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QUARQ AXS DFour DUB Power Meter Spider - 110 BCD

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Description of QUARQ AXS DFour DUB Power Meter Spider - 110 BCD

Every innovation in Quarq’s next-generation DZero platform is channeled into DFour. The power meter platform combines 10 years of technology advances with latest features such as wireless Dual Bluetooth Low Energy and ANT+ data transfer as well as the compatibilit to the Qalvin BLE app.

When Quarq set out to build the DFour, they wanted to build the best-performing power meter for every facet of cycling, and for riders at every level. Like its Quarq brethren, the new DFour measures power in the heart of the bicycle - the crankset spider, scientifically proven to be the place for the most accurate measurement.


  • designed for use with Shimano Dura Ace R9100 chainrings
  • also compatible to Shimano Ultegra R8000 and 105 R7000 chainrings
  • only compatible to Quarq DZero DUB cranks and SRAM DUB bottom brackets

Features and technical details of the power meter

  • 10K temperature compensation
  • MagicZero™ – automatic calibration
  • AxCad accelerometer for cadence measuring (no magnet required)
  • OmniCal - swap chainrings without affecting accuracy
  • accuracy: within 1.5%, measuring on both sides
  • Bluetooth low energy technology and ANT+ wireless data transfer
  • battery: CR2032, 200-hour battery life, change without tools
  • IPX7 waterproof rating

Technologies of the Quarq AXS DFour DUB spider


Automatic calibration as you ride. No need to back pedal or manually calibrate through your headunit.

10K temperature compensation

Eliminates variables caused by heat and cold to provide an unwavering record of your performance through all conditions.

Built to last

An IPX7 waterproof rating, an easy-to replace CR2032 battery, a 2-year warranty, free firmware updates and acclaimed worldwide support.

Easy to use (and reuse)

Manual and automatic zeroing make Quarq power meters truly set and forget. The chainrings are replaceable should your bike, discipline or ability change.

Qalvin BLE with Bluetooth®

For iOS and Android. With any phone you can set zero offset, check battery, run diagnostics and update firmware. Free.
Included in delivery: 1 spider without chainring
Material: Aluminium
Weight supplement: manufacturer's specs
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Fact Sheet of QUARQ AXS DFour DUB Power Meter Spider - 110 BCD

Product Name: QUARQ AXS DFour DUB Power Meter Spider - 110 BCD
Manufacturer: QUARQ
Item Code: QRQ444069
activity: Bike
usage bikesport: Road Bike
shifting system: 10-speed, 11-speed
bottom bracket axle profile: SRAM DUB
direct mount standard: SRAM Road
Road - bolt circle diameter: 110mm
chainring mount: 2-speed
crank accessories: Spider
crank special features: Power Meter
Model year: 2021
Color: Black
weight: 165g
manufacturer item code: 00.3018.268.002
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