Breaking down your tire size conversion has always been a hassle. With our Tire Size Guide, you can now decipher all the information pertaining to the tire, making the selection of the replacements that much easier. Here we have brought together a comprehensive list of Radials, Poly/Fibers, Bias-Ply's, Cheater Slicks, and Dragster Slicks. You'll find the original tire size listed, and each of the related measurements broken down for each of them.

How Tire Sizes Explained

Tire size dimensions graphic

Old Tire Size Conversion Chart

Using the chart below, find the vintage tire size conversion for your Radials, Poly/Fibers, Bias-Ply's, Cheater Slicks, or Dragster Slicks.

Old tire size conversion chart

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Racing Wheel Guide: Design, Torque, Offset and Backspacing

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Learn how to measure backspace, torque specs, design, and other wheel basics. Our racing wheel guide covers all you need for a new set of oval track wheels.

Old Tire Sizes Explained & Conversion Chart

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