I finally got my 9 dialed in, had some carb issues. But now its a monster. The other day i was just messing around while heading to work, i launched it easy and once it got to around 6k it almost felt like it broke the tire loose. ( the back end got loose) Am i loosing my mind or is it possible. Its stock height and stock wheel base, the bike is stock with the exception of slip on. Rear tire is a battleax.