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What Do Tire Ratings Stand For
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Tire Rating Nomenclature
Decoding the Mystery
Tire Ratings can be dauntingly complex at
first glance. This video explains what each value stamped on the side of
your tire is. Know what tire you have already? Watch the next video in the
series: Tire Ratings Explained.
Tire Rating Quick Reference Guide
| Attribute |
Symbol |
| Tire Width |
Example: "295" (mm) |
| Tire Profile Aspect Ratio |
Example: "30" (% of width) |
| Speed Rating* |
Example: "Z, Y" |
| Radial Indicator |
"R" |
| Tire Diameter |
Example: "19" (in) |
| Load Rating |
Example: "100" |
| Treadwear |
Example: "220" |
| Traction |
Example: "AA" |
| Temperature |
Example: "A" |
* Speed Rating for high performance tires can be a little extra
confusing. Tires that are meant to perform over 149mph are all called "Z-
rated" tires. Z-rated tires have two ratings that fall in that class of
tire: W-rated (up to 168mph), and Y-rated (up to 186mph). Thus, a tire can
have a speed rating of both "Z" and "Y".
Orange County Tire Experts
Infiniti of Mission Viejo is your one-stop
service center for tires. Why have your vehicle serviced at the dealership
and make an extra trip to find tires? Our tire prices are extremely
competitive - and all come with a Road Hazard Guarantee, which
those discount tire stores charge you an arm and a leg for. By the time you
find a "tire deal", you'll have spent double the discount in your time and
effort. Have your tires installed along with your service or maintenance -
all in one fell swoop.
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