Do I need D tires?
Would I gain much by using load range D tires on a 4500 lb GVWR dual axle trailer? My current load range C tires (Karrier Loadstar 205/75 R 14) have held up well. They have a 1760 lb load rating, w...
Forum Discussion
waynefi wrote:
What exactly is load range D anyway? I know it will allow 65 psi inflation, but what is the load limit?
All ST & LT tires have a maximum load capacity determined by their manufacturer. Inflation pressures are needed for the tire to provide various levels of load capacity. A load range lettering system was established by the entire industry to simplify and standardize recommended tire inflation pressures. For each maximum load range there is a letter on the sidewall of the tire along with the inflation pressure necessary to achieve maximum load capacity from that tire.
Here are the standard load range letters and their PSI ratings for radial ply tires. LRC=50 PSI - LRD=65 PSI - LRE=80 PSI - LRF=95 PSI - LRG=110 PSI.
