It’s the best tool to help you reach your best. The choice of our top professionals our 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 our integrated rings are also incredibly long-lasting. Plus we’re 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
