SRAM Red AXS D1 12s chainring with power meter

Features: - AXS™ enabled for easy monitoring and firmware upgrades - X-Range™ gearing technology gives you more range and a smoother gear progression, so you´re always in the right gear - Integrated power measurement - Power meter is fully integrated into the chainring set for lighter weight - Power readings are accurate within +/-1.5% and aren´t affected by climate conditions during a ride - Power balance measures left and right legs separately - Improved front shifting performance for crisp and accurate front shifts - Unique chainring shape results in a lighter weight, stiffer, more durable crankset - Integrated chainring design significantly reduces weight - 8-bolt direct mount compatibility only to new RED® and Force eTap AXS™ cranks. - Not reverse compatible with prior 8-bolt cranks Specifications: - Speeds: 12 - Crank arm length: n/a - BB Compatibility: n/a - Chainring Size: 46/33, 48/35, 50/37 - Bolt Circle Diameter (BCD): Direct Mount (DM) - Chainline: n/a - BB Spindle Interface: n/a - Chainring material: Aluminum - Guard: n/a - Crank arm material: n/a - Power Meter Type: Ant USB