Choosing the right tires for your trailer is a critical decision for safety and performance on the road. The ST205/75R15 size is a common and versatile fitment for a wide range of trailers, from utility and boat trailers to small campers. With so many options available, selecting a tire that offers the right balance of load capacity, durability, and value can feel overwhelming.
This roundup simplifies your search by highlighting nine of the best 75R15 trailer tires on the market. We’ve compiled a list featuring everything from heavy-duty 10-ply models to trusted name brands, detailing their key features and benefits to help you make an informed purchase for your towing needs.
Our Top Picks for 75R15 Trailer Tires
- Set of 2 Durun ST205/75R15 Radial Trailer Tire
- Libra Trailer Parts set of 4 Heavy Duty Trailer Tires
- Durun Set of 4 Trailer Tires ST205/75R15
- Carlisle Radial Trail HD Trailer Tire-ST205/75R15
- Free Country GRAND RIDE Set 2 ST205/75R15
- Maxxis M8008 Plus ST Radial ST225/75R15
- Freedom Hauler ST Radial ST205/75R15 D RWL
- Carlisle Radial Trail HD Trailer Tire ST205/75R15
- Goodyear Endurance All-Season Trailer Tire ST205/75R15
Set of 2 Durun ST205/75R15 Radial Trailer Tire
This set of two Durun radial trailer tires is engineered to provide a reliable and stable towing experience. Built with an 8-ply Load Range D construction, each tire can support up to 2,150 pounds, making it a strong choice for a variety of trailer applications. The design specifically combines the strength of a bias tire with the smooth-riding durability of a radial.
Constructed from premium rubber-compound materials and reinforced with double steel belts and full nylon plies, these tires are built for superior function and long life. They are created exclusively for trailer use, ensuring the sidewall and compound are optimized for the unique demands of towing, and are not intended for use on passenger vehicles or light trucks.
Libra Trailer Parts set of 4 Heavy Duty Trailer Tires
For those requiring maximum load capacity, this set of four tires from Libra Trailer Parts offers a heavy-duty 10-ply Load Range E rating. With a robust capacity of 2,400 pounds per tire, this set is ideal for larger, heavier trailers that demand superior strength and stability on the road. The inclusion of a full nylon cap ply overlay across the entire tread area is a significant safety upgrade.
This full nylon overlay provides enhanced durability and heat resistance compared to tires that only feature nylon on the shoulder areas. An added “Scuff Guard” ring on the tire sidewall offers better protection against curb damage and other abrasions, helping to maintain the tire’s integrity and appearance over time.
Durun Set of 4 Trailer Tires ST205/75R15
This comprehensive set of four Durun tires provides a complete solution for replacing all the tires on your trailer. Like the two-pack option, these are 8-ply Load Range D radials with a 2,150-pound max load capacity. The set offers great value for those needing to outfit a tandem-axle trailer or keep a full set of spares on hand.
The tires are built with high-quality rubber compounds and are reinforced with double steel belts and full nylon plies for extended durability and stable performance. Designed specifically for trailer service, they focus on providing the robustness needed for towing without the compromises of a multi-purpose tire.
Carlisle Radial Trail HD Trailer Tire-ST205/75R15
The Carlisle Radial Trail HD is a well-regarded name in the trailer tire market, known for its dependable performance. This tire is engineered for improved tread wear, offering users a longer service life and better value over time. Its construction also focuses on greater heat resistance, a critical factor for tires that endure long highway trips.
As an 8-ply rated tire, it provides a solid balance of strength and ride quality. Carlisle’s focus on building tires specifically for the trailer market means the Radial Trail HD is designed to handle the unique stresses of towing, contributing to a safer and more reliable hauling experience.
Free Country GRAND RIDE Set 2 ST205/75R15
The Free Country GRAND RIDE tires are marketed as a premium option with important safety features. This set of two includes an 8-ply Load Range D construction, but its standout characteristic is the full nylon cap ply that spans the entire tread area. This design offers superior strength and helps prevent belt separation.
Similar to other high-end models, these tires also feature a “Scuff Guard” ring on the sidewall to protect against accidental scrapes and damage. This combination of a robust internal construction and external protection makes the GRAND RIDE a compelling choice for trailer owners looking for enhanced security.
Maxxis M8008 Plus ST Radial ST225/75R15
The Maxxis M8008 Plus is a slight deviation in size (ST225/75R15), offering a wider footprint compared to the standard ST205/75R15. This can provide additional stability and load-bearing surface. As an all-season, highway-performance radial tire from a major manufacturer, it brings a reputation for quality and reliability.
Maxxis is known for producing durable tires, and the M8008 Plus is built to meet the demands of trailer towing. Its design focuses on providing a stable and dependable ride, making it a trusted option for trailer owners who prefer brand-name products.
Freedom Hauler ST Radial ST205/75R15 D RWL
The Freedom Hauler ST Radial features a raised white letter (RWL) sidewall design for a classic, custom look. Beyond its appearance, the tire is built with performance in mind, including an enhanced shoulder design that contributes to stable handling and cornering when your trailer is under load.
The ribbed tread pattern, with its prominent center rib, is engineered for straight-line tracking and stability on the highway. This helps reduce trailer sway and provides a more controlled and confident towing experience, which is essential for long-distance travel.
Carlisle Radial Trail HD Trailer Tire ST205/75R15
Another listing for the trusted Carlisle Radial Trail HD highlights its ongoing popularity and availability. This tire is consistently chosen for its focus on core performance aspects like tread life and heat dissipation, which are vital for trailer tire longevity and safety.
