1985 Cannondale SM600. This has the 24/26 wheels and a very high BB. I built this up new when I worked at a Bike Shop and it is still in great shape. I made a few changes early on. When I switched the steel fork for the SR Litage aluminum, I couldn't use the Rollercams anymore. I got Pedersen Self Energizing cantilevers for the front; they later discontinued front versions because they were supposedly too strong (?). I've never had a problem with them. I love this bike!