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 | OmniCal system allows you to swap chainrings without affecting accuracy | Use the AXS app to easily update firmware and view power meter metrics | Uses a CR2032 battery that can be replaced without tools | Measures power for both legs with +/- 1.5% accuracy | IPX7 waterproof rating
UPC: 710845839450