- Quarq Dzero XX1 Boost power meter spider must be paired with a XX1 Eagle DUB 8-bolt crankset and a 104 BCD X-SYNC 2 chainring
- Not compatible with SRAM's 3-bolt direct mount interface
- Bluetooth low energy technology and ANT+ wireless data transfer
- MagicZero technology automatically checks and recalibrates your power meter as you ride, no need to manually calibrate
- AxCad system provides no-magnet cadence data
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