Your speed-rated tires are expensive, so naturally if there's a leak, you'd want to fix them. But be careful: those repairs ...

This rating corresponds to a list of speeds on a tire speed rating chart. The speed rating is typically selected to match the vehicle's top speed. In the example "H", the letter indicates that the ...

Immediately after this is a single letter, which is your tire's speed rating. Common ratings for passenger cars are T, H, and V, and faster tires earn ratings of W, Y, or Z (there is no "X" tire ...

Where to find your tyre speed rating. The tyre speed rating is very simple to find. It’s a single letter at the very end of your tyre size code, following the tyre size code, and the load rating ...

All the numbers refer to measurements while the letters refer to tire types and ratings — as we’ll explain later. Let’s tackle the numbers first. As an example, we’ll consider this tire ...

Confused about the pressure number on your tire? Learn why the tire’s pressure rating isn’t what you should use and what to ...

Other letters, such as the "ZR" on the Porsche 911 GT3 RS tire (shown in the lead image of this article) indicate a high-speed rating. More on that in a moment. Michael Simari | Car and Driver ...

Speed ratings in reverseWe always see tires that are being improved for quicker steering and for increasing the speed time from 0 to 60 mph.What I think is equally, if not more, important is a tire ...

Selecting the proper tire size for you motorcycle is important for your safety. Here is everything you need to know about replacing motorcycle tires.

Letter: A solution to reader's speed rating problemI'm writing in response to Jermaine Jamison's letter to the editor in the Nov. 19 issue of Tire Business in which he asked why “the powers that be ...

The tire’s Service Description code is to the left of the Load Range: Load Index (199 = 2,998 pounds) and Speed Rating (Q = 99 mph). Load Range: LT-Metric Vs. LT-Flotation Vs.

The load index will be a number from 0 to 150. To interpret, you’ll need to consult a load index chart. This document will often be sorted into several columns with different inflation levels and ...