Looking for "how to" video on overhauling 1990s Shimano thumbshifters
I've got an old MTB with the thumb levers (labelled "Shimano SIS System") that need a good servicing but cant find much on Youtube that is of any use to me.
They are the sort with a single lever that simply turns on an indexed pivot, not the type with both an up and down trigger shifting mechanism.
If anyone has any videos or links to text-based advice pages that would be much appreciated.
They are the sort with a single lever that simply turns on an indexed pivot, not the type with both an up and down trigger shifting mechanism.
If anyone has any videos or links to text-based advice pages that would be much appreciated.
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Comments
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Probably be better off asking in the MTB section, not the road section. Or ask on the Retrobike forum.0
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I had similar and just swapped them out for brand new which worked much better.0
