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Built specifically for SRAM's popular RED groupset, the SRAM RED DZero Power Meter embodies 10 years of Quarq's technology advances and adds new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and compatibility with BB386EVO bottom brackets.

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  • 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.
  • Works with SRAM 11-speed drivetrains and the SRAM RED 10-speed drivetrain.
  • Compatible SRAM chainrings ensure the chain derailment pin aligns with the crank arm.
  • Free firmware upgrades with the Qalvin app.
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Speeds n/a
Crank arm length 162.5mm, 165mm, 170mm, 172.5mm, 175mm, 177.5mm
BB Compatibility BB386, GXP/PF GXP 68mm
Chainring Size n/a
Bolt Circle Diameter (BCD) 110 BCD, 130 BCD
Chainline 45.0mm
BB Spindle Interface 24mm, 30mm
Color (Crank arm) Black