Originally Posted by
FastJake
The old school Shimano MTB thumb shifters are a little quieter than the newer rapid-fire types, I think. Many friction shifters are silent, if you want to go back to friction!
I think the OP is referring to the clicks the shifters themselves make which there is nothing that can be done (besides gumming them up with sticky old grease.)
Yup, the click of the shifters themselves
I'd upgrade them if there was something better out there that was *silent*. Maybe it's just a dream and I'm just nit picking.