Childrenbicycle,childrenbike,Kid'sbicycle,Kid'sbike 1.Size:from12"to20" 2.Bikeframe:steelandpainting,thickerardon-arcwelding 3.Bikefork:steelandpainting,Co2weldingsteel 4.Bikerim:12"to20"steelalloyoraluminum 5.Handlebarandstem:CP,argon-arcwelding 6:Tyre:12"×1.75,16"×1.75,20"×1.75etc. 7.Chainwheelandcrank:12":24T×89,16":28T×102,20":28T×127CP/ED 8:Crank:CO/ED/UCP 9:Brake:F/RCaliperBrakeorRbandbrake 10:Flywheel:16T,18T,20T,Brwon/Black/CP 11:Mudguard:Steel,paintingorCP 12:Chain:fullchainor9formchaincover 13:Pedal:Plastic,withreflector,withballorwithoutball,PP/TPE/ALLOY 14:Saddle:goodleather,commonorspring/plastic/imitationleather/platePVCTOP 15:Grips:PVC/RUBBERROME 16:B.BParts:Steel 17:Color:Red,Blue,Green,Yellowetc.whatevercoloryoulike 18:Packing:ExportingStandardpacking85%SKD/50%SKD,1PCS/CTN Others:Populardesign,excellentquality,competitiveprice,stickerisdesignedprofessionally