It’s the best tool to help you reach your best. The choice of Sram's top professionals, lightest, stiffest, and most accurate integrated power meter and chainring combo just got lighter with a new carbon crankarm construction. The SRAM power meter is accurate to +/-1.5% and isn’t affected by temperature changes, and the consistent 13-tooth gap on the rings ensures fast and reliable shifting. Not just unbeatable on performance, the integrated rings are also incredibly long-lasting. Plus Sram's offering more crankarm lengths than ever before to ensure this crank works for you.

• 29 g lighter than previous generation
• Power meter is fully integrated into the chainring for lighter weight
• Power readings are accurate within +/-1.5% and aren’t affected by climate conditions during a ride
• Measures right and left leg power balance
• 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
• DUB bottom bracket adds durability and simplicity
• 50/37T, 48/35T and 46/33T chainring combos available
• Available in 160, 165, 167.5, 170, 172.5, and 175 mm lengths