SRAM Red E1 AXS DM chainring with power meter

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 Specifications: - Speeds: 12 - BB Compatibility: All SRAM Road DUB BBs - Chainring Size: 46/33T - Bolt Circle Diameter (BCD): Direct Mount (DM) - BB Spindle Interface: DUB - Chainring material: Aluminum - Power Meter Type: Ant USB