Trailer Tire Wheel Assembly ST175/80R13 6-Ply C 91M - Durable Safety

Our review of the Trailer Tire Wheel Assembly ST175/80R13 finds it best suited for owners who tow modest loads and want a noticeable safety and longevity upgrade over inexpensive trailer tires. The single biggest reason to buy is its reinforced construction: a full nylon cap ply overlay across the entire tread area, which is a meaningful safety feature compared with many alternatives that only reinforce the shoulder. For anyone hauling gear regularly, that extra reinforcement and deeper tread translates to more confidence on the road.

Key Features

• Full Nylon Cap Ply: The cap ply overlay runs across the entire tread area to improve cord protection and reduce separation risk under load.
• Scuff Guard Ring: A unique scuff guard on the tire wall helps protect the sidewall and rim from curb and loading damage.
• Deeper Tread: With 7mm tread depth versus about 5.6mm on cheaper competitors, the tire offers longer wear life and better mileage.
• 6-Ply Rated Performance: The 6 ply rating and load range C deliver dependable load capacity for typical trailer use.
• Wheel Compatibility: The white spoke wheel is configured 5 lug on a 4.5'" PCD with 0 offset for easy bolt-on replacement on many trailer hubs.

Who It's For

The assembly is ideal for weekend boaters, small utility trailer owners, and DIY haulers who need a reliable, longer-lasting tire and wheel without stepping up to heavy-duty commercial sizes. The reinforced cap ply and scuff guard make it a sensible choice for those who tow frequently or carry fragile cargo where sidewall protection and tread life matter.

It is not the best choice for heavy commercial towing or high-speed highway use beyond the rated limits; those users should consider higher load range or specialized commercial trailer tires. Also, buyers seeking low-profile or specialty rims should look elsewhere, since this comes as a white spoke wheel with a standard 5 lug, 4.5'" PCD configuration.

Pros & Cons

Pros

• Full nylon cap ply overlay improves overall tread integrity and safety for trailer loads.
• Deeper 7mm tread provides longer mileage and better wear than many budget tires.
• Scuff Guard ring adds sidewall and rim protection during loading and maneuvering.

Cons

• Rated load range C and speed rating M limit it to moderate towing; not designed for heavy commercial use or sustained high-speed runs.

Specifications

Tire Size	ST175/80R13
Ply Rating	6 (Load Range C)
Load Index	91
Speed Rating	M (up to 81 mph)
Tread Depth	7 mm
Wheel Bolt Pattern	5 lug on 4.5'" PCD
Wheel Style	White Spoke, Offset 0

Our Verdict

The Trailer Tire Wheel Assembly ST175/80R13 is a solid, value-oriented choice for trailer owners who prioritize safety and longer tread life. Its full nylon cap ply overlay and scuff guard ring set it apart from many budget options, making it a smart buy for recreational and light commercial towing where the rated load and speed limits are appropriate.

Frequently Asked Questions

Is this assembly DOT compliant?
Yes, it meets or exceeds applicable DOT standards for dependable performance season after season.

What is the wheel bolt pattern?
The wheel is 5 lug on a 4.5'" PCD with zero offset and a white spoke style.

How does tread depth compare to cheaper tires?
This tire has a 7 mm tread depth versus about 5.6 mm on many lower-cost competitors, which should extend mileage life.