CHAINRING SRAM RED AXS E1 POWERMETER 48/35 DM BK/SL

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
3-tooth delta on all chainring pairs ensures precise shifting for any setup, as well as a less dramatic change in cadence during front shifts
X-Range gearing technology gives you more range and a smoother gear progression, so you???re always in the right gear
Power readings are accurate within +/-1.5% and aren???t affected by climate conditions during a ride
Unique chainring shape results in a lighter weight, stiffer, more durable unit
Power meter is fully integrated into the chainring for lighter weight
Measures right and left leg power balance
Crisp and accurate front shifts