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30% Off 4 Installed Tires

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30% Off 4 Installed Tires
Save 30% on 4 installed tires. Use promotional code PEP30TIRES at checkout to receive discount. Discount valid only on select in stock tires. Tires for which this offer is available will be identified in search results and tire detail pages. All other tires and special order tires are excluded from this offer. Requires the purchase of Road Hazard Warranty and Tire Installation Package, which includes valve stems or TPMS reseal kit, & balancing. State or local taxes and/or surcharges for environmental protections will be an additional charge. Valid when scheduled for installation and/or purchased on on 11/30/15.

Calculating Overall Tire Diameter

To calculate overall tire diameter, you only need the size of the tire. The formula below will help you determine the tire diameter.

Calculating Tire Diameter - Illustration

For example, if the tire size is 225/50R 16 the equation will be implemented as follows:

Calculating Tire Diameter - Formula