With a little explanation it's easy to understand what all of the letters and numbers mean on your tire's sidewall. The numbers are indicators of the size, type, and performance of the tire.
Tire Type The letter "P" at the beginning of the "Tire Size" tells us the tire is a P-Metric tire, referring to tires made to certain standards within the United States, intended for Passenger vehicles.
If a tire size has no letters at the beginning, this indicates a Euro metric tire. P-Metric and Euro-Metric tires may have different load capacities.
The letters "LT," either at the beginning or at the end of the tire size indicate the tire was designed for light trucks. Vehicle manufacturers equip some light trucks with "LT" type tires. These tires generally require higher inflation pressures than passenger tires.
Consult your owner's manual or tire placard for the recommended tire size and inflation pressure for your vehicle.
Tire Width is the width of the tire measured in millimeters from sidewall to sidewall. The first three-digit number in the tire size refers to the tire width. For instance, in a size P215/65 R15 tire, the width is 215 millimeters.
Aspect Ratio is the ratio of the height of the tire's cross-section to its width. The two-digit number after the slash mark in a tire size is the aspect ratio. For example, in a size P215/65 R15 tire, the 65 means that the height is equal to 65% of the tire's width. The bigger the aspect ratio, the bigger the tire's sidewall will be.
Construction. The letter "R" in a tire size stands for Radial, which means the layers run radially across the tire.
Wheel Diameter is the size of the wheel measured from one end to the other. It tells us the size of the wheel that the tire is intended to fit. A size P215/65 R15 tire is made for a wheel with a 15" diameter.
Load Index indicates the maximum load that the tire can support when properly inflated. You'll also find the maximum load on the tire sidewall, in both pounds and kilograms. Click here to view a Load Index Table.
Speed Rating tells you the maximum speed capability of a tire. Often speed ratings are matched to the top speed capability of the vehicle. For example, a tire with an H-speed rating has a maximum speed capability of 130 mph or 210 km/h. Goodyear does NOT recommend exceeding legally posted speed limits. View Speed Rating Chart
DOT Symbol: The letters "DOT" on the sidewall indicate that the tire complies with all applicable Federal Motor Vehicle Safety Standards in the United States.
Tire Identification Number: The series of letters and numbers following the letters "DOT." The TIN consists of up to 12 numbers and letters to identify the factory location and the week and year the tire was manufactured.
UTQG stands for Uniform Tire Quality Grading, a rating system developed by the U.S. Department of Transportation to provide consumers with information to help them purchase tires based on their relative treadwear, traction and temperature capabilities.
Traction grades indicate the wet traction of a tire under a controlled test. A tire with an "AA" rating offers outstanding traction in wet conditions.
Temperature grades indicate the ability of the tire to withstand and dissipate destructive heat. A tire with a higher temperature grade is able to operate at higher speeds.
|Temperature Grades||Speeds in mph|
|B||Between 100 and 115|
|C||Between 85 and 100|
Treadwear grades are based on standardized government tests to help predict the expected treadwear of a tire. For example, a tire with a treadwear grade of 200 should last twice as long as a tire with a treadwear grade of 100.
†† Only on select discontinued tires, not available at all stores. While supplies last. No rain checks. Prices shown exclude installation, taxes and fees, TPMS. Not to be combined with any other offer on same product. Instant savings does not apply. Offer valid only at Just Tires locations. Offer void where prohibited. See store for full details.
§§ Free Flat Repair Includes: Dismounting and inspection of the tire to determine the cause of the inflation pressure loss and whether or not it can be repaired. Repairs performed in accordance with strict industry standards and Proper plugging/patching from the inside of the tire if suitable for repair. Most passenger and light truck tires and is applicable only to individual consumers and does not include a new TPMS sensor.
* There may be fees associated with your tire purchase and these may vary by location. Some states and local municipalities charge fees and taxes specifically on tires. Some vehicles require additional parts and/or labor to install tires. These fees are listed on the website and on your invoice when your tires are installed.
** Your local store manager will do their best to ensure that the tire you select is in stock before you arrive for your schedule appointment.
