Quarq DFour AXS DUB Power Meter Spider - 110 BCD, 8-Bolt Crank

Quarq DFour AXS DUB Power Meter Spider combines the advanced power meter technology with innovative DUB platform to bring you a simple spider-based power meter.

• Simplified part choices, quality materials and a broader compatibility for bottom brackets and chainrings, brings power on every ride
• DFour DUB is designed for Dura-Ace R9100 chainrings
• Spider must be paired with a compatible Quarq DZero DUB crankset and DUB bottom bracket
• 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
• Use the AXS app to easily update firmware and view power meter metrics
• Measures power for both legs with +/- 1.5% accuracy
• Uses a CR2032 battery that can be replaced without tools
• OmniCal system allows you to swap chainrings without affecting accuracy
• IPX7 waterproof rating