SRAM XX1 Eagle Quarq Power Meter Boost 148mm Crank Spider Assembly

SRAM's power meter technology is reliable, accurate and easy to use. Now available as a spider by itself as an easy upgrade for existing cranks. The Dzero series offers improved data transfer and frame fit compatibility.

- Fits 8-Bolt interface Quarq XX1 Power Meters (8-Bolt used since Aug '14)
- Measures power for both legs with +/- 1.5% accuracy
- Dual Bluetooth lowenergy and ANT+ wireless data transfer
- AxCad system provides no-magnet cadence data
- Free firmware updates with the QALVIN APP
- Boost 148 compatible