What Does Load Range Letters (B, C, D) Indicate On a Tire?

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Question:

What the difference between a load C rated tire and a load rated D tire

asked by: Adolfo E

0

Expert Reply:

The load range C and D indicate how many ply layers the tire is constructed of. A load range c tire like the Karrier ST205/75R14 Radial Trailer Tire # AM10234 has 6 layers. These layers give the tire a weight rating of 1,925lbs at 60psi. The load range D version of the Karrier ST205/75R14 Radial Trailer Tire # AM10235 has 8 layers. The additional layers give it a weight rating of 2,200lbs at 75psi. The additional layers allow for more weight and higher PSI as it makes the tire stronger.

While you will see different weight ratings with different size tire the load range indicators are specific to the layers in the tire.

Load Range B - 4 Layers
Load Range C - 6 Layers
Load Range D - 8 Layers
Load Range E - 10 Layers
Load Range F - 12 Layers

expert reply by: Bud M

0

Answer 1

The Load Ranges for trailer tires basically dictate the weight capacity range of the tire. I don't know what size you have, but there would be no reason you couldn't go from a Load Range B tire up to a Load Range C. I attached a couple help…

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Answer 2

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Answer 3

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Answer 4

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 5

Hey Jonathon thank you so much for all of that additional information! To haul your bikes behind your class C Sprinter motorhome, while flat towing your Mini, I recommend the Hollywood Racks RV Rider Bike Rack item #HLY64FR and the Roadmaster Dual…

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Answer 6

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 7

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Answer 8

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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Answer 9

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 10

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 11

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

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Answer 12

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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What Does Load Range Letters (B, C, D) Indicate On a Tire?

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