Quarq DFour DUB Power Meter Crankset

Quarq DFour DUB Power Meter

The Quarq DFour DUB Power Meter is designed for users of a Shimano crankset that want to step-up their game and start training with power! Featuring a 110 BCD, 4-bolt configuration, the DFour accepts all Shimano road chainrings. However, it is ideally suited for DURA-ACE 9100 rings specifically (for cosmetic purposes). This power meter benefits from over 10 years of Quarq’s experience in power meter technology. Therefore, it is accurate, durable and consistent in all conditions. It also has features such as MagicZero (automatically offsets) and 10K Temperature compensation (stays accurate regardless of temperature changes).

The DZero platform is now combined with SRAM’s new DUB technology. This means easy part choices, quality materials and a broader selection for bottom brackets and chainrings. The power meter runs for 200 hours on a single CR2032 battery and comes with a full 2-year warranty.

 

Key Product DetailsCompatibility:

This power meter fits SRAM RED, SRAM Force and Quarq DZero 8-bolt crank arms. It fits both the DUB or GXP versions. It ships with Quarq DZero crank arms unless otherwise specified. Regarding chainrings, it is designed for Shimano DURA-ACE 9100 chainrings. Shimano Ultegra R8000, 105 R7000 and Carbon-Ti X-CarboRing EVO Shimano 9100 rings will also work, however they will not match the shape or color of the power meter as nicely.

Power Measurement:

The Quarq power meter measures power at the spider and is therefore able to measure power from both legs.

Key Features:

Dual-leg power measurement, accurate to +/- 1.5%, lightweight carbon crank arms, 200 hours of battery life, CR2032 user-replaceable battery, ANT+ and Bluetooth compatibility, auto-zero (automatic calibration).

Advice From Our Staff:

We are big fans of Quarq power meters. They benefit from close to 15 years of Quarq’s experience in power meter technology. It measures power from both legs, is accurate and reasonably priced. Please note, it requires the use of a SRAM DUB bottom bracket.

Options

You can purchase the power meter with or without crank arms. Available crank arm sizes are:

• 165 mm | 167.5 mm | 170 mm | 172.5 mm | 175 mm

 

Compatibility

Crank arms: You must pair the Quarq DFour DUB Power Meter spider with Quarq DZero DUB crank arms and a SRAM DUB bottom bracket.

Chainrings: The power meter is designed for use with Shimano DURA-ACE 9100 chainrings. Shimano Ultegra R8000 and 105 R7000 rings will also work, however they will not match the shape or color of the power meter as nicely.

In the Box

• Quarq DFour DUB Power Meter
• Quarq DZero DUB Crank Arms
• CR2032 Battery
• Quick Start guide

 

SpecsNameQuarq DFour DUB Power MeterBike TypeRoadLocation of Power MeasurementSpiderLeft or Both Legs MeasuredBothIndependent Left/Right MeasurementPower BalanceInstallationMore involved (60 min. estimated)Communication ProtocolANT+ and Bluetooth SMARTClaimed Accuracy+/- 1.5%Weight165 grams (spider only)Battery TypeCR2032Battery Life200 hoursMethod of Cadence MeasurementAccelerometerBCD110 mmWarranty2 year

Why Buy from Power Meter City

1. We ship fast! All orders ship on the same day your order is placed!

2. Free shipping on all orders in the U.S.

3. We are an authorized Quarq dealer and this product comes with a full warranty.

4. Expert advice and customer service in case you need any help.

5. We offer a free, 30-day return policy on new items.

6. We offer 20% off TrainingPeaks Premium when you buy a power meter.

About our Company

At Power Meter City, we focus on power meters and related accessories and components. Our focus on these products means we can offer you the best possible selection, advice and service. 

We have been in business since 2016 and are based in southern California. We are an authorized dealer of every product we sell.