Featuring forged aluminum arms and SRAM's game changing X-Sync chainrings, this crankset hits the sweet spot between weight, durability and performance.X-SYNC Chainrings are compatible with SRAM 11 and 10 speed chains45.5mm chainline is compatible with 130 or 135mm spaced rear dropoutsChainring spider is removableQ-factor for GXP cranks is 149.6mm, Q-factor for BB30 is 147.4mmItem SpecificationsBB IncludedNoChainline/Hub Compatibility130 HubsChainline/Hub Compatibility135/142 Road Disc Hubs < 415 mm ChainstayChainring BCD110ColorBlackCrank Intended UseCyclocrossCrank Length (mm)172.5Defined ColorBlackDrivetrain Speeds10Drivetrain Speeds11keyword searchCX1Number of ChainringsChain Retaining SinglePedal Spindle9/16"Rings42Spindle Interface TypeSRAM/Truvativ GXP SRAM Rival 1 Crankset Crankset UPC: 710845770234