Sram Red E1 Axs Dm Chainring With Power Meter Black,Silver 52/39t

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 unitSpecifications:- Speeds: 12- BB Compatibility: All SRAM Road DUB BBs- Chainring Size: 46/33T- Bolt Circle Diameter (BCD):