Originally Posted by
frogman
I have a Shimano Dura Ace 9 speed bar end shifter on my touring bike that skips over 4th gear ......Can they be rebuilt or do I have to buy new ones ?
It's an odd mode of failure. Before doing anything else, I'd cross my fingers and flush it with something like WD-40 and hope for the best.
Otherwise, I don't think it'll be serviceable.