, with reflector, without ball, PP/TPE/ALLOY
Saddle	good leather, common or spring /plastic/imitation leather/ plate PVC TOP
Grips	PVC/TPR/RUBBER FOAM
B.B parts	3pcs B.B axle B.B cup
Paint	3X/4X painting
Color	red, black, blue, green, yellow etc. any color you like
Attachments	bag, helmet, flag, the covers of the wheels, training wheels
Packing	export standard packing    SKD/CKD/AB    85%SKD/50%SKD 1PCS/CTN or 4PCS/CTN