Description
FEATURES:
- Spider must be paired with a compatible Quarq DZero DUB crankset with an 8-bolt interface and SRAM DUB bottom bracket
- Not compatible with SRAM’s 3-bolt direct mount interface
- DFour DUB is designed for Dura-Ace R9100 chainrings
- Bluetooth low energy technology and ANT+ wireless data transfer
- MagicZero technology automatically checks and recalibrates your power meter as you ride – no need to manually calibrate
- AxCad system provides no-magnet cadence data
- Use the AXS app to easily update firmware and view power meter metrics
- Measures power for both legs with +/- 1.5% accuracy
- Uses a CR2032 battery that can be replaced without tools
- OmniCal system allows you to swap chainrings without affecting accuracy
- IPX7 waterproof rating
- Chainring BCD: 110 Asym
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