Quarq DFour Carbon Power Meter Crankset Chassis 110BCD 4 Bolt GXP 175mm (Shim)

This is Quarq’s next generation in power meters, channelled into the Shimano®-compatible DFour power meter. Designed for Shimano®’s lightweight, ergonomic Dura-Ace® groupset, DFour is Quarq’s most advanced Shimano®-compatible power meter ever. The DFour builds upon 10 years of constant advances in technology from Quarq, and they have made over 150 improvements on the previous platform. New features include dual Bluetooth low energy and ANT+ wireless data transfer, with the new Qalvin BLE app. Revised circuitry and a new strain gauge design give you a solid record of improving your performance. The crankset has the sole job of converting effort from your legs into forward motion, so it is the perfect place to measure power.

Designed for Shimano 11-speed groupsets and Dura-Ace® 9000 chainrings. Compatible with Ultegra® 6800 and 105® 5800 chainrings.

With an IPX7 waterproof rating, this powermeter is built to last. They feature a 2 year warranty with free firmware updates and acclaimed worldwide support. This powermeter is also incredibly versatile. Should your bike, discipline or ability change, the chainrings are completely replaceable.

Whats in the box:
• Quarq DFour Power Meter Spider
• 2 piece crankset (Exogram carbon fibre crank arms)
• Chainring bolts (Chainring not included)
• Instructions

Features & Benefits
• Exogram carbon crank arms
• Bluetooth low energy technology and ANT+ wireless data transfer
• AxCad – no cadence magnet required
• 10K Temperature Compensation
• Battery – CR2032, 200-hour battery life, change without tools
• Power Balance
• OmniCal – swap chainrings without affecting accuracy
• 2-year warranty
• IPX7 waterproof rating
• Accuracy – within 1.5%, measuring both legs
• Free firmware upgrades with the Qalvin app

Essential Details
• Designed for Dura-Ace® 9000 chainrings. Compatible with Ultegra® 6800 and 105® 5800 chainrings