When SRAM found ways to make their lightest and stiffest crank even lighter they went for it. A new optimized layup drops 29g from the hollow carbon arms. The X-Range gearing technology minimizes cadence changes during front shifts maximizing your ability to put power down. Plus they're offering more crankarm lengths than ever before to ensure this crank works for you.One-piece 2x chainring results in a lighter weight stiffer more durable crankset29g lighter than the previous generationX-Range gearing technology gives you more range and a smoother gear progression so you’re always in the right gearDesigned to deliver crisp and accurate front shiftsUltra-light hollow carbon fiber crankarms DUB bottom bracket adds durability and simplicity (DUB bottom bracket sold separately)Can be upgraded to a power meter set up (Power Meter chainring sold separately)45mm Chainline Rings 46/33, 48/35, 50/37 Number of Chainrings Double Drivetrain Speeds 12 Chainring BCD Direct Mount SRAM Chainline/Hub Compatibility 135/142 Road Disc Hubs < 415 mm Chainstay Color Natural Carbon Crank Length (mm) 160, 165, 167.5, 170, 172.5, 175 Crank Intended Use Road BB Included No Pedal Spindle 9/16" Spindle Interface Type SRAM DUB Defined Color Carbon
