SRAM Power Meter Kit Direct Mount Red AXS E1
It’s the ultimate in integrated power measurement. The RED AXS power meter kit adds Quarq technology to our one-piece chainrings for the lightest, stiffest, and most accurate power package available. A 13-tooth delta on all chainring pairs ensures precise shifting for any setup, as well as a less dramatic change in cadence during front shifts. Combined with our most durable chainrings ever, it’s an unbeatable combination. Features - X-Range gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear - 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 - Crisp and accurate front shifts - Unique chainring shape results in a lighter weight, stiffer, more durable unit - Available in 46/33T, 48/35T, 50/37T, 52/39T, 54/41T, and 56/43T chainring combos