Best Travel Trailer Tires

Choosing the best travel trailer tires is paramount for safe and enjoyable adventures. This comprehensive guide covers everything from understanding ST vs. LT tires and crucial factors like load capacity and speed ratings, to essential maintenance tips that prolong tire life and prevent common issues. Equip yourself with the knowledge to make informed decisions and hit the road with confidence.

Ah, the open road! The promise of adventure, new sights, and the freedom that only a travel trailer can offer. But before you hitch up and head out on your next grand journey, let’s talk about one of the most critical, yet often overlooked, components of your rig: the tires. They’re the only part of your travel trailer touching the road, and their condition directly impacts your safety, fuel efficiency, and overall towing experience. Choosing the best travel trailer tires isn’t just about avoiding a flat; it’s about ensuring peace of mind for you and your loved ones.

It’s easy to think all tires are created equal, but that couldn’t be further from the truth, especially when it comes to trailers. Car tires, truck tires, and trailer tires are engineered for very different purposes. A car tire is designed to turn, brake, and accelerate. A trailer tire, however, is designed to carry heavy loads in a relatively straight line, resisting sway and managing the forces of towing. Equipping your travel trailer with the wrong kind of tires, or tires that aren’t up to the task, is an open invitation for trouble, ranging from poor handling to dangerous blowouts. That’s why understanding and selecting the best travel trailer tires is a foundational step for any RVer.

This comprehensive guide is here to walk you through everything you need to know about travel trailer tires. We’ll explore the different types, key factors to consider when making your choice, popular options on the market, essential maintenance tips, and how to troubleshoot common problems. By the end of this read, you’ll be equipped with the knowledge to confidently choose and care for the best travel trailer tires for your specific rig, ensuring many miles of safe and enjoyable travels.

Key Takeaways

• ST (Special Trailer) Tires are Essential: Always choose ST tires specifically designed for trailers due to their stiffer sidewalls and higher load capacity, which prevent sway and ensure stability. LT (Light Truck) tires can be an option for very heavy trailers but generally don’t offer the same sway resistance.
• Load Capacity is King: Never exceed your travel trailer’s Gross Axle Weight Rating (GAWR) or the tire’s maximum load capacity. Overloading is a leading cause of tire failure. Match the tire’s load range (e.g., C, D, E) to your trailer’s needs.
• Maintain Proper Tire Pressure: Under-inflation is the biggest enemy of travel trailer tires, causing excessive heat buildup, premature wear, and blowouts. Always inflate to the maximum cold PSI listed on the tire’s sidewall, not the vehicle’s placard.
• Inspect Regularly and Thoroughly: Before every trip, check for cuts, cracks, bulges, uneven wear, and embedded objects. Don’t forget to check tire pressure with a reliable gauge, including the spare.
• Age Matters More Than Tread: Travel trailer tires often “age out” before they “wear out.” Rubber degrades over time due to UV exposure and heat. Most manufacturers recommend replacing tires every 3-5 years, regardless of tread depth.
• Understand Speed Ratings: While most ST tires have a speed rating of 65 mph (105 km/h), some newer models offer higher ratings. Adhering to the tire’s speed rating is crucial for safety and tire integrity, especially on long trips.
• Proper Storage Extends Life: When not in use, protect your travel trailer tires from direct sunlight and extreme temperatures. Using tire covers and keeping them off concrete can significantly extend their lifespan.

Quick Answers to Common Questions

What does ST stand for on a tire?

ST stands for “Special Trailer,” indicating that the tire is specifically designed for use on trailers, not passenger vehicles or light trucks.

How often should travel trailer tires be replaced?

Most manufacturers recommend replacing travel trailer tires every 3 to 5 years, regardless of tread wear, due to rubber degradation from age, UV exposure, and heat.

Is it okay to use car tires on a travel trailer?

No, it is generally not recommended to use passenger car tires (P-metric) on a travel trailer. Car tires are not designed to handle the constant heavy loads and lateral forces unique to trailers, which can lead to instability and blowouts.

What is the most common cause of travel trailer tire blowouts?

Under-inflation is the leading cause of travel trailer tire blowouts. It causes excessive heat buildup within the tire, weakening its structure and leading to catastrophic failure.

Should I inflate my travel trailer tires to the PSI on the sidewall or the trailer placard?

You should always inflate your travel trailer tires to the maximum cold PSI listed on the tire’s sidewall. The trailer placard often lists a minimum pressure, but travel trailer tires perform best and generate less heat when inflated to their maximum capacity.

Understanding Travel Trailer Tires: ST vs. LT

When you start looking for new tires, you’ll quickly encounter two main designations: ST and LT. Knowing the difference is crucial for your travel trailer.

