SRAM RED eTap AXS Upgrade Kit

This kit provides the core components needed to switch to an electronic drivetrain: the hydraulic disc brake levers, the rear derailleur with a battery, and the necessary rotors. It is designed to integrate with your existing crankset and cassette, assuming they are compatible with the AXS ecosystem.

No, this specific upgrade kit is configured for a 1x drivetrain. It is optimized for simplicity and weight reduction, so ensure your current setup or intended build aligns with a single chainring configuration.

The system uses a dedicated battery on the rear derailleur, which is easily removable for charging. The shift levers use standard coin-cell batteries that typically last for up to two years, so you only really need to keep an eye on the derailleur charge.

These calipers use a flat-mount standard, which is the current industry norm for modern road and gravel bikes. If your frame is designed for older post-mount calipers, you will need an adapter or may find that this kit is not compatible.

Yes, the SRAM AXS ecosystem is designed to be cross-compatible. You can mix and match components from the RED, Force, and Rival AXS groupsets, allowing you to upgrade specific parts of your bike over time.

If you are comfortable bleeding hydraulic brakes and setting up electronic derailleurs, it is manageable. However, because it involves hydraulic lines and precise indexing, many riders prefer to have a professional mechanic handle the installation to ensure safety and optimal performance.