SRAM / Quarq DFour AXS DUB Power Meter Spider 110 BCD

Quarq DFour AXS DUB Power Meter Spider combines the advanced power meter technology with SRAM’s innovative DUB platform to bring you a simple spider-based power meter. Spider must be paired with a compatible Quarq DZero DUB crankset with an 8-bolt interface and SRAM DUB bottom bracket Not compatible with SRAM's 3-bolt direct mount interface DFour DUB is designed for Dura-Ace R9100 chainrings 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  Have questions? Need help with sizing & fit? Don't hesitate to get in touch.