I have a mid 80's Schwinn High Sierra bike that has the following equipment:
Shimano RD-MT60 rear derail, Shimano FD-MT60 front derail, it has 3 speed front gears and 6 speed rear gears, the shifters are Shimano SIS that are broken.
This bike has been hanging in my garage for 8 to 10 years and I am getting old and fat and need to ride the thing. I would like to update the bike somewhat to the easier shifting mechanisms that I have seen on other bikes. Can this be done without changing everything on the bike?
Mikecool