Every part of RED has been refined to create an effortless ride. Light brake feel and comfortable ergonomics, smooth front shifting, fully wireless connectivity, and expanded gearing choices fit every rider and their needs. Our lightest, stiffest, and most accurate integrated power meter just got lighter with a new carbon crankarm construction. Our power meter is accurate to +/-1.5% and isnt affected by temperature changes, and the direct mount X-SYNC chainring is aero and incredibly long-lasting. Plus were offering more crank arm lengths than ever before to ensure this crank works for you.SRAM Red AXS E1 Groupset ReviewFeaturesPower meter is fully integrated into the chainring for lighter weight and greater accuracyPower readings are accurate within +/-1.5% and arent affected by climate conditions during a rideMeasures right and left leg power balanceUltra-light hollow carbon fiber crankarms are 29 g lighter than previous generationDUB bottom bracket adds durability