Motorcycle sprocket is standard steel sprocket Optimal quality, durable in use We pass ISO9001 Quality system certificate ... XL125.....420,428,520,428H, 525, 530 etcMaterial1045 steel, 1023 steel and 16MnSurface-finishingSandblasting, Dull polish, Galvanized, with the ... Europe, Worldwide…In addition: we have passed the ISO 9001 Quality system certificate.We can offer: OEM Service Offered Design Service ...