Tire Speed Rating Question
I'm posting this here because the speed rating of a tire seems to me to cross all lines/types of vehicles. Reading up on warranty issues/questions just now, I came across the following language ...
Forum Discussion
wa8yxm wrote:
First... What is the speed rating of the tire? Most tires are rated for.. Well.. Faster than you should be driving an RV (Let's just leave it at that) Special high speed tires are rated for speeds in the 150-200 MPH range.. I'd hate to think of the tires on "The Spirit of America" (This sled does Mach 1 Plus).
Typical passcar tires are rated for 112(S) or 118MPH(T). Many cars use tires raced for 130MPH (H). High-performance cars often use tires rated for 149MPH (V) or more (Z).
As I recall the tires used on MOST Michigan State Police cars which appeard to be "off the shelf" tires were speed rated 120 MPH.. Some of the patrol cars get (And need) the 150 MPH ones. (And even if you outrun it, there is the Motorola to think about).
Every police car I can think of since the late 80's has had V-rated or better tires from the factory. (In fact, Goodyear made a run of V-rated Eagle GA's in 235/70R15 for the 1994-96 Caprices.)
I have seen SMALL trailer tires rated for like45 or 55 but never a car or truck tire that slow.
Lowest rating I have seen on a P or LT tire is 99MPH (Q), and that is usually a snow tire or an all-terrain truck tire.
