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. 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 isnt affected by temperature changes, and the consistent 13-tooth gap on the rings ensures fast and reliable shifting. Our integrated rings are also incredibly long-lasting. Plus were offering more crankarm lengths than ever before to ensure this crank works for you.SRAM Red AXS E1 Groupset ReviewFeatures29 g lighter than previous generationPower meter is fully integrated into the chainring for lighter weightPower readings are accurate within +/-1.5% and arent affected by climate conditions during a rideMeasures right and left