Sram: It’s the ultimate in integrated power measurement. The Force 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.FEATURESX-Range gearing technology gives you more range and a smoother gear progression, so you’re always in the right gearPower meter is fully integrated into the chainring set for lighter weightPower readings are accurate within +/-1.5% and aren’t affected by climate conditions during a rideMeasures right and left leg power balanceCrisp and accurate front shiftsUnique chainring shape results in a lighter weight, stiffer, more durable unit SPECIFICATIONSSpeeds: 12Crank arm length: n/aBB Compatibility: n/aChainring Size: 46/33T, 48/35T, 50/37TBolt Circle Diameter (BCD): Direct Mount (DM)Chainline: n/aBB Spindle Interface: n/aChainring material: AluminumGuard: n/aCrank arm material: n/aColor (Crank arm): n/aPower Meter Type: SpiderHub Spacing Compatibility: n/a