Tire Type
Tire Types are tire categories describing different attributes and tire performance levels as determined by the respective Tire Manufacturer's definitions.
Tire Manufacturer's Tread Warranty
All tire manufacturers provide a basic limited warranty that covers workmanship and materials for a specific time frame or mileage limit.
In addition to the Tire Manufacturers basic limited warranty, this Tire Manufacturer offers a supplemental limited mileage/tread warranty that applies to this tire. If the tire fails to meet these tread-wear limits, the manufacturer will replace the tire with an equivalent new tire.
See the Tire Manufacturer’s warranty information for details, restrictions and exclusions by selecting the tire details.
About Warranties...
Warranties are governed by both state and federal laws and regulations. Everyone should have a basic understanding of warranty coverage, as well as their obligations under the law and under the rules of good business.
Speed Rating
A letter symbol that follows the load index indicates the tire’s speed rating. The speed rating denotes the speed at which a tire is designed to be driven for extended periods of time under a standard condition of load and inflation pressure. The tires on your vehicle may operate at different conditions for load and inflation pressure. These speed ratings may need to be adjusted for the difference in conditions. The ratings range from 81 mph (130 km/h) to 186 mph (299 km/h). These ratings are listed in the following chart.
Note: you may not find this information on all tires because it is not required by law.
| Q | 99 mph | H | 130 mph |
| R | 106 mph | V | 149 mph |
| S | 112 mph | W | 168 mph* |
| T | 118 mph | Y | 186 mph* |
| U | 124 mph | | |
*For tires with a maximum speed capability over 149 mph, tire manufacturers sometimes use the letters ZR. For those with a maximum speed capability over 186 mph, tire manufactures always use the letters ZR.
Source: consumerreport.org
Chart source: safercar.gov
Load Rating
This two- or three- digit numeric code indicates the tire’s load index. It is an index that relates to how much weight a tire can carry. You may find this information in your Owner’s Guide. If not, contact your local tire dealer.
Note: you may not find this information on all tires because it is not required by law.
| Load Index Ratings |
| Load Index |
Load (lb) |
Load Index |
Load (lb) |
| 74 |
827 |
113 |
2535 |
| 75 |
853 |
114 |
2601 |
| 76 |
882 |
115 |
2679 |
| 77 |
908 |
116 |
2756 |
| 78 |
937 |
117 |
2833 |
| 79 |
963 |
118 |
2910 |
| 80 |
992 |
119 |
2998 |
| 81 |
1019 |
120 |
3086 |
| 82 |
1047 |
121 |
3197 |
| 83 |
1074 |
122 |
3307 |
| 84 |
1102 |
123 |
3417 |
| 85 |
1135 |
124 |
3527 |
| 86 |
1168 |
125 |
3638 |
| 87 |
1201 |
126 |
3748 |
| 88 |
1235 |
127 |
3858 |
| 89 |
1279 |
128 |
3968 |
| 90 |
1323 |
129 |
4079 |
| 91 |
1356 |
130 |
4189 |
| 92 |
1389 |
131 |
4299 |
| 93 |
1433 |
132 |
4409 |
| 94 |
1477 |
133 |
4541 |
| 95 |
1521 |
134 |
4674 |
| 96 |
1565 |
135 |
4806 |
| 97 |
1609 |
136 |
4938 |
| 98 |
1653 |
137 |
5071 |
| 99 |
1709 |
138 |
5203 |
| 100 |
1764 |
139 |
5357 |
| 101 |
1819 |
140 |
5512 |
| 102 |
1874 |
141 |
5677 |
| 103 |
1929 |
142 |
5842 |
| 104 |
1984 |
143 |
6008 |
| 105 |
2039 |
144 |
6173 |
| 106 |
2094 |
145 |
6393 |
| 107 |
2149 |
146 |
6614 |
| 108 |
2205 |
147 |
6779 |
| 109 |
2271 |
148 |
6944 |
| 110 |
2337 |
149 |
7165 |
| 111 |
2403 |
150 |
7385 |
| 112 |
2469 |
|
|
Source: Michelin North America
Sidewall Definitions
Sidewall is another way of saying, "visible side of the tire".
Tire Manufacturer sidewall definitions:
| Sidewall Abbreviation |
Definition |
| BSB |
Broken Serrated Band |
| BSL |
Black Serrated Letters |
| BSW |
Black Sidewall |
| DSB |
Diagonal Serrated Band |
| OBL |
Outlined Black Letters |
| ORBL |
Outlined Raised Black Letter |
| ORWL |
Outlined White Letter |
| OWL |
Outline White Letter |
| RBL |
Recessed Black Letter |
| ROWL |
Raised Outline White Letter |
| RRBL |
Raised Black Letter |
| RWL |
Raised White Letter |
| SBL |
Smooth Black Letter |
| TL |
Tubeless |
| VDS |
Variable Depth Serration |
| VSB |
Vertical Serrated Letter |
| WSW |
White Sidewall |
| WW |
Whitewall |
| XNW |
Extra Narrow White |
UTQG
Uniform Tire Quality Grades (UTQG) apply to new pneumatic passenger car tires. The Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width.
- Treadwear: The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and one-half times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices, and differences in road characteristics and climate.
- Traction: The traction grades, from highest to lowest are AA, A, B, and C. The grades represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance.
WARNING: The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning or peak traction characteristics.
- Temperature: The temperature grades are A (the highest), B and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 139. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law.
WARNING: The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure.
Source: Ford Owner's Guide
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