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Buy 3 Select Tires, Get the 4th Free Instantly

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Buy 3 Select Tires, Get the 4th Free Instantly
Buy 3 Tires, Get 4th Tire Free Instantly. Receive a discount equal to the price of a single tire when four tires are added to the cart. Valid on select in stock tires only. Those tires for which discount is available will be identified in search results & product detail pages. All other tires and special order tires are excluded from this offer. Valid when scheduled for installation on PepBoys.com and installation is completed between 12/8/16 through 12/14/16.


Buy 2 Tires, Get 15% Off
Receive 15% off 2 tires on your online purchase. Use promotional code ROLLOUT15 at checkout to receive discount. This offer cannot be combined with any other offers, coupons or rebates. Valid on select in stock tires only. Those tires for which discount is available will be identified in search results & tire detail pages. All other tires, as well as special order tires, are excluded from this offer. Valid if purchased online or installed by 12/14/16.


Buy 2 Tires, Get 10% Off
Receive 10% off 2 tires on your online purchase. Use promotional code ROLLOUT10 at checkout to receive discount. This offer cannot be combined with any other offers, coupons or rebates. Valid on select in stock tires only. Those tires for which discount is available will be identified in search results & tire detail pages. All other tires, as well as special order tires, are excluded from this offer. Valid if purchased online or installed by 12/14/16.

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