SRAM's Quarq power crankset is compatible with all of SRAM's road groupsets, and the cranks feature SRAM's integrated carbon crank arm and SRAM's proven RED chainrings. The Quarq is the lightweight leader for wireless power devices and instillation and battery change-outs are simple, plus ANT+ Wireless compatibility gives it the flexibility to sync with nearly any display unit.
Does not include bottom bracket, head unit, or training software
Uses SRAM's S900 carbon fiber crank arms and Red chainrings
Quarq CinQo spider with strain gauges provides +/- 2% accuracy
Wireless ANT+ technology is compatible with several Garmin power receiving/display units, as well as CycleOps
Joule and Specialized Speedzone Pro Calibration values are stored in the CinQo, no need to recalibrate if you change head unit
Coin-style battery (BA0124) is easily replaced, lasts about 500 riding hours