As a dedicated trailer tire, it avoids the compromises of a multi-use design, ensuring the construction is optimized for the specific forces encountered during towing. For many users, Carlisle represents a solid mid-range option that delivers proven performance without a premium price tag.
Goodyear Endurance All-Season Trailer Tire ST205/75R15
The Goodyear Endurance is often considered a premium offering in the trailer tire segment. It is marketed as an all-season tire built to withstand high speeds and demanding towing conditions. Goodyear’s reputation for quality precedes this model, which is designed and manufactured in the United States.
It features a robust construction with a focus on durability and resistance to dry rot and weathering. For trailer owners who prioritize brand trust and are looking for a tire that can handle frequent, long-distance, or heavy-load towing, the Goodyear Endurance is a top-tier contender worth considering.
Buying Guide: What to Look For in the Best 9 75R15 Trailer Tires
When I’m looking for new tires for my trailer, I don’t just grab the first set I see. The right tire makes all the difference between a smooth, safe trip and a roadside headache. For a size like 9 75R15, which is common on boat trailers, car haulers, and larger utility trailers, there are a few key things I always check.
First and foremost, I look at the load range. This tells me how much weight each tire can safely carry. It’s usually marked as a letter, like B, C, or D. A Load Range C tire is a common and sturdy choice for many medium-duty trailers. I always add up the total weight of my trailer, including all the gear and cargo, and then divide by the number of tires to make sure I’m well within the tire’s capacity. It’s not a place to cut corners; exceeding the load range is a fast track to a blowout.
Next, I consider the speed rating. Trailer tires aren’t built for high-speed performance like car tires. They have a lower speed rating, often marked as ‘L’ which is good for up to 75 mph. I make sure to match this with my typical towing speed. Pushing a trailer tire beyond its rated speed generates excessive heat, which is the enemy of tire life and safety.
The construction is another big one. I almost always go for radial tires. They run cooler, last longer, and provide a smoother ride than their bias-ply counterparts. For my money, the improved durability and heat resistance of a radial tire are worth it for any serious towing. I also pay close attention to the tread pattern. A tire with a deep, aggressive tread is great for boat ramps or unimproved roads, while a highway-focused tread might offer quieter operation and better fuel economy on long paved journeys.
Finally, I think about the brand’s reputation and the warranty. A company that stands behind its product with a solid warranty gives me peace of mind. I look for brands known for quality manufacturing and consistent performance. Reading reviews from other people who use their trailers in similar ways can also point me toward the best 9 75R15 trailer tires for my specific needs. It’s all about matching the tire’s strengths to my trailer’s job.
Frequently Asked Questions
What is the load capacity of a typical 9 75R15 trailer tire?
The load capacity can vary depending on the tire’s specific load range. However, a very common Load Range C in this size will typically have a load capacity of around 2,150 pounds per tire at its maximum inflation pressure (usually 50 psi). Always check the sidewall of the specific tire you’re considering for its exact load capacity and never exceed it. It’s my practice to choose a tire where my calculated load per tire is at least 10-15% below the maximum rating for a safety buffer.
How long should my 9 75R15 trailer tires last?
Tire life isn’t just about miles; it’s also about age. Even with plenty of tread left, the rubber compounds in tires degrade over time. For trailer tires that might sit for long periods, I generally consider replacing them every 5 to 7 years, regardless of tread wear. In terms of mileage, with proper care (correct inflation, balanced loads, good alignment), you can expect anywhere from 20,000 to 40,000 miles. Sun exposure, underinflation, and overloading are the biggest killers of tire life.
Can I use passenger car tires on my trailer?
I strongly advise against it. Trailer tires are engineered differently than passenger tires. They have stiffer sidewalls to handle the lateral forces and sway of a trailer, and they’re built to carry heavy loads for long distances. Passenger car tires are designed for steering, braking, and comfort, and they can overheat and fail when used in a trailer application. Using the correct ST (Special Trailer) rated tire is a critical safety step.
Why is tire pressure so important for trailer tires?
This is probably the most critical maintenance item. Underinflated tires are the primary cause of trailer tire failure. Low pressure allows the sidewall to flex excessively, which generates immense heat that can quickly lead to a blowout. I check my trailer tire pressures with a reliable gauge before every single trip, when the tires are cold. Running them at the PSI listed on the tire’s sidewall (not the vehicle’s door jamb) is essential for safety, tire longevity, and proper load carrying.
What’s the difference between bias-ply and radial trailer tires?
This comes down to their internal construction. Bias-ply tires have crisscrossing ply cords, making them have a stiffer, sometimes rougher ride, and they tend to run hotter. Radial tires have ply cords that run perpendicular to the direction of travel, which allows the sidewall to flex more independently of the tread. This results in a cooler running temperature, better fuel economy, and a longer tread life. For most modern towing needs, radial tires are the superior choice.
How do I choose between the various top picks for the best 9 75R15 trailer tires?
My choice ultimately depends on my primary use case. If I’m mostly on the highway with a heavy load, I prioritize a tire known for durability and heat resistance, like a Goodyear Endurance. If my budget is a major factor, I look at reliable value options from brands like Kenda. For a trailer that sees muddy boat ramps or rough job sites, I might lean towards a tire with a more aggressive, self-cleaning tread pattern. Reading professional and user reviews that focus on your specific type of towing is the best way to make a final decision.