I'll have to take a look at that. I went for a ride tonite at just under mach and the thing was doing great. I had to work to keep it under 90. Once at triple digits, the vibe was a bit more present. I run the tire pressure a bit higher due to my zesty riding style and still managed to cup the front tire. In a few months, after I'm done shreding the metzlers, I'm thinking of a set a diablo's or mabye Pilot Powers.