X-Range™: Smoother and faster shifting is now possible through SRAM RED®, their crankset leverages a pivotal design innovation: smaller chainrings and a wider cassette range. Get faster access to more useful gearing for today’s riders. The new configurations improve cadence and efficiency, while also delivering shifts that are crisp, clean and quick—every time.
DUB™ The relationship between the bottom bracket spindle and bearing is the core of DUB™ technology. It’s where stiffness meets durability. SRAM took it a step beyond conventional thinking and made everything simpler—and better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this clear system approach that equals better drivetrain performance.

• X-Range™ gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear • Improved front shifting performance for crisp and accurate front shifts • Unique chainring design results in a lighter weight, stiffer, more durable crankset • DUB™ bottom bracket adds durability, simplicity and broad compatibility • Power upgradeable
Specs • Speeds: 12 • BB Compatibility: All SRAM Road DUB™ BBs (Not included) • Chainring Size: 46/33, 48/35, 50/37 • Crank Arm Length: 170mm, 172.5mm, 175mm • Chainline: 45.0mm • BB Spindle Interface: DUB™ • Chainring Material: Aluminum • Bolt Circle Diameter (BCD): 107 BCD, Direct Mount • Crank Arms Material: Carbon