DZERO INNOVATION FOR SHIMANO BIKES
Make the most of your Shimano® Dura-Ace® R9100 groupset by upgrading to Quarq’s DFour91 power meter, which embodies all the advances of the next-generation DZero platform.
DFour91 embodies 10 years of Quarq advances in power meter technology, plus new features such as dual Bluetooth Low Energy and ANT+ wireless data transfer, revised circuitry, a new strain gauge design and the Qalvin BLE app.
The DFour91 power meter is a bolt-on upgrade, pairing with the 11-speed Dura-Ace® R9100 chainrings. Get the chassis, which includes Quarq’s lightweight, sturdy ExogramTM carbon crank arms. The GXP and BB30 versions work with every bottom bracket shell, including BBright and BB386EVO.
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.
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.
WESTBROOK CYCLES DELIVERY NOTICE
FREE when you spend over £50.00 in a single order
Otherwise it's typically £3.99 per order
Delivery should be expected between 2-3 working days unless stated on product page.
Approximately 4-10 working days depending on country
via Parcelforce Signed Delivery (fully traceable service). Please add items to the basket to calculate delivery for desired country.
If your country isn't listed for delivery at checkout please contact us.
Delivery of Bikes
We ship all our bikes free of charge within the United Kingdom (excl. Jersey and the Channel Islands at this time) and all our bikes come pre-assembled with just a few tweaks required (Please see our Bike Build Instruction page for details of assembly required).
All our bikes undergo a safety check before being re-boxed for shipping which can during busy periods take a little longer to complete so whilst we aim to ship all our bikes within two working days of the order please allow for additional time for this process.
All our consignments irrespective of the carrier require a signature upon delivery, deliveries are typically made between 08:00 and 18:00 so please bare this in mind when choosing a delivery address.
We do try when possible to reuse packaging from our own suppliers in order to send purchased items to our customers, we ask if the packaging is still in good condition after you've received your goods then please try to use it again or recycle if not possible.