DFour AXS DUB

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• Combine any length Quarq DUB crank arm with DFour DUB power meter for Shimano® R9100 11-Speed groupset. • Designed for R9100 chainring. Compatible but not aesthetically pleasing with Shimano’s R8000 chainrings and Shimano's R700 chainrings. • Magic Zero: Automatically check and recalibrates your power meter to ensure it is always accurate. • AXS™ app: Easily update firmware and view power meter metrics. • OmniCal: Swap chainrings without affecting accuracy. • 10K TEMPERATURE COMPENSATION: Each power meter is programmed with over 10,000 data points to eliminate temperature effects on power measurement. • For use with Red D1, Force D1, or Quarq D1 crank arms • SRAM Model ID: PM-D4-SPDR-D1 Show more