DescriptionShimano Deore XT FC-M8100-1 Crankset – 175mm 12-Speed 1x Direct Mount Hollowtech II Spindle Interface Black. The Shimano Deore XT FC-M8100-1 crankset for MTB offers the simplicity of a 1x drivetrain with the stability and compatibility of Hollowtech II technology.Chainring sold separatelyHollow forged crank maximizes power transfer while limiting weightShimano’s Hollowtech II technology provides the best balance of stiffness strength weight and rotating performanceFeatures 52mm chainline172mm Q-factor TECH SPECSBB IncludedNoChainline/Hub Compatibility141/148 Boost HubsChainring BCDDirect MountColorBlackCrank Intended UseMountainCrank Length (mm)175Defined ColorBlackDrivetrain Speeds12Number of ChainringsNo Rings IncludedPedal Spindle9/16″Spindle Interface TypeShimano Hollowtech IIkeyword searchFC-M8100-1