428 Motorcycle Timing Chain Our motorcycle chain meet or exceed DIN, ANSI,ISO,BS,JS standard, and ... stand up to the toughest work Our motorcycle chain meet or exceed DIN, ANSI,ISO,BS,JS standard, ... with you in the near future General Standard for Roller Chain: ROLLER Solid Roller Material 1035,1045 or 1050 Through ... and core 39-45HRC Shot peening per the spec 428 Motorcycle Timing Chain