How To Find Tire Size

 Where do I find my Tire Size dimensions? 

Every tire has it's dimensions listed on the sidewall of the tire. It will be listed similar to the example tire size below. The tire size is also shown in the image below the next paragraph. 

 

Example Tire Size: 275/40/19 or 35/12.50/20 

When filling out the custom tune form, make sure to fill in Tire Size dimensions directly from one of your vehicle's driven tires. For example, if your vehicle is RWD, only list the tire size displayed on the rear tire. If your vehicle is FWD, only list the front tire size. If your vehicle is AWD/4x4, list the rear tire size.