Choosing the right tires for a heavy 5th wheel is critical for safety and performance. We researched and compared dozens of models using manufacturer specifications, industry load ratings, and aggregated owner feedback. Our evaluation focuses on load capacity, treadwear, stability under heavy loads, and real-world durability. Here are the top picks for your heavy 5th wheel.
| Photo | Product | Score | Buy |
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Goodyear G614 RST Best Overall Load Range G, 14-ply rating, max 110 psi |
9.2 | 🛒 Check Price |
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Michelin XPS Rib Premium Long Hauler Load Range G, 14-ply rating, max 110 psi |
8.9 | 🛒 Check Price |
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Carlisle Radial Trail HD Best Value Load Range E, 10-ply rating, max 80 psi |
8.5 | 🛒 Check Price |
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Sailun S637 Heavy Duty Budget Load Range G, 14-ply rating, max 110 psi |
8.2 | 🛒 Check Price |
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Maxxis M8008 ST Reliable Runner Up Load Range E, 10-ply rating, max 80 psi |
7.9 | 🛒 Check Price |
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Hankook Dynapro HT All-Season Versatility Load Range E, 10-ply rating, max 80 psi |
7.6 | 🛒 Check Price |
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Westlake ST Radial Budget Pick Load Range E, 10-ply rating, max 80 psi |
7.3 | 🛒 Check Price |
1. Goodyear G614 RST: Best Overall
The Goodyear G614 RST is a top contender for heavy 5th wheels, with a Load Range G rating and 14-ply construction that handles the heaviest rigs. In our evaluation, owner feedback consistently highlights its ability to maintain stability and low heat buildup even during long summer drives. The tire’s sturdy steel belts and reinforced sidewalls provide confidence when carrying near-maximum loads.
However, the G614 RST comes at a premium cost, and some users noted a slightly stiffer ride on rough pavement. It may not be the best choice for those who prioritize a cushioned ride over maximum load capacity. Skip this pick if you only occasionally tow heavy loads or if your 5th wheel’s weight is well within standard tire limits.
- Durable steel-belted construction for extreme load capacity
- Excellent heat dissipation reduces blowout risk on long hauls
- Consistent performance reported by owners over thousands of miles
Pros: Industry-leading load capacity (3,750 lbs per tire at 110 psi); Proven durability in heavy towing applications
Cons: Higher price point compared to some competitors
2. Michelin XPS Rib: Premium Long Hauler
The Michelin XPS Rib is a premium choice for heavy 5th wheels, offering excellent longevity and a smooth ride. Our research shows that owners who log many miles appreciate the tire’s low rolling resistance and consistent wear pattern. The stone ejectors help prevent punctures, a common concern on gravel roads. Safety ratings are high due to the tire’s stability under load.
On the downside, the XPS Rib is among the most expensive options on the market. For owners who don’t tow extremely heavy loads or who replace tires less frequently, the cost may be hard to justify. Skip this pick if you are on a tight budget or if your 5th wheel’s weight is moderate.
- Advanced tread compound for long tread life
- Stone ejectors protect casing from debris damage
- Smooth, quiet ride on highways
Pros: Exceptional treadwear warranty (up to 7 years); Low rolling resistance improves fuel economy
Cons: Very expensive, often double the price of comparable tires
3. Carlisle Radial Trail HD: Best Value
The Carlisle Radial Trail HD is a budget-friendly option that still provides solid performance for many heavy 5th wheels. With a Load Range E rating, it’s best suited for trailers with a GVWR up to about 14,000 lbs. Owner feedback indicates good tread life and minimal vibration when properly inflated. It’s a popular choice among those who tow occasionally or have lighter heavy 5th wheels.
However, this tire is not designed for the heaviest rigs. If your 5th wheel’s GVWR exceeds 14,000 lbs, you’ll need a higher load range. Additionally, some users reported sidewall cracking after several years, so regular inspection is advised. Skip this pick if you need maximum load capacity or tow in extreme conditions.
- Affordable price without sacrificing essential load capacity
- Good tread life for lighter heavy 5th wheels
- Widely available and easy to find
Pros: Excellent value for the price; Reliable performance for standard heavy 5th wheels
Cons: Not suitable for the heaviest 5th wheels (over 14,000 lbs GVWR)
4. Sailun S637: Heavy Duty Budget
The Sailun S637 offers a compelling mix of high load capacity and affordability. In our evaluation, it stands out as a heavy-duty option for those who need Load Range G without paying a premium. Owner feedback often praises its ability to handle heavy 5th wheels on highways, with stable handling and low heat buildup. It’s a popular choice among full-timers on a budget.
However, some users noted that the tread wears faster than expected, especially on rough roads. Balance issues have been reported, requiring careful mounting. Skip this pick if you prioritize maximum tread life or a perfectly smooth ride.
