Following an accident which has left me with a weakened thumb I can't change up on the chain ring, I have to take my hand off the grip and push with forefinger and thumb, I currently have XT shifters.
I have changed cables etc and it still depends too much force which my thumb can't cope with on it's own and with pain.
Do XTR front shifters have a 'lighter push' with the thumb. I managed a long ride at weekend but it's a bit awkward when the terrain is bumpy to take the hand off the grip. Any other ideas will be welcome.
Cheers.

