SRAM Rival AXS: Front derailleur no longer responds to button combination (left+right)
Hi everyone,
Since yesterday I’ve had an issue with the front derailleur on my SRAM Rival AXS drivetrain while riding.
The problem: The “left and right shift lever simultaneously” button combination no longer triggers the front derailleur.
What works:
The front derailleur is connected, charged, and shows as active in the app
I can shift it up and down directly at the derailleur itself
If I change the assignment, I can also operate the front derailleur via the left or right lever individually
The combo action “left + right simultaneously” works perfectly when I assign it to a different function (e.g., rear shift up/down)
What doesn’t work: Only when I assign this exact combination (left + right simultaneously) to the front derailleur does nothing happen.
What I’ve already tried:
Completely unpaired and re-paired the system
All components are on the latest firmware
I don’t understand why the combination works fine for other functions but specifically doesn’t trigger the front derailleur. Has anyone else run into the same issue? What could be causing this, and what else can I try?