- Excellent load capacity at a lower price than competitors
- Good heat dissipation for long trips
- Strong steel belt construction
Pros: Very competitive price for a Load Range G tire; Solid performance for heavy loads
Cons: Tread life may be shorter than premium brands; Some owners report balance issues
5. Maxxis M8008 ST: Reliable Runner Up
The Maxxis M8008 ST is a well-known tire in the RV community, often recommended for its reliability and even treadwear. For heavy 5th wheels that are on the lighter end of the spectrum (GVWR under 14,000 lbs), this tire offers a good balance of performance and cost. Owner feedback frequently mentions stable towing and minimal road noise.
However, its Load Range E rating means it cannot handle the heaviest 5th wheels. If your rig is near maximum capacity, you’ll need a higher load range. Additionally, some users have reported sidewall bubbles after road hazards, so careful tire maintenance is essential. Skip this pick if you need a higher load capacity or tow in rugged terrain.
- Proven tread design for even wear
- Good stability at highway speeds
- Widely used and trusted by RV owners
Pros: Reliable performance with consistent quality; Good for lighter heavy 5th wheels
Cons: Lower load capacity limits its use to lighter rigs; Not ideal for extremely heavy loads
6. Hankook Dynapro HT: All-Season Versatility
The Hankook Dynapro HT is a highway terrain tire that can serve as a all-around option for lighter heavy 5th wheels, especially if you use the same tires on your tow vehicle. Its M+S rating provides some traction in light snow, and owner reviews note a quiet, comfortable ride. For those who occasionally tow a moderate 5th wheel, this tire offers convenience.
However, it is not designed for the extreme loads of a heavy 5th wheel. Its Load Range E rating and passenger tire construction may lead to faster treadwear and increased risk under maximum loads. Skip this pick if your 5th wheel is consistently heavy or if you need a dedicated trailer tire with maximum durability.
- M+S rated for light snow and mud traction
- Comfortable ride with low noise
- Good for mixed use (towing and daily driving)
Pros: Multi-purpose for use on tow vehicle or trailer; Better wet traction than many ST tires
Cons: Not a dedicated trailer tire; may wear faster under heavy loads; Lower load capacity than specialized heavy 5th wheel tires
7. Westlake ST Radial: Budget Pick
The Westlake ST Radial is a budget-friendly tire suitable for those with lighter heavy 5th wheels who tow infrequently. In our research, it offers the basics: Load Range E capacity at a very low price. Some owners have reported satisfactory performance for short trips and moderate loads. It can be a viable option if you need to replace tires quickly on a tight budget.
However, quality control is a concern, with some users experiencing premature wear, sidewall issues, or balancing problems. This tire is not built for the sustained high speeds or heavy loads of a heavy 5th wheel. Skip this pick if you tow often, carry heavy loads, or prioritize safety and reliability over cost.
- Very affordable price point
- Basic load capacity for lighter heavy 5th wheels
- Decent tread life for occasional use
Pros: Lowest cost option in this category; Adequate for light-duty heavy 5th wheels
Cons: Lower quality control; some users report defects; Not recommended for heavy or frequent towing
Frequently Asked Questions
What is the most important factor when picking tires for a heavy 5th wheel?
Load capacity is the most critical factor. Ensure the tire’s load range (e.g., E, F, G) and maximum load rating exceed your 5th wheel’s gross vehicle weight rating (GVWR) per tire. Also consider ply rating and maximum inflation pressure.
Are ST (Special Trailer) tires better than LT (Light Truck) tires for a heavy 5th wheel?
ST tires are specifically designed for trailers with stiffer sidewalls and higher load capacities at lower speeds. For heavy 5th wheels, ST tires are often preferred, but LT tires with appropriate load range can also work. Check the tire’s load and speed ratings.
How often should I replace tires on my heavy 5th wheel?
Even with good tread, replace trailer tires every 5-7 years due to age-related degradation. Inspect regularly for cracks, bulges, or uneven wear. Heavy use may require more frequent replacement.
Can I use passenger car tires on a heavy 5th wheel?
No. Passenger tires lack the load capacity and sidewall strength needed for heavy 5th wheels. Always use tires rated for trailer service (ST) or heavy-duty light truck (LT) tires with sufficient load range.
What tire pressure should I run for a heavy 5th wheel?
Inflate to the maximum pressure listed on the tire sidewall when towing at full load. For lighter loads, consult the tire manufacturer’s load inflation tables. Never exceed the maximum pressure. Proper inflation prevents heat buildup and blowouts.
Our Verdict
After researching and comparing specifications and owner feedback, the Goodyear G614 RST is our top pick for heavy 5th wheels due to its exceptional load capacity, durability, and heat dissipation. For those seeking a more affordable option, the Carlisle Radial Trail HD offers great value for lighter heavy 5th wheels. Always match tire load rating to your trailer’s GVWR for safe towing.
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