View Here : Winter Tire Conversion Chart
Alpha numeric tire sizes were introduced as Original Equipment in the late 60s and became widely used in the early 70s. These tires were identified with a letter which indicated the tire's load capacity, followed by an "R" if radial ply construction, the tire's aspect ratio and wheel diameter.
A tire conversion chart for all tire sizes. Listed by wheel size and tire diameter, our tire conversion chart has all your tire size conversion answers.
Sidewall Markings. There is a lot of information on the sidewall of a tire. Typically, you'll find UTQG ratings for treadwear, traction and temperature, the size of the tire, the load rating index number with a speed rating index, the construction type (bias or radial), the D.O.T. (Dept. of Transportation) compliance code, construction details, and of course, the make and model of the tire.
Metric tire conversion can be quite a pain. With inch tire sizes the first number is the height and the second is the width. Well, with metric sizes the first number is the width and the second is the percent of the width that is the sidewall height.
Tire load index or load rating is a numerical code on a tire sidewall which specify the maximum load the tire can carry at the speed indicated by the tire's speed rating under certain service conditions - specified by the manufacturer.. The load index is identified as a part of the tire size designation or the tire's service description, together with the speed index (e.g. Size designation ...
We've combined hours of training and testing with years of industry and product knowledge into easy-to-understand articles within our Winter Tire Tech Center.
Tyre Size Calculator/Tire Plus Sizing Calculator - Calculates Tyre Dimensions for Plus Sizing Tyre Size Calculator/Tire Plus Sizing Calculator helps you to find the optimal tyre size when you install the larger wheels on a car.
Automobile tires are described by an alphanumeric tire code (in American English and Canadian English) or tyre code (in British English, Australian English and others), which is generally molded (or moulded) into the sidewall of the tire. This code specifies the dimensions of the tire, and some of its key limitations, such as load-bearing ability, and maximum speed.
Off road tires. In many instances normal mountain bike tires work fairly well for winter riding.. Trail riding (often following snowmobile tracks) can be done with normal tires if you let some air out so that you are running at the lowest pressure you can get by with.
The series number in a tire-numbering system refers to the aspect ratio of the tire's sidewall height to its width. A series 65 tire's height is 65 percent of its width, a series 70 tire's height is 70 percent of its width and so on.