If you’re planning long-distance towing, 8-inch trailer tires can be safe and efficient, but only when you pick quality brands, maintain correct pressure, and avoid overloading. Below is a detailed guide to help you understand their use on highways and the best options available.
8 Inch Trailer Tires for Highway
1. Carlisle Radial Trail HD (4.80-8 / 5.70-8 variants)
Key Features:
- Built for highway and long-distance towing
- Strong radial construction for a smoother ride
- Enhanced heat dissipation
- Excellent tread life
- Good stability at higher speeds
- DOT approved for trailer use
This is one of the most trusted brands for small trailer highway travel.
2. Kenda Loadstar Bias Ply Trailer Tire (4.80-8 Load Range C)
Key Features:
- Load Range C (6-ply rated strength)
- Up to ~745 lbs load capacity (size dependent)
- Strong bias-ply construction for trailer stability
- Designed for utility and boat trailers
- Durable rubber compound for highway heat resistance
- Reliable sidewall strength for towing stress
Kenda is known for dependable trailer tires with long service life.
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3. Greenball Tow-Master 5.70-8 Load Range D
Key Features:
- Load Range D (8-ply rated strength)
- Higher load capacity than standard 8-inch tires
- Reinforced sidewalls for highway towing stability
- Improved resistance to punctures and wear
- Designed for heavier small trailers
- DOT approved for highway use
A strong choice when carrying heavier loads on small trailers.
4. Hi-Run Trailer Tire 4.80-8 Load Range C
Key Features:
- Affordable and widely available
- Bias-ply construction for stability
- Smooth rolling design for highway towing
- Good heat resistance for short to medium trips
- Designed for light utility trailers
- Reliable grip on paved roads
A budget-friendly option for occasional highway towing.
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5. eCustomRim 5.70-8 Trailer Tire Assembly
Key Features:
- Often sold as tire + wheel combo
- Load Range D strength rating
- Pre-mounted and balanced for easy installation
- High-speed rated for trailer use
- Corrosion-resistant steel wheel options
- Strong sidewall support for highway stability
This is ideal if you want a ready-to-install highway setup.
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Are 8 Inch Trailer Tires Good for Highway Driving?
Yes, 8-inch trailer tires can be used on highways, but they are designed mainly for light-duty trailers. These tires are commonly found in sizes like 4.80-8 or 5.70-8 and are built with bias-ply construction for stability.
However, there are important limitations:
- Best for light trailers under 1,500 lbs per axle
- Safe at speeds up to 55–65 mph (some premium models go higher)
- Require proper inflation (usually 60–90 PSI depending on load range)
- Not ideal for heavy cargo or long, continuous, high-speed towing
For highway safety, always choose tires labeled ST (Special Trailer) because they are built for trailer stress conditions like swaying, side load pressure, and heat buildup.
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Key Features to Look for in 8 Inch Highway Trailer Tires
When selecting tires for highway use, focus on these factors:
- Load Range (C or D preferred) – higher ply rating for stability
- DOT approval – required for highway legality
- Bias-ply construction – stronger sidewalls for towing stability
- Heat resistance rubber compound – reduces blowout risk
- Speed rating (M or higher if available)
- Sturdy tread design – improves road grip and tracking
- Anti-aging compounds – protects against dry rot
Highway Safety Tips for 8 Inch Trailer Tires
To ensure safe highway towing, follow these essential practices:
- Always inflate tires to maximum recommended PSI
- Avoid exceeding load capacity limits
- Inspect tires before every trip for cracks or bulges
- Replace tires older than 5–6 years
- Balance load evenly on trailer axles
- Drive at moderate speeds (avoid sustained high-speed runs above rating)
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Pros and Cons of 8 Inch Trailer Tires on Highway
Pros:
- Cheap and widely available
- Easy to replace and install
- Good for lightweight trailers
- Sufficient for short highway trips
- Compact and lightweight design
Cons:
- Limited load capacity
- Lower speed tolerance than larger tires
- More heat buildup on long trips
- Not suitable for heavy-duty hauling
- Faster wear under highway stress
FAQs
What is the maximum speed for 8 inch trailer tires?
Most 8-inch trailer tires are rated for a maximum safe speed of 55 to 65 mph. Some higher-quality DOT-approved models may safely handle up to 70 mph, but sustained high-speed travel is not recommended because small tires heat up faster, increasing the risk of failure.
Are 8 inch trailer tires safe?
Yes, 8-inch trailer tires are safe when used correctly. Safety depends on:
- Staying within load limits
- Maintaining correct tire pressure
- Driving at recommended speeds
- Using DOT-approved ST (Special Trailer) tires
They are safe for light trailers, but not ideal for heavy loads or long-distance highway towing at high speeds.
What is the load range of 8-ply trailer tires?
An 8-ply rated trailer tire typically corresponds to Load Range D. This means:
- Stronger sidewalls than Load Range C
- Higher air pressure capacity (often up to 65–80 PSI or more)
- Greater load carrying ability depending on tire size
Actual load capacity still depends on tire dimensions (for example 5.70-8 vs 4.80-8).
Will 265 fit an 8 inch rim?
No, a 265 tire will not fit an 8-inch rim. The number 265 refers to tire width in millimeters, which is far too wide for such a small rim.
- 8-inch trailer rims typically use tires like 4.80-8 or 5.70-8
- 265 tires are designed for much larger passenger or SUV wheels (usually 17–20 inch rims)
Always match tire size exactly to rim specifications.
What is the best type of trailer tire?
The best trailer tire type is an ST (Special Trailer) tire, not passenger (P) or light truck (LT) tires.
Key reasons:
- Built for towing stability
- Stronger sidewalls to reduce sway
- Designed for heavy vertical load, not cornering
- Better heat resistance for long trips
For highway use, radial ST tires are generally smoother and longer-lasting than bias-ply types.
How fast can I travel with a trailer?
Safe towing speed depends on tire rating and trailer condition:
- Standard trailer tires: 55–65 mph recommended
- Higher-rated radial trailer tires: up to 70 mph (sometimes 75 mph max)
However, safest practice is:
- Stick to 55–60 mph for small 8-inch tires
- Reduce speed in hot weather or heavy load conditions
What is the difference between 6 ply and 8 ply trailer tires?
The difference is mainly strength and load capacity:
6 Ply (Load Range C):
- Lighter load capacity
- Lower PSI rating (around 50–60 PSI)
- Suitable for light trailers
- More flexible sidewalls
8 Ply (Load Range D):
- Higher load capacity
- Higher PSI rating (up to 65–80 PSI)
- Stronger sidewalls for highway stability
- Better for heavier or longer-distance towing
In simple terms: 8-ply tires are stronger, more durable, and better for highway use than 6-ply tires.
Final Thoughts
8-inch trailer tires can handle highway use, but they are best suited for light-duty trailers and short to moderate-distance hauling. The most important factor is choosing a high-quality DOT-approved tire with proper load range (C or D).
If you regularly tow on highways, investing in stronger models like Kenda Loadstar, Carlisle Radial Trail HD, or Tow-Master Load Range D will significantly improve safety, stability, and tire life.
Used correctly, these small tires can still deliver reliable highway performance without issues.
