What is the Difference Between Load Ranges for Trailer Tires
Question:
What is the Difference Between Load Range R and D ST175/80D13 Trailer Tires
asked by: Ed F
Expert Reply:
I cannot say I have ever heard of an R load range trailer tire. Generally, though, the further the letter is in the alphabet the higher the capacity is. If we look at size 175/80-13 then load range D tire # AM1ST77 that you referenced is rated for 1,610 pounds at 65 psi. A load range B in the same size is rated for 1,100 pounds at 35 psi. And a load range C of the same size is rated for 1,360 pounds at 50 psi.
I have included a couple of links on trailer tire sizes and tires in general. Ideally you want to match or exceed the capacity of the trailer when choosing tires. Going to a higher capacity or larger tire will not increase the capacity of the trailer.
Product Page this Question was Asked From
Loadstar ST175/80D13 Bias Trailer Tire - Load Range D
- Trailer Tires and Wheels
- Tire Only
- Bias Ply Tire
- Load Range D
- 175/80-13
- 13 Inch
- M - 81 mph
- Kenda
more information >
Continue Researching
- Article: Trailer Tire Sizing
- Article: How to Tell the Weight Rating of a Trailer Axle
- Article: Wiring Trailer Lights with a 6-Way Plug (It's Easier Than You Think)
- Q&A: Folding Tonneau Cover and Ladder Rack for My 2022 Nissan Titan XD with 6-1/2 Foot Bed
- Q&A: Comparing a 185/80-13 Tire to the 175/80-13 Size on Americana Trailer Tire AM1ST77
- Article: 7 Common Questions Everyone Has About Trailer Tires
- Article: Don't Break Your Pipes or Your Wallet: Winterize and De-Winterize Your RV
- Q&A: What is the Difference Between Load Range B and C Trailer Tires
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Q&A: Replacement Shock for Dexter Axle 052-003-00
- Q&A: Recommended Replacement For A SHURflo 2088-403-444 Water Pump
- Q&A: What is the Torque Requirement for 1/2 Inch U-Bolts for Trailer Suspension
- Article: 5 Tell-Tale Signs It’s Time to Replace Your Trailer’s Leaf Springs
- Q&A: How To Choose The Correct Toilet Flange Replacement For Your Trailer