Parts & Accessories

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