Quarq DFour91 Power Meter Chassis

Quarq DFour91 Power Meter Chassis
110mm Asymmetric
Bottom Bracket:
Please select options
This item is not permitted to be shipped, however it can be purchased online and picked up at your convenience. We will notify you when your order is ready for pick up. Please call store to see if quicker service is available prior to ordering.


Every innovation in Quarq’s next-generation DZero platform is channeled into DFour: 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 new Qalvin BLE app. The DFour91 is designed for Shimano’s Dura-Ace R9100 chainrings. It uses Quarq’s lightweight, sturdy ExogramTM carbon crank arms. GXP and BB30 versions work with every bottom bracket shell, including BBright and BB386EVO.

- DFour is designed for Dura-Ace 9000 chainrings and compatible with Ultegra 6800 and 105 5800 chainrings
- DFour91 is designed for Dura-Ace R9100 chainrings
- Must be paired with a compatible SRAM bottom bracket
- 8-bolt power meter owners can upgrade using a DFour or DFour91 power meter spider
- 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
- OmniCal — swap chainrings without affecting accuracy
- 2-year warranty
- IPX7 waterproof rating
- Accuracy — within 1.5%, measuring both legs
- Chainrings and bottom bracket sold separately

Part Numbers

Option UPC MPN
110mm Asymmetric / GXP / N/A / Black / 175mm 710845805400 00.3018.192.175