Hello, I´ve been away from motorcycles since the 50s and 60s. I´ve just discovered this marque and I am fascinated particularly by what I´ve been able to identify as the 1971 and 1972 750 SF models. I´d appreciate learning about any particularly good links or publications about early 70s vintage examples of this model. Also, I have a question...Is the *knee pad tank* unique to the 1971 model year? Where to find these for sale other than eBay (which I am watching)? Saving my money and dreaming...Cheerio!