My 02 Roadie, completely stock, runs 5 mph slow. When I was riding with my brother who uses his GPS for speed monitoring he would keep creeping up on my back tire while we were on the highway. At a gas stop he said, QUIT RIDING SO SLOW!!!!!!!!!!! I told him listen, I was riding the speed limit, and he said NO YOU ARE NOT, YOU ARE 5 MPH TOO SLOW. I then started riding at 65 when the speed limit was 60 and he stayed behind me and lo and behold at the next gas stop he said, now you are riding at the speed limit. Since then I now ride five miles per hour over the posted limit and have never had a problem and now keep up with traffic and not get passed so much.