Tires Load Range b vs c 

Tires Load Range b vs c 
Tires Load Range b vs c

In the tire market, the most common tire load ranges for light trucks are B, C, D, and E. If you are interested in shifting tire sizes or types, understanding load range is an absolute must for you. It is the indicator to determine the maximum level of load that a tire can support in the maximum air pressure. We invite you to take a tour through the load range B vs C confrontation to learn further detail.

Why Compare

The Main Difference between tire load range b and c is that while both of them are meant for light trucks and vans, load range b can carry a higher weight than load range c. Tire load range b can carry more weight than load range c. This is because C tires have a reduced maximum load capacity. However, this does not mean that the C tire is less capable than B – just means it has a lower weight carrying capacity.

Being a non-automotive person, many people suffer from massive confusion to choose between these two types of load ranges. They wonder whether there are any differences apart from the ply ratings and psi ratings. Which one would be long lasting? Which one is harder? What is the basic difference that differentiates the performance? To answer all these relevant questions, a side by side comparison is prepared with all the necessary data. Have a look at the table below, where the key points are highlighted.

Load Range b vs c Table

Load Range B

Load Range C

Ply Rating is 4

Ply Rating is 6

Markingson tire B

Markingson tire C

Maximum Load Pressure is 35 psi (240 kPa)

Maximum Load Pressure is 50 psi (350 kPa)

Longevity is Less Durable

Longevity is More Durable

Maximum load of 1,430 lbs. at 35 p.s.i

Maximum load of 1,760 lbs. at 50 p.s.i

Speed Rating is 50 (km/h)

Speed Rating is 60 (km/h)

From the chart above, it is clear that the main difference lies in the ply rating and psi rating. The range B tires are lower in loading capacity than the range C. Being higher in range, and the latter will last longer consequently. Reasonably the size should remain the same. Only then this condition is applicable.

Speaking of the size of trailer tires, they vary in capacities with different ranges in carrying loads. For example, the Kenda 4.80-12 Bias Trailer Tire with 12-inch white wheel, #AM30660 is a C range tire with a capacity of 990 lbs at 90 psi.

The same tire with the rating of #AM30580 has a capacity of 785 lbs at 60 psi and hence it belongs to range B. The B-rated tires will carry the maximum load if only inflated to 35 lbs per square inch. That means maximum inflation ensures maximum load carrying. In the case of C-rated tires, they should be inflated to a maximum of 50 lbs per square inch.

It is not always recommended to inflate them to the maximum air pressure. It would be best if you only did it when the maximum capacity is required. A tire featuring load measurement B means that it is limited to the load capacity which can be carried at the inflation pressure of 35 psi. These tires can perform best between 100-115 mph.

On the other hand, the C-rated tires remove heat best at the speed of 85-100 mph. Sometimes you may face C1 or C2 as load range. Although they have the same number of piles, they differ in the maximum pressure. That means both C1 and C2 are six-ply rated. But the maximum air pressures are 50 psi and 35 psi, respectively.

If you are curious enough to learn more about the range C LT tires, you may visit our discussion on SL vs xl load range. However, another difference between these two light truck appliances is weight capacity. The 4 ply rated range B tire can sustain a maximum load of 1430 lbs. The 6 ply rated C-rated tire has the ability to support a load of 1760 lbs altogether.

Our Recommendation

While replacing your tires with a new set, try to increase the load limits and ply rating. Never decrease. Also, do not ever exceed the load rating of the wheel while choosing a higher ranged tire. Another noteworthy point we would like to mention. Please remember that a similar size tire with a higher load capacity will not add any capacity to the trailer. To increase capacity, the psi and ply ratings are important.

Final Words

Having mentioned all the key points of both the load ranges, we suggest choosing your appropriate one. Of course, both work amazing for carrying heavy loads. Still, you have all the necessary information to make a wise decision.

Our load range conversation may turn into fruitful documentation only when the consumers are benefited. We hope to clear all the confusion regarding the facts. If you notice any further distinctions, don’t forget to let us know.

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