Trailer Tires — Durable, Road-Ready, and Expertly Matched
When you’re hauling, trailer tires (ST-rated) do a different job than passenger or LT truck tires. They’re engineered for higher load capacity, reduced sway, and heat resistance under sustained loads. At Performance Plus Tire, we make it easy to choose the right size, Load Range (C/D/E/F/G), and construction—so you tow with confidence and protect what you’re carrying.
What Sets Us Apart
- Verified fitment: We confirm ST sizing, load capacity, wheel width, and speed rating for your trailer before fulfillment.
- Purpose-built choices: Radial ST for highway stability and heat control; Bias-ply for rugged low-speed utility and farm use.
- Clear value: Good–Better–Best tiers surface real savings across premium and discount options—no guesswork.
- Helpful humans: Experts on load calculations, inflation guidance, wheel compatibility, and warranty support.
How to Choose Trailer Tires
- Confirm the size: Example
ST205/75R15 (or bias ST205/75D15). Stick with ST-rated tires for trailers.
- Match Load Range: Choose C/D/E/F/G to meet or exceed the GAWR and expected cargo. Never reduce load capacity.
- Pick construction: Radial for highway heat resistance and tread life; Bias-ply for off-pavement duty and heavy utility at lower speeds.
- Mind speed rating & PSI: Follow the printed speed symbol and cold inflation on the sidewall; load capacity depends on pressure.
Fitment & Safety Checklist (We Verify Before Shipping)
- ST size and overall diameter vs. fender and frame clearance.
- Load capacity per tire vs. axle rating (GAWR) and total trailer weight.
- Wheel diameter/width and valve type; torque specs and TPMS (if equipped).
- Sidewall speed rating and cold inflation to meet required load.
Best Uses by Type
- Utility / Cargo / Enclosed: Radial ST for highway miles; bias-ply for frequent yard/site use.
- Boat Trailers: Radial ST with corrosion-resistant wheels; inspect after immersion and storage.
- Travel Trailer / RV: Radial ST with higher Load Range (often D/E) for stability and heat control.
Maintenance Tips for Longer Life
- Inflate cold to spec: Check before each trip; capacity falls with under-inflation.
- Balance & rotate (if twin axles): Helps reduce cupping and heat build-up.
- Inspect age & condition: Check DOT date code; many owners replace around 5–6 years or at the first signs of cracking/bulges.
- Store smart: Cover from UV, reduce load while stored, and keep tires off bare ground when possible.
Ready to equip your trailer? Compare sizes, Load Ranges, and tread designs—our fitment team will make sure your trailer leaves with the right rubber and the right pressure.
Reviewed by the Performance Plus Tire Fitment Team
FAQs: Trailer Tires
Can I use passenger or LT truck tires on a trailer?
Use ST (Special Trailer) tires. They’re built for trailer loads and reduced sway. Passenger/LT tires are not engineered for trailer axle dynamics.
Radial vs. bias-ply—what’s better?
Radial ST tires run cooler and track better on highways. Bias-ply can be tougher for slow-speed utility and off-pavement use. Choose based on duty cycle.
What Load Range do I need?
Sum the tire capacities on an axle to meet or exceed the GAWR. Don’t downgrade Load Range; consider moving up if you’re near limits.
What PSI should I run?
Inflate to the tire’s cold pressure that meets your required load (often the sidewall max for ST tires). Recheck before trips and with temperature swings.
How fast can I tow on ST tires?
Obey the tire’s printed speed rating (symbol) and your trailer limits. Heat rises with speed and load—stay within all posted limits for safety.
When should I replace trailer tires?
Replace for visible damage, irregular wear, or aging signs. Many owners plan replacements around 5–6 years even with good tread, especially for RVs stored outdoors.
