Shimano xt rt76 6 bolt disc rotorsmrt76 rotors give excellent performance using the 6 bolt mounting system rotor contact surface has been developed for excellent pad clearing and cooling which increases pad performance and life featuresprecision cut stainless steel braking surface improves pad clearing in muddy conditions while aiding cooling under high loadlarge forged alloy spider supports rotor surface increasing rigidity and reducing weightcomes complete with mounting hardwaremount 6 bol