I have been looking at 2006 Yamaha R1 50th Anniversary motorcycle and noticed there is a SP and LE model. What is the difference? I know that Yamaha made a Limited Edition bike with full ?hlins suspension and Marchesini wheels in the 50th Anniversary colors which were numbered 1-500. But I also see other R1s in the 50th Anniversary colors that are not numbered. Is one of these bikes the LE and the other the SP?