What is the Correct PSI for a 4.80-12 Trailer Tire

Question:

Want to find out the best tire pressure to run for the best performance and tread life. 150 pound motorcycle trailer, moderately loaded approx 50 -100lbs of cargo

asked by: Jeffrey P

Expert Reply:

The only tire pressure we can recommend for a trailer tire, regardless of load, is the max psi listed on the sidewall. The reason for this is it's what the trailer tire manufacturer recommends as this is what will be needed in order to achieve the max capacity of the tire at any given time. There are many who play with the psi based on load so they get the best mix between comfort and support but simply put, we cannot recommend this as the manufacturer cautions against. Therefore, I cannot give a psi recommendation based on load unfortunately.

The correct psi for a 4.80-12 trailer tire like the Taskmaster 4.80R12 Radial Trailer Tire part # TT48012C will be based on load range, for a load range c which is most common the correct psi is 90.

expert reply by: Conner L