Free Country ST235/80R16 Trailer Wheel Assembly - Durable 10-Ply Set

In this review the Free Country ST235/80R16 trailer tire and wheel assembly is judged on durability and load capability for towing and cargo trailers. The bottom line: this set is for trailer owners who need a heavy-duty, DOT-compliant wheel and tire package with a higher tread depth and a 10-ply E rating; the single biggest reason to buy is the combination of 7mm tread depth and a 10-ply, load range E construction that promises longer mileage life under load. The review focuses on build, fitment details, and practical tradeoffs for highway towing.

Key Features

• Deep tread: A 7mm tread depth provides more usable rubber than many competitors, extending mileage life on trailers that see frequent highway use.
• Heavy duty rating: The 10-ply, load range E construction and load index 124 support heavier cargo and give confidence when hauling near capacity.
• Speed capability: The M speed rating allows sustained speeds up to 81mph where appropriate, which is useful for highway towing at legal limits.
• Wheel fitment: The wheel is an 8 lug on 6.5' PCD pattern with 0 offset in a Black Mod finish, simplifying replacement on trailers using that common bolt pattern.
• Safety certified: Meets or exceeds applicable DOT standards so users get a compliant tire for on-road trailer use.

Who It's For

This assembly is best for owners of utility, cargo, and travel trailers that require a robust tire with higher load capacity and deeper tread for longevity. Fleet operators and occasional haulers who prioritize reliability and DOT compliance will appreciate the 10-ply E rating and the 3520 lb max load per tire.

Those who should look elsewhere include trailers that need a different bolt pattern or rim width than the 6.5 in rim specified, and buyers seeking a highway passenger tire with softer ride characteristics; this is a trailer-specific ST tire built for load and durability rather than passenger-car comfort.

Pros & Cons

Pros

• Higher 7mm tread depth means longer tread life compared with thinnertread competitors.
• 10-ply, load range E and load index 124 support heavy cargo and give towing confidence.
• DOT safety certification ensures the tire meets on-road legal standards for trailers.
• Black Mod 8-lug wheel on a 6.5' PCD is a common trailer fit for easier replacement.

Cons

• Fitment is specific: the 8 lug on 6.5' bolt pattern and rim width require verification against the trailer's manual.
• Speed rating M limits sustained speeds to 81mph, which is adequate for trailers but not for higher-speed specialty use.

Specifications

Tire Size	ST235/80R16
Brand	Free Country
Ply Rating	10 (Load Range E)
Tread Depth	7mm
Load Index / Max Load	124 / 3520 lbs
Speed Rating	M (up to 81mph)
Wheel	8 lug on 6.5' PCD, Black Mod, offset 0

Our Verdict

The Free Country ST235/80R16 wheel and tire set is a practical, value-oriented choice for trailer owners who need a durable, high-load tire with deeper tread and DOT compliance; it is good value for heavy use and long mileage, provided your trailer matches the 8-lug 6.5' bolt pattern and you accept the ST tire characteristics.

Frequently Asked Questions

Will this fit my trailer?
Check your owner's manual for bolt pattern and rim width; this set uses an 8-lug on 6.5' PCD wheel and a 6.5 in rim width so measure before purchasing.

Is this tire rated for heavy loads?
Yes, it is 10-ply rated with load range E and load index 124, supporting up to 3520 lbs per tire.

Can I drive at highway speeds?
The tire has an M speed rating (up to 81mph), which is suitable for typical trailer highway towing within legal limits.