DFour Power Meter GXP Crankset
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 and the new Qalvin BLE app
- 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.
- 2-year warranty.
- IPX7 waterproof rating.
- Accuracy -- within 1.5%, measuring both legs.
- 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 BLE app.