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.Features:X-Range™ gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear,Crisp and accurate front shifts,Wide 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 brands,Requires Force wide front derailleur,DUB™ bottom bracket adds durability and simplicity.SPECIFICATIONSSpeeds: 12,BB Compatibility: All SRAM Road DUB BBs,Chainring Size: 43/30,Crank arm length: 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm,Chainline: 47.5mm,BB Spindle Interface: DUB,Chainring material: Aluminum,Guard: No Guard,Bolt Circle Diameter (BCD): 94 BCD,Crank arm material: Carbon,Color (Crank arm): Natural carbon.