What Is Load Range B on Trailer Tires? – Perfect Info

Are you want to know What Is Load Range B on Trailer Tires? Yes, many times, people tend to confuse the type of tires on their vehicles. Several reasons cause it. These products are similar or almost near in size.

However, things such as ply rating, speed, and weight determine the category of the tire. So, what is load range B on trailer tiers? The fact that you might not be able to distinguish between these brands should not make you feel inferior.

We have you covered in this document and are ready to impart knowledge about the load range B trailer tires. We shall touch on a range of issues concerning this product. Please go through it for more information.

Specification Table of load range B trailer tire

What Is Load Range B on Trailer Tires

The following table will illustrate the specification of load range C trailer tire in a summary form. It touches on specific items about the product that you need to know at a glance.

Maximum weight1,430 lbs.
Maximum pressure35 psi
Maximum speed81 mph.
Ply ratings4

What is load range B on trailer tires?

These trailer tires support a load capacity of approximately 1,430 lbs. per tire. The pressure should be at 35 Psi for them to withstand such weight.

The load capacity on B tires is not constant but much depends on the diameter. Larger ones support more weight as compared to those with small diameters.

It is not advisable, however, to use load range B tires to haul a trailer because it does not support much weight. It can be too costly and risky if you decide to proceed with them.

How much weight can a load range B tire carry?

On average, a load range B tire at a maximum pressure of 35 psi can carry a weight of up to 1,430 lbs. or 990 pounds per tire. They are 4-plies, meaning that the number of rubber layers is also fewer than that of its superiors, such as C, D, E, and F.

As you go high, the ply ratings also increase, meaning there is more weight and stability to move.

What is a ply load on range B tire?

Range B tire is not fit for hauling a trailer; however, it is suitable for small cars such as passenger vehicles. It has a ply rating of 4, meaning it has fewer rubber layers.

They fall in the “standard load” category for light trucks. The maximum pressure capacity is 35 psi.

Can you mix load-range tires on a trailer?

There is no problem having different load ranges of tires on a trailer. However, each axle should be in tandem with the trailer but temporarily. It is not wise to do this because of uneven weight distribution on each tire.

Another limitation of mixing trailer tires is that the lower-rated ones will run hotter and wear out fast. It happens mostly when the truck is transporting a maximum load or traveling long distances. Rough terrain also affects such tires.

4.8-12 trailer tire load range B

These types of tires have a rating of 81 mph. They are 4-ply and carry a maximum weight of 1,430 lbs. with a pressure of 35 psi.

These tires are all-weather traction, with a size of 4.8’’ to 12’’. They are perfect for use in all seasons, except that it works best on the tarmac.

They are ideal for use in light trucks such as passenger vehicles, but some people also place them on trailer axles. Range B tires should not haul large vehicles as they cannot withstand the load for extended periods.

Can you interchange trailer tires with different load capacities?

It is possible to do so, although it is not so advisable. Different tire sizes exert a lot of stress on the axle and damage both the tire and the trailer.

Where possible, you should install similar tire types on your vehicle, ranging from C and above. They should have a maximum psi before engaging them on the road. Low pressure can damage the tires and ream, leading to high operational costs.

Interchanging the tires should be a temporary measure aiming to stabilize the trailer.

Difference between load range B and other tires

Load range B tires are the lowest-rated model. In comparison to C, here are a few differences:

  • C has a higher capacity than B.
  • Their psi rating at maximum is 35. C has 50. As you progress upward, the rating also goes up. Pressure increment has a factor of 15 between different tire rates.
  • The play rating of load range B tire is 4, meaning that it has fewer rubber layers than the higher-rated models. D has 8, while E has 10.
  • The C-rated tires carried a maximum load of 1,430 lbs. E holds 1,520 and D 1,220
  • The speed rating at maximum psi for C is 81 mph. On the contrary, D is 65 mph, and E is 75 mph.
Also Read: What Is Load Range C on Trailer Tires? (Checked)

Frequently asked questions

How long does load range B tire last?

If you use them on trailers, their life diminishes greatly. They could serve for a year. On the other hand, if you put them on light trucks and passenger vehicles, their usefulness will extend for four years.

What is load range B on the trailer tire?

They support a weight of 1,430 lbs. per tire at a maximum pressure of 35 psi.

Is it advisable to use load range B tires on the trailer?

They could serve the purpose; however, it is not advisable. These types of tires are for use in light trucks only

What would happen if I use load range B tire on my trailer?

They overheat over a short period because of the stress on their surface. Continuous usage can make it blow out and cause damage to the axle.

What is the ply rating on load range B tire?

They have the lowest ply rating of 4, meaning that it has the least number of rubber layers in their construction. It is not ideal for light metric, floatation, and numeric light trucks. Heavy vehicles can damage it even when not carrying a heavy load.


Load range B tires are the lowest-rated tires. They are ideal for light truck vehicles. The article gives an insight about; what is load range B on trailer tires. It has a table supporting the explanations. Read through it to understand more.

The FAQ section has all the answers to the questions you might be having. Feel free to leave a comment in the section provided below. Feel free to share this article with your family and friends to assist in decision-making.

I am an engineer and the chief editor of tireslover.com, I am a passionate blogger as well. I am the person who can ensure a perfect, informative, honest, and helpful, guide with 10 years of work experience with different varieties of tires.

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