Sram: Riders want more range and closer steps between gears—and that's the driving design principle of the SRAM Force® crankset. It offers smaller chainrings with a consistent 13-tooth gap between size variants, delivering smooth, accurate and dependable shifting for the modern rider. Always find the sweet spot.FEATURESX-Range™ gearing technology gives you more range and a smoother gear progression, so you’re always in the right gearCrisp and accurate front shiftsDUB™ bottom bracket adds durability and simplicityCan be upgraded to a power meter SPECIFICATIONSSpeeds: 12BB Compatibility: All SRAM Road DUB BBsChainring Size: 46-33t, 48/35TCrank arm length: 165mm, 167.5mm, 170mm, 172.5mm, 175mmChainline: 45.0mmBB Spindle Interface: DUBChainring material: AluminumGuard: No GuardBolt Circle Diameter (BCD): 107 BCDCrank arm material: CarbonColor (Crank arm): Natural carbon