SRAM QUARQ DZero Power Meter for XX1 Eagle AXS DUB Description: SRAM Quarq Dzero power meter spider for use with XX1 Eagle DUB 8-bolt crankset and 104 BCD X-SYNC 2 chainrings. Experience educated training with assistance from the most accurate mountain power meter and the SRAM AXS app. Note: Not compatible with SRAM 3-bolt direct mount interface cranksets Features: 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 Specifications: Color: Black Spindle Interface: SRAM DUB Chainring BCD: 104mm Configuration: 1x