It's a 1977 CB550 K model, althought the engine is from a 1974 CB500. 16k miles, clubman bars, sparkly blue paint (definitely not original). I am not the original owner, given that I was six when it rolled off the line, so it is hard to tell what is original and what has been replaced. That said, its a peach - no rust, dings, or dents and the 4-4 exhaust looks almost new. I've not had to put much work into it other than replacing the shift shaft seal and a faulty ignition.