... competitive price 5 wide in variety chain wheel and alloy rim for Motorcycle Customers' Trustworthy Supplier◊◊◊QUICK DETAIL ... rear sprocket as follows:standard motorcycle chain wheel custom motorcycle chain wheel sprocketChain415,420,428,428H,520 ... Mid east , south America ,Southeast AsiaCertificateISO9001-2000 quailty system certificationRaw-materialsQ345B(45#), Q235B(A3#), 16Mn etcHeat treatmentHigh ...