... 4 competitive price 5 wide in variety chain wheel and alloy rim for Motorcycle Customers' Trustworthy Supplier ... sprocket as follows:standard motorcycle chain wheel custom motorcycle chain wheel sprocketChain415,420,428,428H,520,530 ... ,Mid east , south America ,Southeast AsiaCertificateISO9001-2000 quailty system certificationRaw-materialsQ345B(45#), Q235B(A3#), 16Mn etcHeat treatmentHigh frequency ...