[Sycraft]

The billboards may be your issue, they ride horribly in my opinion. I had to switch to another brand and all my vibes went away. I had also tried Mickey Thompson tires, they were all road force balanced and indexed on the rims and still rode bad. Not until I put Avons on it did it ride like glass. The tracking and the stability is extremely good now, no issues to 125 so far, but that is about as fast as I go with this car.