After almost 15 years of flawless service my 8 speed Ultegra bar end shifter has suddenly stopped working.
With the wire detached from the derailleur so there's no tension in it the lever now only moves through 5 clicks.
If I switch it into friction mode the lever seems to be limited to a smaller sweep of motion than the left hand lever. I think they used to move to about the same extent.
Is there anything I can try to get the lever working again? Anything to look for that might explain the symptoms?