What are ST (Special Trailer) Tires?

ST stands for “Special Trailer,” and these tires are specifically engineered for trailers. They are designed to carry heavy loads without being driven by an engine. This means they have stiffer sidewalls to prevent trailer sway, a wider contact patch for stability, and are built to handle constant vertical load. They typically have a lower speed rating than passenger car tires, often around 65 mph (105 km/h), though some premium models now offer higher ratings. The construction prioritizes load-carrying capacity and stability over traction or handling, which are less critical for a non-powered wheel. For most travel trailers, ST tires are the gold standard and generally represent the best travel trailer tires option.

What are LT (Light Truck) Tires?

LT stands for “Light Truck” and these tires are designed for vehicles that both carry heavy loads and drive, such as pickup trucks and SUVs. While they also have robust construction and good load capacity, their design incorporates features for steering, braking, and acceleration. Their sidewalls are more flexible than ST tires to improve ride comfort and handling for the tow vehicle. In some specific cases, like very heavy fifth-wheel trailers or certain large travel trailers, owners might consider LT tires, especially if they struggle to find ST tires with sufficient load capacity. However, if you opt for LT tires on a trailer, you generally need to de-rate their load capacity by 10% to account for the different forces they experience on a trailer axle compared to a powered axle.

Why the Distinction Matters for Travel Trailers?

The fundamental difference lies in their purpose. ST tires are built for the unique stresses of trailer life: constant vertical load, scrubbing during turns, and minimizing sway. Their stiffer sidewalls are key to preventing the “wallowing” sensation you might feel if using passenger car tires on a trailer. LT tires, while robust, aren’t optimized for these specific trailer demands. Using the correct tire type is a critical first step in ensuring you have the best travel trailer tires for your adventures.

Key Factors When Choosing the Best Travel Trailer Tires

Visual guide about Best Travel Trailer Tires

Image source: pinaywise.com

Beyond ST vs. LT, several other factors play a vital role in determining the right tires for your rig. Overlooking any of these could compromise safety and performance.

Load Capacity (Ply Rating/Load Range)

This is arguably the most important factor. Every travel trailer tire has a maximum load capacity, indicated in pounds or kilograms. This needs to meet or exceed your trailer’s Gross Axle Weight Rating (GAWR). Tires also come with a “Load Range” (e.g., C, D, E, F), which is equivalent to older “ply ratings.” A higher load range means the tire can carry more weight at a higher inflation pressure. Always ensure the combined load capacity of all tires on an axle comfortably exceeds the GAWR for that axle. Running even slightly under capacity can lead to premature failure.

Speed Rating

As mentioned, most ST tires have a speed rating of 65 mph (105 km/h), meaning they are designed to perform safely up to that speed. Exceeding this limit generates excessive heat, which can lead to tire failure. While some premium ST tires now offer higher speed ratings (e.g., N for 87 mph), always check the sidewall and adhere to the rating. Driving within the tire’s specified speed limit is a simple yet effective way to extend their life and maintain safety, contributing to the longevity of your best travel trailer tires.

Tire Size (Matching Your Trailer)

Your new tires must be the correct size for your travel trailer’s wheels and fender wells. The size is typically found on the tire’s sidewall (e.g., ST205/75R15).

• ST: Special Trailer
• 205: Section width in millimeters
• 75: Aspect ratio (sidewall height as a percentage of width)
• R: Radial construction
• 15: Rim diameter in inches

Do not change tire size without consulting your trailer manufacturer or a tire professional, as it can affect trailer height, clearance, and potentially lead to rubbing.

Construction Type (Radial vs. Bias-Ply)

• Radial Tires (R): These are the most common type today. They have cords running radially from bead to bead, often with additional belts under the tread. Radials run cooler, offer a smoother ride, and typically have a longer tread life. They are generally considered the best travel trailer tires for most applications.
• Bias-Ply Tires (-): These have cords running diagonally across the tire from bead to bead. They often have stronger sidewalls, which can be beneficial in certain off-road or very heavy-duty, low-speed applications. However, they tend to run hotter and provide a harsher ride, making them less suitable for typical highway travel trailer use.

Brand Reputation and Warranty

While it might be tempting to save a few dollars on off-brand tires, reputable brands often invest heavily in research, development, and quality control. Brands like Goodyear, Carlisle, Maxxis, and Marathon have a proven track record in the travel trailer tire market. A good warranty also speaks volumes about a manufacturer’s confidence in their product. Researching reviews and choosing a trusted brand can save you headaches down the road.

