Quarq XX1 Eagle Boost Power Meter Spider Assembly 8-Bolt Non-Hidden

• 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.
• Power Balance.
• 2-year warranty.
• IPX7 waterproof rating.
• Accuracy – within 1.5%, measuring both legs.
• Free firmware upgrades with the Qalvin app.
• SRAM XX1 Power Meter owners can upgrade to the DZero platform with an Eagle Power Meter Spider. (Note: Boost spiders should not be paired with 156Q crank arms).
• Two power meter variations – Conventional and Boost 148 (52mm chainline).
• Requires an X-SYNC 2 or X-SYNC 104 BCD chainring.
• Uses the 8-Bolt crank to spider interface.  See 8-Bolt Compatibility, below.
• The XX1 Eagle power meter is not compatible with Cannondale Asymmetric Integration (Ai).

• Quarq ELSA RS (Aug ’14)
• Quarq RIKEN AL (Apr ’15)
• Quarq Prime Power Ready Cranksets (Mar ’16)
• SRAM RED Power Ready Cranksets (Mar ’16)
• SRAM XX1 Power Meter (Aug ’14) (Note: Boost spiders should not be paired with 156Q crank arms)
• SRAM RED BB386EVO standard crankset (Mar ’16)
• Power meters switched to 8-bolt:

Occasionally, without notice, manufacturers change product design and/or specifications.