I just purchased another airhead, the owner claims that it was an R100CS. The title hwever does not reflect the "CS". It doesn't matter very much to me as I do like the bike but I did read that the CS makes it "more desireable". It is a 1982. I have read that some people have serial numbers in such a range as to indicate it was a CS. Does anyone have any idea how I can tell exactly what model I have? Maybe a website where I can look up serial number ranges and their model numbers?
Thanks very much,