Quarq DFour AXS DUB Power Meter Spider combines the advanced power meter technology with SRAM’s innovative DUB platform to bring you a simple spider-based power meter.
- MagicZero™ – automatic calibration as you ride. No need to back pedal or manually calibrate through your headunit.
- 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 SRAM AXS app.