Sram: Go further with the SRAM Force® 43/30 wide crankset. Its 43/30 chainrings encourage exploring the most challenging routes on the newest crop of versatile and fun drop bar bikes. Shifting is smooth, accurate, and dependable using our proven X-Range™ gearing based around a tight 13-tooth difference between the small and big rings. The wider stance of the chainrings provides clearance for extra wide tires, giving you the option to explore new, more challenging routes.FEATURESX-Range™ gearing technology gives you more range and a smoother gear progression, so you’re always in the right gearCrisp and accurate front shiftsWide chainline crankset for bikes with up to 700x45c or 27.5x2.1” tire widths (43/30 chainrings only)Longer DUB crank spindle accommodates both Road and MTB width frame bottom bracket standards for unmatched cross-compatibility across brandsRequires Force wide front derailleurDUB™ bottom bracket adds durability and simplicity SPECIFICATIONSSpeeds: 12BB Compatibility: All SRAM Road DUB BBsChainring Size: 43/30Crank arm length: 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mmChainline: 47.5mmBB Spindle Interface: DUBChainring material: AluminumGuard: No GuardBolt Circle Diameter (BCD): 94 BCDCrank arm material: CarbonColor (Crank arm): Natural carbon