I have a 79 cb 750K. It is in good condition, but not great. It has about 41,000 miles. It has definitely been ridden. I have explored all of its limits in its current incarnation. That is, I have ridden it as fast as it will go in every condition, including snow. I am trying to decide what to do with it. Should I put money into it and make it faster? Should I trade it in on a 1300ST? I love this bike it is very reliable and fun to ride. I have commuted to work on it a few years. As I said, it is ridden. However, I am at the point at which I need to decide whether to put money into it or cut it loose. I also have a 79 cb 750 super sport I have never ridden. It is a fixer upper that I actually had to steal a couple of parts off of. Any reasonable feedback is welcome