§ Suggested price is based on the vehicle manufacturer's recommendations based on type and amount of oil for your vehicle. Up to 5 quarts of oil. Cartridge or non standard filter and/or additional diesel oil extra. Fluid/filter disposal charges may apply. Additional charge for shop supplies, up to 7% or $25 maximum, may be added. See store for complete details. Special State Exceptions: FL - Waste oil / filter fee may apply; CA - $2.50 fluid / filter disposal fee apply but no additional charge for shop supplies apply; PA - no fluid disposal charges apply; NY - no fluid disposal or additional charge for shop supplies apply. No other discounts apply. Cash value 1/50¢.
† Mail-In Rebate for a Just Tires Visa® Prepaid Card or other rebate offers valid on purchases between October 1 and December 31, 2015. One Mail-In Rebate for a Prepaid Card per qualifying purchase and per invoice. Limit one (1) rebate form per tire purchase, per envelope. Offers available only at authorized participating Just Tires location. Offer valid only for U.S. residents who are individual consumers with mailing addresses in the U.S. and U.S. territories. Commercial fleets are not eligible for these rebates. Rebates are on a set of four tires. If your vehicle requires six tires, rebates are available on a prorated basis for the two additional tires. The prorated rebate amount, per additional tire, is 25% of the rebate amount listed above. The minimum purchase is a set of four tires and the maximum purchase is six tires per invoice. Purchases made on the Just Tires Credit Card are subject to credit approval. Get rebate when you purchase a set of four of the following tires: Assurance Fuel Max, Assurance cs Fuel Max, Ultra Grip Winter, Assurance All-Season, Eagle Sport All-Season, Wrangler SR-A, Dunlop Signature HP, Winter Maxx SJ8, Assurance TripleTred All-Season, Assurance cs TripleTred All-Season, Eagle F1 Asymmetric 2, Eagle F1 Asymmetric 2 ROF, Wrangler Fortitude HT, Ultra Grip Ice, Ultra Grip Ice WRT, SP Winter Sport 4D, SP Winter Sport 4D ROF, SP Winter Sport 3D, SP Winter Sport 3D ROF, Assurance ComforTred Touring, Eagle F1 Asymmetric All-Season, Wrangler All-Terrain Adventure with Kevlar. Base portion of rebate offered by Just Tires and doubled portion of rebate offered by CitiBank, N.A. The Just Tires Credit Card is issued by Citibank, N.A. Completed rebate form must be postmarked, or submitted online, no later than January 31, 2016. Allow 6 to 8 weeks for Prepaid Card delivery. Just Tires reserves the right to substitute a check of equal value in lieu of a Prepaid Card at its discretion. For additional questions, or to check the status of your rebate, you may visit www.GoodyearTireRebates.com or call the Just Tires Rebate Customer Service at 1-844-539-5503 weekdays, 8am to 7pm CT. Fraudulent submissions will not be honored and may be prosecuted. Sponsor is not responsible for noncomplying Rebate Submissions or for lost, late, illegible, postage-due or undeliverable mail. Noncomplying Rebate Submissions will not be honored, acknowledged or returned. Void where taxed, restricted or prohibited by law. All decisions made by Just Tires (or its authorized representatives) relating to the validity of any submissions are final and binding. This promotion is subject to all federal, state, and local laws and regulations. Retain copies of the materials you submit. Additional terms and conditions apply. Ask participating Retailer for complete details and Rebate Form.
Visa is a registered trademark of Visa U.S.A. Inc. Just Tires Visa Prepaid Cards are issued by Citibank, N.A. pursuant to a license from Visa U.S.A. Inc. and managed by Citi Prepaid Services. Just Tires is not affiliated with Visa. Prepaid Cards will not have cash access and can be used everywhere Visa debit cards are accepted. Each time you use the Card the amount of the transaction will be deducted from the amount of your available balance. Card will be issued in the name on the redemption form only. Card valid for 6 months, subject to applicable law. Terms and conditions apply to the Prepaid Card. See Prepaid Card for details. To check the balance of your Card or receive the terms and conditions, visit prepaid.citi.com/goodyearrebates or call 1-800-522-7458.
DuPont™ and Kevlar® are trademarks or registered trademarks of E.I. du Pont de Nemours and Company