The SRAM S100 Eagle Crankset provides confidence with a robust aluminum crankset. A sturdy steel X-Sync 2 chainring ensures the same chain retention performance as all other Eagle drivetrain cranksets. Requires PowerSpline bottom bracket (Sold separately)Aluminum crank arms with 3-bolt steel X-Sync 2 chainring for Eagle Drivetrain Ecosystem compatibilitySturdy steel X-Sync 2 chainring ensures the same chain retention performance as all other Eagle drivetrain cranksetsRequires 118/73 Powerspline Bottom Brackets (sold separately)Item SpecificationsBB IncludedNoChainline/Hub Compatibility135/142 MTB HubsChainring BCDDirect Mount SRAM 3-BoltColorBlackCrank Intended UseMountainCrank Length (mm)155Defined ColorBlackDrivetrain Speeds12Number of ChainringsChain Retaining SinglePedal Spindle9/16"Rings32Spindle Interface TypeTruVativ Power Spline SRAM S100 Eagle Crankset Crankset UPC: 710845928222