Article: 38048 of rec.autos.driving
From: tman@earthlink.net
Subject: Re: Speed Ratings on Tyres (was Re: My Driving Experience)
Date: 25 Mar 1995 02:05:03 GMT
Organization: America's Tire Company / Discount Tire Company
Lines: 30

You want ALL the speed ratings?? Here goes:

lets skip the low ratings for trailers and such and start with...

M = 81mph
N = 87mph
P = 94 mph  (not as in "P"195/75R14... that means "passenger")
Q = 100 mph (really starts speed ratings on some 4WD tires...)
R = 106 mph (not to be confused with 195/75"R"14 for "radial")
S = 112 mph (finally a letter you recognize...)
T = 118 mph
U = 124 mph (I think only Goodyear uses this...)
H = 130 mph
V = above 130
      the next are new descriptions that will be shown as "225/50R-16 92V"
      or 235/45R-17 88W " for exaple
V = 149 mph
W = 168 mph
Y = 186 mph

now memorize this and never forget!