Cannondale was nice in replying also, double confirm now. A 1987 for sure.
Since we will (wife and I) be road riding, I decided on the Maxxis Hookworm tires:
Hello! New here, hope it is fun. Time allows us to get more active on the bike so I am fixing back up my 1980's era Cannondale mountain bike. I believe it to be a SM-500 from 1987 based on comparing to the vintage Cannondale catalogs. Blueberry color with Suntour components. I bought it...