Highest tensile strength in its categoryGreatest durability in its categoryWidest applications in its categoryMAX-OPremium quality O-ring sealed chainAvailable in natural and gold520 for street bikes up to 750cc and tensile strength of 8.500 lbs525 for street bikes up to 900cc and tensile strength of 9.300 lbs530 for street bikes up to 1.000cc and tensile strength of 9.700 lbsMAX-XPremium RX-ring sealed chainAvailable in natural and goldAvailable in a wide range of applications520 for street bikes up to 1.000cc and tensile strength of 9.000 lbs525 for street bikes up to 1.100cc and tensile strength of 9.300 lbs530 for street bikes up to 1.100cc and tensile strength of 9.700 lbsMAX-ZPremium RX-ring sealed chain specially designed to handle the most powerful street machines on the market todayUnparalleled strength in its classAvailable in natural and gold520 for street bikes up to 1.200cc and tensile strength of 9.400 lbs525 for street bikes up to 1.300cc and tensile strength of 10.400 lbs530 for street bikes up to 1.400cc and tensile strength of 11.200 lbs