Quarq DFOUR Road Power Meter Chassis

Quarq DFOUR Road Power Meter Chassis

This road bike powermeter features two high-quality carbon crank arms that ensure fantastic stiffness, durability and low weight as you smash your personal performance goals. Quarq has also designed this chassis-only version for compatibility with Shimano Dura-Ace R9100 or Ultegra R8000 chainrings for excellent power delivery and precision on your ride. Thanks to its spider powermeter, this model provides riders with accuracy within 1.5%, measuring both legs for reliable, accurate power analysis. Another highlight is it comes complete with many of Quarq's renowned technologies such as MagicZero, AxCad and OmniCal as well as 10K Temperature Compensation and an IPX7 waterproof rating for reliability and consistency in any weather conditions.

Bluetooth and ANT+ Compatible

Your riding and training efforts deserve power measurement that reaches the highest standards of accuracy to help you reach personal records. Because without accurate data, you can’t know if you are making the progress you’re aiming for. With Quarq’s DFour power measurement technology that uses Bluetooth and ANT+ connectivity, you’ll have the technology to get real results.

Reach new goals and explore new roads with a power meter that delivers on accuracy, durability, and reliability. The Quarq DFour DUB Power Meter is paired with the Quarq DUB Crankarms to pair with your Dura-Ace R9100 or Ultegra R8000 chainrings. A SRAM DUB Bottom Bracket will be required for installation (available separately).

Features:

• Crank Arm Material: Carbon
• Use: Road
• Power Meter Type: Spider
• BCD: 110
• Speed: 11 speed
• BB Spindle Interface: DUB
• BB Compatibility: All SRAM Road DUB bottom brackets
• Bottom Bracket Included: No, available separately
• Guard: No guard
• Connectivity: Bluetooth or ANT+
• Battery: CR2032
• Battery Life: 200-hour battery life, change without tools
• Waterproof Rating: IPX7
• Accuracy: Within 1.5%, measuring both legs
• Compatible Chainrings: Shimano Dura-Ace R9100 or Ultegra R8000 road chainrings
• Chainrings Included: No

Technologies:

• DUB: The relationship between bottom bracket spindle and bearing is the core of DUB technology. It’s where stiffness meets durability. Quarq took it a step beyond conventional thinking and made everything simpler—better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this approach to developing a complete system that equals better drivetrain performance.
• Connectivity: Bluetooth low energy technology and ANT+ wireless data transfer.
• MagicZero: Automatically checks and recalibrates your power meter as you ride – no need to manually calibrate.
• AxCad: No cadence magnet required.
• Battery: CR2032, 200-hour battery life, change without tools.
• OmniCal: Swap chainrings without affecting accuracy.
• Accuracy: Within 1.5%, measuring both legs.
• 10K Temperature Compensation.
• IPX7 waterproof rating.

Manufacturer's Part Numbers:

• 00.3018.292.170 Black 170mm
• 00.3018.292.172 Black 172.5mm
• 00.3018.292.175 Black 175mm

Buy Quarq Components from Chain Reaction Cycles, the World's Largest Online Bike Store.