I have a mid 80's Schwinn Passage touring bike with 27 inch wheels. Everything is mostly stock. I'm thinking about updating the wheels to 700c and a rear cassette to have stronger wheels for loaded touring. I took the bike by my LBS and was told that I would need new brakes that adjust up and down and that I need a new shifters and a rear derailleur because they thought my friction Suntour bar-cons and stock Sach-Huret derailleur would only handle up to 7 speeds. Is that all correct? I could see the need for the brakes but how about the shifters and rear derailleur?
Do you have any other advice for me?