SRAM Red AXS E1 Power Meter

This power meter requires a crankset that utilizes the SRAM 8-bolt direct mount interface. Please verify your current crankset's mounting standard before purchasing, as it will not fit standard 3-bolt or other proprietary mounting systems.

No, the power meter itself does not dictate the bottom bracket choice. However, you must ensure your chosen bottom bracket is compatible with the crankset you are pairing this chainring with.

The system uses built-in sensors to automatically adjust for temperature fluctuations in real-time. This ensures your power data remains accurate within the claimed +/- 1.5% margin, even as the ambient temperature changes throughout your ride.

Yes, the unit features both ANT+ and Bluetooth connectivity. This allows you to simultaneously pair it with a dedicated cycling computer for live metrics and a smartphone app for firmware updates or data analysis.

Because the power meter is integrated into the chainring assembly, you will need to replace the entire unit once the chainring teeth reach the end of their service life. This design prioritizes maximum stiffness and weight savings over modularity.

No, this component is specifically engineered for SRAM 12-speed drivetrains. It will not function correctly with 11-speed chains or cassettes due to the specific tooth profile and spacing requirements of the 12-speed system.