Top Contenders for Best Travel Trailer Tires

While there’s no single “best” tire for every trailer, certain brands and models consistently receive high praise from experienced RVers due to their reliability, load capacity, and performance.

Goodyear Endurance

Considered by many to be a top-tier choice for ST tires, the Goodyear Endurance is manufactured in the USA and is known for its robust construction, higher speed rating (up to 87 mph for some sizes), and excellent heat dissipation. Its Durawall technology helps prevent sidewall damage. Many new travel trailers come equipped with these tires, reflecting their strong reputation. They are an investment but often seen as worth it for peace of mind.

Carlisle Radial Trail HD

Carlisle offers a range of solid travel trailer tire options, and the Radial Trail HD is a popular choice for its balance of performance and value. It boasts increased load capacities, improved heat resistance, and a durable tread compound. These tires are often chosen by RVers looking for a reliable, mid-range option that offers significant improvements over basic factory-installed tires.

Maxxis M8008 ST Radial

The Maxxis M8008 has long been a favorite among travel trailer owners, known for its consistent quality and durability. It features a double steel-belted construction and a full nylon cap ply for increased strength and stability. While it typically has the standard 65 mph speed rating, its reliability and resistance to heat buildup make it a strong contender for those seeking dependable performance.

Sailun S637T (for heavier trailers/fifth wheels)

For owners of larger, heavier travel trailers or fifth wheels, the Sailun S637T is an LT tire that often gets mentioned. While technically an LT tire, its all-steel construction and high load capacity make it a robust option that many feel offers superior strength for heavier applications, often exceeding what’s available in ST tires. Remember the 10% de-rating rule if using LT tires on a trailer.

Michelin Agilis CrossClimate (for specific heavy-duty needs)

Another premium LT option for heavier applications, the Michelin Agilis CrossClimate is praised for its durability, all-weather performance, and strong construction. While a more expensive choice, its reputation for quality and longevity makes it attractive for those who prioritize maximum reliability for very heavy loads. Again, de-rating applies here.

When considering the best travel trailer tires, remember to match the tire to your specific trailer’s weight and your towing habits, rather than simply going for the most expensive option.

Tire Maintenance: Extending the Life of Your Best Travel Trailer Tires

Even the most expensive, highly-rated tires won’t last if they aren’t properly maintained. Good maintenance habits are crucial for safety and extending the life of your travel trailer tires.

Proper Inflation is Paramount

Under-inflation is the number one cause of travel trailer tire failure. It leads to excessive heat buildup, increased rolling resistance, reduced fuel economy, and premature wear, especially in the shoulders of the tire. Always inflate your tires to the maximum cold PSI (pounds per square inch) indicated on the tire’s sidewall, not the pressure listed on your trailer’s placard (which is often a minimum). Check tire pressure before every trip, when the tires are cold, using a reliable tire gauge. A Tire Pressure Monitoring System (TPMS) is a highly recommended investment for real-time monitoring while on the road.

Regular Inspections

Make it a routine to inspect your tires thoroughly before each trip and periodically during longer journeys. Look for:

• Cracks: Especially on the sidewalls and between the treads, indicating dry rot or aging.
• Cuts and Punctures: Any foreign objects embedded in the tread.
• Bulges or Blisters: Signs of internal structural damage, indicating imminent failure.
• Uneven Wear: Could indicate improper inflation, alignment issues, or suspension problems.
• Tread Depth: Use a tread depth gauge. While travel trailer tires often age out before they wear out, adequate tread is still important.

Weight Distribution and Loading

Proper weight distribution within your travel trailer is vital. An imbalanced load can put undue stress on certain tires or axles, leading to uneven wear and potential failure. Ensure your trailer’s weight is distributed evenly, and never exceed your trailer’s Gross Vehicle Weight Rating (GVWR) or individual tire load capacities. Overloading is a fast track to tire problems, even with the best travel trailer tires.

Storage Practices

When your travel trailer is parked for an extended period, especially in sunny or hot climates, take steps to protect your tires.

• Tire Covers: Protect against harmful UV rays, which accelerate rubber degradation (dry rot).
• Keep Off Concrete: If possible, park on gravel or wood blocks. Concrete can wick plasticizers out of the rubber, drying it out.
• Inflate to Max PSI: Even in storage, maintain proper inflation to prevent flat spotting.

When to Replace Your Tires

Unlike car tires that wear out their tread, travel trailer tires often “age out.” The rubber compounds degrade over time due to exposure to UV, heat, and chemicals, even if the tread looks fine. Most tire manufacturers recommend replacing travel trailer tires every 3-5 years, regardless of how much tread is left or how few miles they’ve traveled. Check the date code (DOT code) on the sidewall to determine the tire’s age. It’s a four-digit number indicating the week and year of manufacture (e.g., 2221 means the 22nd week of 2021). Don’t gamble with old tires; timely replacement is a key part of having the best travel trailer tires.

