... ,JS standard, and stand up to the toughest w Our motorcycle chain meet or exceed DIN, ANSI,ISO,BS,JS standard, and ... relations with you in the near futureGeneral Standard for Roller Chain:ROLLERSolid RollerMaterial 1035,1045 or 1050Through harden with surface and ... 39-45HRCShot peening per the spec O-Ring X-Ring Motorcycle Chain