SRAM Red/Force AXS Aero DM chainring with power meter

POWERMETER KIT DM 48T RED/FORCE AXS D1 AERO BLACK (POWERMETER INCLUDING CHAINRING) Features: - AXS™ enabled for easy monitoring and firmware upgrades - Single-ring drivetrain simplifies functionality - Fully integrated power meter into a direct mount aero chainring - 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 - SRAM X-SYNC™ wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - 8-bolt direct mount compatibility only to new RED® and Force eTap AXS™ cranks. Specifications: - Speeds:12 - Crank arm length:n/a - BB Compatibility: n/a - Chainring Size :48 - 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