Originally Posted by
Jax Rhapsody
I would not, and do not waste time of grip shifters- I replace them with thumb or trigger shifters.
I wouldn't choose to fit them, but I have them on a couple of bikes and they're better than low end thumbies - I don't anticipate replacing them before they break.
Originally Posted by
Jax Rhapsody
If ya gotta crack it open, then it's broken. They aren't intended to be serviced.
It's often possible to improve the action by cleaning and greasing the mechanism, and replacing the cable, whether or not the manufacturer intended us to do that.