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What Pressure to Inflate 205/75-15 Load Range D Tire  

Question:

Hi I put, ST205/75/15 D8 ply tires on my trailer where I only needed a C 6ply tire. The C rated tire calls for 50psi, the D Rated Tire calls for 65psi. What pressure should I run my D tires at? 50 or 65? or somewhere in between? Thank you

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Helpful Expert Reply:

The 205/75-15 load range D tires we offer from Kenda, part # AM10245, Taskmaster # TR20515D and Westlake # LHWL300 should all be inflated to the maximum air pressure listed on the tire sidewall which is 65 psi.

The weight rating for a 15 inch tire in that size with that load rating (2150 lbs) is based on the tire being fully inflated to 65 psi. If the tire is not fully inflated, the tires weight capacity will be unknown which could lead to problems like blowouts or uneven tire wear.

expert reply by:
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Mike L

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