I think it might be just a bit of sibling rivalry, he`s 8 years younger. Talking about top speeds, do they still say to take 10% off of the speedo for a true speed? As surely in this day n age of modern tech your speedo should be more accurate. I mean how can my naked do 139 and a S do 140, the S is surely faster? Other factors are of course, down hill, wind behind u, light fuel load and what is the square root of a gnats chuff? (randomly!)