Quarq DFour91 11R-110 Power Meter Chassis

As low as £879.00

Designed for Shimano's Dura-Ace R9100 series, the Quarq DFour91 Power Meter brings Quarq’s next-generation DZero platform to Shimano’s latest groupset. Compatible with Ultegra R8000 chainrings.

DFour91 embodies 10 years of Quarq advances in power meter technology, plus new features such as dual Bluetooth Low Energy and ANT+ wireless data transfer, revised circuitry, a new strain gauge design and the Qalvin BLE App.

The DFour91 power meter is a bolt-on upgrade for the 11-speed Dura-Ace R9100 or Ultegra R8000 chainrings. The chassi includes Quarq’s lightweight, sturdy Exogram carbon crank arms. The GXP and BB30 versions work with every bottom bracket shell, including BBright and BB386EVO. If you already have a power meter using the 8-bolt interface, upgrade with the DFour91 Spider.

Features & Benefits

  • Exogram carbon crank arms.
  • Bluetooth low energy technology and ANT+ wireless data transfer.
  • AxCad – no cadence magnet required.
  • 10K Temperature Compensation.
  • Battery – CR2032, 200-hour battery life, change without tools.
  • Power Balance.
  • OmniCal – swap chainrings without affecting accuracy.
  • 2-year warranty.
  • IPX7 waterproof rating.
  • Accuracy – within 1.5%, measuring both legs.
  • Free firmware upgrades with the Qalvin app.

Essential Details

  • Designed for Dura-Ace® R9100 chainrings. Compatible with Ultegra® R8000 chainrings.
  • Must be paired with a compatible SRAM bottom bracket.
  • BB30 versions ship with the spacers and wave washer required for BB386EVO installation.

Specification Overview

More Information
Brand Quarq
Type Power Meter
Material Exogram Carbon
More Information
Eligible for cycle to work Not eligible
Primary Colour No
Type of Bolt No
Brand Quarq
Length No
Size No
Type Power Meter
Material Exogram Carbon
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