Quarq DFour Power Meter
DZERO INNOVATION FOR SHIMANO BIKES
The DFour power meter is a bolt-on upgrade for Shimano’s 11-speed Dura-Ace 9000, Ultegra 6800 and 105 5800 drivetrains.
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.
IPX7 waterproof rating.
Accuracy -- within 1.5%, measuring both legs.
Every innovation in Quarq’s next-generation DZero platform is channeled into DFour. It embodies 10 years of Quarq technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and compatibility with BB386EVO bottom brackets.
Designed for Dura-Ace 9000 chainrings. Compatible with Ultegra 6800 and 105 5800 chainrings.
Must be paired with a compatible SRAM bottom bracket.
ELSA RS power meter owners can upgrade using the DFour Power Meter Spider.
Free firmware upgrades with the Qalvin app.
BB30 versions ship with the spacers and wave washer required for BB386EVO installation.
All orders dispatched by Royal Mail.
Items with a value of greater than £50 are sent Royal Mail signed for.
Bulky items (groupsets, wheels & turbo trainers) are sent by courier
- Unless damaged or defective, we accept the return of items only if they are unopened (except in cases where the item has to be tried for fit) and in their original condition. In the case of clothing which have to be tried for fit, any returns must be in their original packaging and with any labels still attached.We reserve the right to refuse a returned item if labels have been detached .
- Returns form must be included in your parcel failure to do so could result in delays .
- Must not exceed 2 kg
- Please ensure that you retain your proof of postage off Royal mail as this may be required to process refunds/exchanges and failure to provide this may result in your refund/exchange not being processed .
- We are unable to refund postage that you have paid for yourself unless it has been pre-authorized by Vanilla bikes.