Increasing Tire Load Range
Updated 04/06/2010 | Published 04/03/2010
Question:
I want to replace all 3 tires on my boat trailer. Im considering going to a load range C. The original tires are a B. Is this a good move?? Are the tires about the same size with a difference in the load range?? Any help or comments will be greatly appreciated !! Thanks!
asked by: Dan T
Expert Reply:
The load range refers to the horizontal and sidewall strength of the tire. Each load range letter refers to a specific number of tire plies and a load pressure measured in pounds per square inch (psi). A load range of B is 4 ply with a 35 psi load pressure. A load range of C indicates 6 ply with a 50 psi load pressure. The tires are dimensionally the same size, the tire with the heavier load rating essentially has a tread that is 2 plies thicker.
You should not have any problem using the C rated tire.
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