Quarq · Cycling

DFOUR DUB Road Power Meter Crankset

Name: DFOUR DUB Road Power Meter Crankset
Brand: Quarq
Price: 619.60 CAD
Availability: InStock

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About this product

The Quarq DFOUR DUB Road Power Meter Crankset is engineered for cyclists who want precise power data without sacrificing drivetrain compatibility. Designed specifically to work with Shimano Dura-Ace R9100 chainrings, it pairs with SRAM's DUB bottom bracket standard, making it adaptable across a wide range of bottom bracket shell formats. Power measurement accuracy is rated at plus or minus 1.5 percent, providing reliable data for structured training and performance analysis. The crankset features MagicZero automatic calibration, which removes the need for manual zero-offset adjustments before rides, and 10K temperature compensation to maintain consistent readings across varying conditions. Data is transmitted via both Bluetooth and ANT+ protocols, ensuring broad compatibility with cycling head units and GPS computers. It also connects to the SRAM AXS mobile app for firmware updates and additional configuration. This crankset suits road riders seeking a clean, integrated power solution built around a proven spindle standard.

Category: Cycling
Brand: Quarq

What people are saying

Reviewers consistently praise the Quarq DFOUR DUB for its reliable accuracy (within plus or minus 1.5%), fuss-free day-to-day use, and the convenience of MagicZero automatic calibration, which eliminates the need for manual zero offsets before rides. The dual ANT+ and Bluetooth connectivity, long 200-hour battery life on a single CR2032, and IPX7 waterproofing are frequently highlighted as strong practical advantages. Installation is generally considered straightforward once the DUB bottom bracket is in place. The most common criticism is that the left/right power balance data is estimated rather than directly measured, making it unreliable for single-leg drills or athletes who need true dual-sided data. Some users also note that switching to a DUB bottom bracket adds cost and complexity, especially for riders with multiple bikes.