Quarq DFour Power Meter Crankset (Black) (GXP Spindle) (172.5mm) (110 BCD) (Shimano 4 Bolt)

Quarq DFour Power Meter Crankset (Black) (GXP Spindle) (172.5mm)
00.3018.171.172
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Price: $1,179.00
 
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The DFour power meter is a bolt-on upgrade for Shimano’s 11-speed Dura-Ace 9000, Ultegra 6800 and 105 5800 drivetrains. Every innovation in Quarq’s next-generation DZero platform is channeled into DFour. It 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.

Features:

  • Bluetooth low energy technology and ANT+ wireless data transfer.
  • AxCad - no magnet.
  • 10K Temperature Compensation.
  • Battery - CR2032, 200-hour battery life, change without tools.
  • OmniCal - swap chainrings without affecting accuracy.
  • 2-year warranty.
  • IPX7 waterproof rating.
  • Accuracy -- within 1.5%, measuring both legs.
  • Designed for Dura-Ace 9000 chainrings. Compatible with Ultegra 6800 and 105 5800 chainrings.
  • Must be paired with a compatible SRAM bottom bracket.
  • ELSA RS power meter owners can upgrade using the DFour Power Meter Spider.
  • Free firmware upgrades with the Qalvin BLE app.


Specifications:
Material:
CNC Machined Aluminum Spider, Exogram™ Carbon Crank Arms
Accuracy: 1.5%
Bolt Circle Diameter: 110 Asymmetric BCD
Arm Lengths: 162.5mm, 165mm, 170mm, 172.5mm, 175mm, 177.5mm
Q-Factor: 145mm
Bottom Bracket: GXP
Wireless Technology: ANT+, Bluetooth low energy technology
Battery: CR2032, 200 hours of riding time
Weight: 588g
Head Unit: ANT+™ and Bluetooth® low energy technology compatible head units (available separately)
Compatibility: Shimano® 11-speed chainrings (except for R9100). Designed for Dura-Ace® 9000. Compatible with Ultegra® 6800 and 105® 5800.