What PSI Should Trailer Tires be Inflated To
Question:
My radial trailer tires have a max load of 1820 at 50psi on the sidewall. With two 3500lb axles my trailer is rated at 7000lbs. With an approximate load of 3000lbs and a trailer weight of 1600lbs I’m still 2400lbs under my max gvwr yet at 50 psi all four tire seem to ride very low with what looks like excessive bulge on the lower sidewall. Any thoughts?
asked by: Kelly
Helpful Expert Reply:
Trailer tires need to run their max psi listing on the sidewall at all times to ensure you get the full weight capacity and prevent premature failure. Your tire capacity is 7,280 lbs since you have four of them which is somewhat close to your 7k trailer GVWR but not close to the weight you state that you tow at. Without seeing how much bulge you have it's hard to say if it's normal or not, but some bulge when a trailer is loaded is not uncommon at all.
![Jameson C](https://images.etrailer.com/static/images/catg/people/371_tn.jpg)
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