SRAM XX1 Eagle Boost 148mm Quarq PowerMeter Crank Spider Assembly 8- Bolt Attachment. 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.
This 8-bolt Eagle Power Meter Spider is compatible with existing Quarq XX1 Power Meters (8-Bolt used since Aug ’14)
Not compatible with DUB cranksets
Requires an X-SYNC 2 or X-SYNC 104 BCD chainring
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
Uses a CR2032 battery that can be replaced without tools
Swap chainrings without needing to recalibrate
Color | Black |
Chainring BCD | 104 |