Posts : 315 Join date : 2009-02-23 Age : 35 Location : Mather Field
Subject: Tire speed rating Mon Feb 23, 2009 9:59 am
Q = 99 mph, 160km/h S = 112 mph, 180km/h T = 118 mph, 190km/h U = 124 mph, 200km/h H = 130 mph, 210km/h V = 149 mph, 240km/h W = 168 mph, 270km/h Y = 186 mph, 300km/h Z = 149 mph, 240km/h and over
iDigR32s Gutter Ball
Posts : 274 Join date : 2009-02-25 Age : 33 Location : Cocklin, California
335 is the width across in millimeters 35 is the ratio of the sidewall compared to the tires with 18 is the size of the wheel/rim Z is he speed rating at which that tire can handle R stands for Radial, which is the pattern of belts/wire
iDigR32s Gutter Ball
Posts : 274 Join date : 2009-02-25 Age : 33 Location : Cocklin, California
I was always under the impression that Z rated is the highest mark for speed. And isnt it for example 225/40/R18 Icould be totally wrong but thats the way I always understood it to be. Check this web-site its pretty usefull. http://www.tire-information-world.com/tire-markings.html
J.T. n00b
Posts : 26 Join date : 2009-03-04 Age : 35 Location : Carmichael
Subject: Re: Tire speed rating Sun Apr 19, 2009 12:23 am
Another12vOwner wrote:
I was always under the impression that Z rated is the highest mark for speed. And isnt it for example 225/40/R18 Icould be totally wrong but thats the way I always understood it to be. Check this web-site its pretty usefull. http://www.tire-information-world.com/tire-markings.html
The ZR can come at the end but is usually put after the aspect ratio and before the rim size.