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What Are Bias Ply Tires Used For?

By Tire Agent Staff

August 11, 2023

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In the world of tires, tire manufacturers highlight the unique set of characteristics that set 'bias ply' tires apart from their modern counterpart, the radial tire. These two tire constructions have distinct attributes that make them suitable for specific applications.

Related read: What are radial tires?

Now let's explore what bias ply tires are, where they shine and how they differ from radial tires.

Bias Ply Tires Defined

Bias ply tires, often referred to as "cross-ply" tires, represent a traditional tire construction method. In this design, the tire's internal body plies, or layers of fabric, run diagonally across the tire, forming a crisscross pattern.

Here is an image explaining a radial tire vs a bias ply tire differences

Bridgestone radial nonradial tire ill...

Source: Firestone

The angles of the plies alternate between each layer, creating a robust and sturdy tire structure. his bias ply tire construction offers durability and load-carrying capacity, making these tires well-suited for specific applications.

Best Uses For Cross Ply Tires

Bias ply tires are designed to excel in specific scenarios due to their inherent characteristics.co These tires are commonly found in applications where strength and toughness are paramount.

Off-road vehicles, agricultural machinery, construction equipment and trailers are prime examples of where bias ply tires shine. Their rugged construction makes them excellent for handling heavy loads and rough terrains, where their sturdiness is essential for tackling challenging environments.

Also, bias ply tires are preferred by some classic car enthusiasts who want to preserve the authentic look and feel of their classic cars. The retro appearance of bias ply tires adds an extra touch of nostalgia to these automotive treasures.

What Is the Difference Between Radial vs Bias Ply Tires?

While radial and bias ply tires serve their purposes, they differ significantly in construction and performance characteristics.

  1. Construction: The most notable distinction between the two lies in their internal structure. Radial tires, the modern standard used in passenger cars, have their body plies running radially from bead to bead, perpendicular to the tread. This design, often reinforced with steel belts, reduces rolling resistance and heat buildup, improving fuel efficiency and longer tread life. In contrast, bias ply tires have diagonal plies, which can cause more heat generation and higher rolling resistance. radial vs nonradial tire bridgestone ...
  2. Ride comfort: Radial tires offer a smoother and more comfortable ride due to their flexible sidewalls and lower heat buildup. Bias ply tires, while rugged, tend to be stiffer and transmit more road irregularities to the driver.
  3. Handling and traction: Radial tires provide better handling, cornering stability, and traction, especially on wet or slippery road surfaces. Their increased footprint and improved contact with the road enhance grip and maneuverability. Bias ply tires, however, may struggle to provide the same level of handling and traction.

Are There Winter Bias Ply Tires?

Winter-biased all-season tires seamlessly blend cold-weather competence with year-round versatility. Crafted to tackle chilly challenges, they feature advanced rubber compounds engineered for enhanced traction on frosty roads. Siped tread patterns optimize grip on ice and snow while maintaining agility in milder seasons.

This intelligent fusion ensures confident winter drives without sacrificing warm-weather performance. Ideal for regions with moderate snowfall and fluctuating temperatures, winter-biased all-season tires embody adaptability, catering to drivers seeking a balanced solution for diverse climates.

Are Cross Ply Tires Suitable For Trailers?

When choosing tires for your trailer, the decision between bias ply and radial tires warrants careful consideration. Bias ply tires have a sturdy and time-tested construction with diagonal layers of fabric, making them a viable option for specific trailer applications.

For an example of a bias ply tire, see Carlisle Sport Trail bias ply trailer tire, which features a robust build.

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Among the various types of tires, bias ply tires are well-suited for heavy-duty hauling and rugged terrains. Their robust build provides excellent load-carrying capacity and durability, making them a preferred choice for trailers used in construction, agriculture and off-road scenarios.

If your trailer frequently spans uneven surfaces or carries substantial weight, bias ply tires can withstand the demands of such conditions.

However, it's important to note that bias ply tires do have some drawbacks. They tend to generate more heat during travel, which can lead to faster wear and reduced fuel efficiency compared to radial tires. Additionally, bias ply tires might offer a slightly rougher ride and reduced fuel economy, which could impact the overall comfort of your towing experience.

If you prioritize strength, durability and heavy-duty performance for challenging terrains and loads, bias ply tires can be a reasonable choice. But if you value improved fuel efficiency, a smoother ride and better handling, you might want to consider the alternative — radial tires — for your trailer.

Always evaluate your trailer's requirements and your preferences before making the final decision. For even more on trailer tires, check out our complete guide to trailer tires here.


Photo 29659090 © Kathryn Sidenstricker | Dreamstime.com