... rim,the thickness is 0.95mm,the size is from 12" to 20",the rim treatment is UCP,CP,ED.10.Brake: ... .5mm,3.0mm or 3.5mm.the treatment is ED,CP,UCP.11.Freewheel:12"-16T,16"-16T,20"-18T ... Kickstand: Φ8.5 ,treatment is ED.16.Handle bar and handle stem:the treatment is CP,argon-arc welding or CO2 welding ... .the thickness is 0.8mm-1.2mm17.B. ...