Frequently Asked Questions
This is the tire size information. 315 is the tire’s outer diameter in inches. 70 is the tire’s width or cross-section in inches from one sidewall to the other. Moreover, “R” means radial and 18 is the wheel or rim diameter in inches.
The most typical use of this tire size is in smaller vehicles, such as compact cars, hatchbacks, and some sedans.
Occasionally check the tread depth with a tread-depth gauge. At 2/32 of an inch in tire tread depth or less, it's time to change the tires due to safety concerns. Look at the tires for unequal wear, hacking up, protrusions, or other damages. These are signs of alignment, suspension, or tire damage that may need to be replaced.
Upgrading to these tires can provide better clearance, better off-road capabilities, and more aggression with the look and feel.
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