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Buy 3 Get 4th Free or Buy 2 Get 15% Off

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Buy 2, Get 15% Off Tires
Receive 15% off 2 select tires when scheduled for installation on PepBoys.com and installation is completed between 10/26/14 through 11/25/14. Use promotional code 15TIRE at checkout to receive discount OR click here to print this in store coupon and present at time of installation. Cannot be combined with any other offer, coupon or rebate. Valid on select in stock tires only, those tires for which discount is available will be identified in search results, all other tires and special order tires are excluded from this offer. Requires purchase of road hazard warranty and tire installation package which includes valve stems or TPMS reseal kit and balancing.

Buy 3, Get the 4th Free Instantly!
Receive the amount of 1 tire off when 4 are added to cart and scheduled for installation on PepBoys.com. Installation must be completed between 9/29/14 through 10/25/14. Can not be combined with any other offer, coupon or rebate. Valid on select in stock tires only, those tires for which discount is available will be identified in search results, all other tires and special order tires are excluded from this offer. Requires purchase of road hazard warranty and tire installation package which includes valve stems or TPMS reseal kit and balancing.

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
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