The Quarq DFour road power meter crankset lets you run your preferred Shimano chainrings while gaining accurate, real-time power data. Built around a SRAM DUB spindle and 110 BCD spider, this 172.5mm crankset gives you the versatility of Shimano chainring compatibility with the proven accuracy of Quarq's power measurement platform.

  • ±1.5% measurement accuracy for reliable training and racing data
  • 110 BCD spider compatible with Shimano road chainrings
  • 172.5mm crank arms for riders approximately 172–182cm
  • DUB spindle for use with SRAM DUB bottom brackets (sold separately)
  • ANT+ and Bluetooth Smart dual transmission — works with any head unit or training app
  • OmniCal auto-zeroing adapts to chainring changes without manual recalibration

The DFour platform uses strain gauges integrated into the spider body, capturing torque at the source for consistent accuracy across cadences, temperatures and power outputs. The CR2032 battery is user-replaceable and provides extended run time.

Requires a SRAM DUB bottom bracket (sold separately). Compatible with Shimano 110 BCD road chainrings. Suitable for 10, 11 and 12-speed drivetrains — verify chainring compatibility with your specific groupset.

SRAM warrants Quarq power meters for 2 years against manufacturing defects. Warranty claims for this product should be directed to Tune Cycles. Return the item to us with proof of purchase and we will manage the warranty process with the brand on your behalf.
  • Accurate power measurement with ±1.5% accuracy for data-driven road training and racing
  • Shimano chainring compatibility on a 110 BCD spider — use with a wide range of Shimano road chainrings
  • 172.5mm crank length suits riders from approximately 172–182cm
  • DUB spindle interface compatible with SRAM DUB bottom bracket systems
  • Dual ANT+ and Bluetooth Smart connects to Garmin, Wahoo, and all major training apps
  • Auto-zero calibration and OmniCal technology maintain accuracy across temperature ranges
SpecificationValue
Crank length172.5mm
BCD110 mm
Chainring compatibilityShimano 110 BCD road
Spindle interfaceSRAM DUB
Measurement accuracy±1.5%
CommunicationANT+, Bluetooth Smart
BatteryCR2032 coin cell
Bottom bracketNot included
SKU PSI-QU003018292172
Model # 003.018.292.172
Barcode # 710845859151
Brand Quarq

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