Tire Rating Info / Tire Size Calculator

Thought this would make a good sticky.

[L] 75 mph 120 km/h Off-Road & Light Truck Tires
[M] 81 mph 130 km/h
[N] 87 mph 140km/h Temporary Spare Tires
[P] 93 mph 150 km/h
[Q] 99 mph 160 km/h Studless & Studdable Winter Tires
[R] 106 mph 170 km/h H.D. Light Truck Tires
[S] 112 mph 180 km/h Family Sedans & Vans
[T] 118 mph 190 km/h Family Sedans & Vans
[U] 124 mph 200 km/h
[H] 130 mph 210 km/h Sport Sedans & Coupes
[V] 149 mph 240 km/h Sport Sedans, Coupes & Sports Cars
[W] 168 mph 270 km/h Exotic Sports Cars
[Y] 186 mph 300 km/h Exotic Sports Cars

[Haproot]
Tire Size Calculator <--CLICK

Good find

Here's a handy tire size calculator if you wanna experiment with plus sizing.

Tire Size Calculator <--CLICK