The choice of SRAM’s top professionals their 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 isnt affected by temperature changes and the consistent 13-tooth gap on the rings ensures fast and reliable shifting. SRAM’s integrated rings are also incredibly long-lasting. Plus they’re offering more crankarm lengths than ever before to ensure this crank works for you.