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Quarq DFour Power Meter Chassis

$1,179.00

Designed for Shimano 11-speed groupsets and Dura-Ace® 9000 chainrings. Compatible with Ultegra® 6800 and 105® 5800 chainrings.

There is high demand for this product. New orders will ship during the week of April 1, 2017. We appreciate your patience and support.

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Product Description

Every innovation in Quarq’s next-generation DZero platform is channeled into the Shimano®-compatible DFour power meter. Designed for Shimano®’s lightweight, ergonomic Dura-Ace® groupset, DFour is Quarq’s most advanced Shimano®-compatible power meter ever. DFour embodies 10 years of Quarq technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and compatibility with BB386EVO bottom brackets.

The DFour power meter works with Shimano®’s 11-speed Dura-Ace® 9000, Ultegra® 6800 and 105® 5800 chainrings.

$1179 / €1029 / £968

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® 9000 chainrings. Compatible with Ultegra® 6800 and 105® 5800 chainrings.
  • Must be paired with a compatible SRAM bottom bracket.
  • Quarq ELSA RS Power Meter owners can upgrade using a DFour Power Meter Spider.
  • BB30 versions ship with the spacers and wave washer required for BB386EVO installation.

Additional Information

Bolt Circle Diameter

Shimano® 4-Arm

Compatibility

Shimano® 11-speed chainrings (except Dura-Ace® R9100). Designed for Dura-Ace® 9000. Compatible with Ultegra® 6800 and 105® 5800.

Material

CNC Machined Aluminum Spider, Exogram Carbon Crank Arms

Accuracy

1.5%

Bottom Bracket

GXP, Press Fit GXP, BB30, Press Fit 30, BBright, BB386EVO, BB30A, PF30A

Q Factor

145mm

Wireless Technology

ANT+, Bluetooth low energy technology

Battery

CR2032, 200 hours of riding time

Weight

588g