... not rust.3) Tube size:diameter 25.4mm,Thickness(1.2mm,1.5mm,1.8mm,2.1mm).4) Thickness tolerance of steel pipe ... ,BY AIR.11) Appications: our parts are fit for the motorcycle model:AX100,CG125,WY125,GS125,CD110,DY100,GN125,GBT125.SJ110,FD110 ... got your 30% deposit.17) High bearing capacity.18) Cooperate with famous motorcycle company, such as LiFan,JianShe,Xinyuan,ZongShen,Longxin,Suzuki ...