# H - for speeds up to 129 MPH
# V - for speeds up to 149 MPH
It's my opinion that the only reason the Rocket comes with a V rated tire is that there is not an option in between the H and V rating. If there was one that was rated to 139 MPH that is what the Rocket would have come with, since that is faster than a stock Rocket will go, even without correcting the speedometer.
I know for a fact that my Rocket will never go above the H speed rating, at least not while I'm on it. For one I don't think it is capable of it and two I've got too much good sense to do it. So I run the H rated tire, but still a Metzler.