Common Tire Problems and How to Avoid Them

Even with the best intentions, tire problems can arise. Knowing what to look for and how to prevent them can save your trip.

Blowouts

A sudden, violent tire failure, often caused by under-inflation (leading to excessive heat), overloading, or striking road debris.

• Prevention: Maintain correct cold tire pressure religiously. Never overload your trailer. Drive at or below the tire’s speed rating. Inspect tires for damage before every trip. A TPMS is invaluable for early detection of pressure drops.

Uneven Wear

Tires can wear unevenly across the tread (center vs. edges) or on one side.

• Prevention:
  • Center Wear: Often indicates over-inflation. Adjust to the manufacturer’s recommended cold PSI.
  • Shoulder Wear (both edges): Typically due to under-inflation. Increase pressure to the maximum cold PSI on the tire sidewall.
  • One-Sided Wear: Could point to alignment issues with your trailer axles or suspension problems. Have your trailer axles inspected by a professional.

Dry Rot (Cracking)

This is the cracking of the rubber, usually visible on the sidewall and between the treads, caused by UV exposure, ozone, and age.

• Prevention: Use tire covers when parked. Keep tires properly inflated. Replace tires every 3-5 years, regardless of tread depth.

Overloading

Exceeding the tire’s or trailer’s weight capacity. This puts immense strain on the tire’s structure, causing excessive heat and increasing the risk of failure.

• Prevention: Know your trailer’s GVWR and GAWR. Weigh your loaded trailer at a certified scale. Distribute weight evenly within the trailer. Never exceed the load capacity printed on your tires.

Valve Stem Leaks

Small, often unnoticed leaks from the valve stem can lead to gradual under-inflation.

• Prevention: Use metal valve stems, especially with a TPMS. Ensure valve caps are tight. Replace rubber valve stems when replacing tires, or sooner if they show signs of cracking.

Conclusion

Choosing and maintaining the best travel trailer tires is not just a recommendation; it’s a fundamental aspect of safe and enjoyable RV travel. By understanding the critical differences between ST and LT tires, diligently checking load capacities and speed ratings, and committing to a routine of proper inflation and regular inspections, you are investing in the safety of your family and the longevity of your adventures.

Remember, tires are your travel trailer’s only connection to the road. Don’t let a small oversight lead to a big problem. Be proactive, be informed, and choose wisely. With the right set of well-maintained travel trailer tires, you can truly embrace the spirit of the open road, confident that you’re rolling on a foundation of safety and reliability. Happy travels!

Frequently Asked Questions

What’s the difference between a load range and ply rating?

Load range and ply rating are essentially interchangeable terms that describe a tire’s load-carrying capacity. Older tires used “ply rating” (e.g., 8-ply), while modern tires use “load range” (e.g., Load Range D), which indicates an equivalent strength and maximum inflation pressure, not the actual number of plies.

Can I mix different brands of tires on my travel trailer?

While generally not ideal, you can mix tire brands on a travel trailer as long as all tires on the same axle are identical in size, load capacity, and construction type (radial/bias-ply). It’s always best practice for all tires on the trailer to match if possible, but the crucial point is matching per axle.

What is a TPMS and do I need one for my travel trailer?

A TPMS (Tire Pressure Monitoring System) is a device that monitors your tire pressure and temperature in real-time. While not legally mandated for trailers in many regions, it is highly recommended as a safety device, as it can alert you to low pressure or overheating before it leads to a blowout.

How do I find my tire’s date of manufacture (DOT code)?

The DOT code is a series of letters and numbers molded into the sidewall of your tire. The last four digits of this code represent the week and year of manufacture (e.g., 2221 means the 22nd week of 2021). This helps determine the tire’s age for replacement purposes.

Should I use nitrogen instead of air in my travel trailer tires?

Using nitrogen can offer benefits like more stable tire pressure over temperature changes and slower leakage, but it’s not strictly necessary. Properly maintained tires with regular compressed air are perfectly fine. The key is consistent monitoring and maintaining the correct pressure, regardless of the gas used.

What should I do if I have a tire blowout on the road?

If you experience a blowout, remain calm and keep a firm grip on the steering wheel. Do not slam on the brakes; instead, slowly reduce speed, maintaining control, and gently steer to the shoulder or a safe pull-off area. Activate your hazard lights, and then safely proceed with changing the tire.