Hi, I have a 2007 sxf250 that I just rebuilt, and it runs really good! While I was starting it out at the track I notices the rear wheel will move while in neutral. I know it can move a little but it moves like its in gear but not as fast. The bike has 6.1 hours on it, and it does not effect the way it rides. I am just concerned I left something out while it was apart.