What is load index speed rating?
The load index indicates how much weight a tire can safely carry at maximum air pressure, and the speed rating represents the maximum operating speed.
What is load index and speed index?
The speed rating code indicates the maximum speed at which a tyre can carry the load indicated by its load index under the conditions of use specified by the manufacturer.
Does load index and speed rating matter?
Together, the load index and speed rating form the service description. Generally, the higher in the alphabet a tire is rated, the better it will manage heat and faster speeds. There’s an exception for the H rating; read on for why. Your actual speed capacity may be less than a tire’s rating.
What is a good load index?
The higher the tire’s load index number, the greater its load carrying capacity. Choosing a tire with a lower load index than the original equipment specifications means that the tire will not carry the load capacity of the original. Most passenger-car tire load indexes range from 75 to 100, but some are higher.
What does 117 mean on a tire?
Helpful Expert Reply: The 117/112L that you are seeing on your tire is in reference to the load range and speed rating. There is tire load index chart for light truck (LT) tires and the 117 corresponds to 2,833 lbs for single tires and the 112 corresponds to 2,469 lbs for dual tires.
What does load index mean?
load-carrying capacity
The load index indicates the load-carrying capacity of a tire. In other words, it tells you how much weight your tire can support. For example, if a tire has a load index of 92, it can support 1,389 pounds at maximum air pressure.
What speed rating is H?
Tires with a maximum speed capability higher than 300 km/h (186 mph), require a “ZR” in the size designation….Tire Speed Rating Chart.
| SPEED SYMBOLS | ||
|---|---|---|
| U | 200 | 124 |
| H | 210 | 130 |
| V | 240 | 149 |
| W | 270 | 168 |
What is a 121 load rating?
The rating of 121 shows that it has a load capacity of 3297LBS. Multiply that by four tires (4 x 3,297 = 13,188 pounds) to get your vehicle’s max load carrying capacity. Always remember to install tires that have a load index that is equal or greater than your original factory-installed tires.
Can I buy a tire with a higher load rating?
It’s ok to go with a tire that has a higher load rating than the original tires; just be careful to avoid tires with a lower load rating than specified for your vehicle, even if they are less expensive.
What load index is 10 ply?
For example, an “E” load range indicates that a tire is equivalent to a 10-ply construction tire.