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Quarq Launches Two New DZero-based Power Meters

Quarq has extended its next-generation DZero power meter platform, adding a spider for Specialized’s S-Works carbon crankset and chassis for Shimano®’s Dura-Ace® R9100 chainrings.

Quarq DZero for Specialized and Quarq DFour91 will be available through Quarq distributors and dealers worldwide beginning July 25, 2017.

Both new power meters embody 10 years of Quarq advances in power meter technology, plus features such as dual Bluetooth low energy and ANT+ wireless data transfer, Quarq’s latest measurement circuit, and the Qalvin BLE app. Riders also get AxCad accelerometer cadence, the easy-to-replace CR2032 battery, an IPX7 waterproof rating and a 2-year warranty.

With the introduction of DZero for Specialized and the new DFour91 Power Meter for Shimano®’s Dura-Ace® R9100 series, Quarq extends its DZero platform to seven power meters.

Shimano® riders can get the DFour91 chassis, which includes Quarq’s lightweight, sturdy ExogramTM carbon crank arms. The GXP and BB30 variants work with every bottom bracket shell, including BBright and BB386EVO. If riders already have an 8-bolt Quarq power meter, they can upgrade with the DFour91 spider only.

The DZero platform includes:

  • Dual Bluetooth low energy technology and ANT+ wireless data transfer.
  • AxCad – no cadence magnet required.
  • 10K Temperature Compensation.
  • CR2032 battery – 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.

DZero for Specialized and DFour91 are manufactured at Quarq’s ISO 9001-certified facility in Spearfish (USA), where Quarq Power Meters, ShockWiz and Qollector are made.