What Are The Alpha-Numerical Codes On ST Tires?
Updated 04/17/2017 | Published 04/15/2017
Question:
I have a 1968 vintage Frolic trailer with wood paneling inside. The tires are ST225/75R15. Following this description is the following: LRE 10PR 117/112L. Does this mean I am to put 117 pounds of air pressure in the tire? This seems high.
asked by: Steve
Helpful Expert Reply:
No. The 117/112 is not the psi. It is the load index. The L is the speed rating of 75 mph. The load index is the rated load capacity for single and then dual tires on each side of the axle. 117=2833 lbs. The maximum psi should be listed on the tire sidewall and is also the recommended psi for the tires to operate.
For instance the Loadstar ST225/75D15 Bias Trailer Tire - Load Range D # AM1ST96 is similiar and rated for 65 psi max.
Product Page this Question was Asked From
Loadstar ST225/75D15 Bias Trailer Tire - Load Range D
- Trailer Tires and Wheels
- Tire Only
- Bias Ply Tire
- Load Range D
- 225/75-15
- 15 Inch
- M - 81 mph
- Kenda
more information >
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