If your tires indicate higher max air pressures than the max load carrying air pressure of the tire a tire expert may need to weigh in to make sure the tire being used can handle the weight requirements of the vehicle.
Light truck tire load rating chart.
This is because light truck tires are often used on vehicles with dual rear wheels.
Load ranges per vehicle whether you drive a regular passenger vehicle a light truck or even a heavy truck each will be riding on tires that have been specifically constructed to hold the weight of.
The speed rating is identified as a part of the tire size designation or the tire s service description together with the load index.
Both have a 4 ply rating but the extra load can support additional load at up to 42 psi while the standard load is 36 psi.
The load range ply rating branded on a tire s sidewall identifies how much load the tire is designed to carry at its industry specified pressure.
To select the right load and inflation table for your commercial tires locate your tire size then match your tire s sidewall markings to the table with the same sidewall markings.
Tire speed rating or the speed index symbol specify the top speed at which the tire can carry a load corresponding to its load index under service conditions specified by the manufacturer.
The speed rating system as it is used today was developed in europe.
Still you should always choose tires with a speed rating that is higher than the top speed of your vehicle.
Passenger tires feature named load ranges while light truck tires use load ranges that ascend in alphabetical order letters further along in the.
When it comes to light trucks the load rating is perhaps more important than the speed rating as trucks don t reach high top speeds.
If you see ply rating and load range on a chart they both represent the tire s maximum load carrying capacity at maximum allowable air pressure.
Light truck tires have two load indexes on the sidewall of the tire unlike passenger tires which only have one.
R speed tires are rare but can be found on some heavy duty light truck lt tires as well as studdable and studless winter tires.
The values of load index vary for the passenger tires and the light truck tires range usually from 70 to 110.
All tires big and small have a recommended load rating.
For example a light truck tire with a load index of 120 116 means a load capacity for a single tire of 3 086 pounds and a load capacity of 2 756 pounds for two tires.
Speed symbol the speed symbol also known as the speed rating denotes the maximum speed at which the tire can carry the load indicated by load index li under service conditions specified by a tire manufacturer.
Each tire model comes in many different sizes speed ratings and load ratings.
The latest load and inflation table standards michelin continually updates its product information to reflect changes in industry standards so you can stay informed.
