Do I need D tires?
Would I gain much by using load range D tires on a 4500 lb GVWR dual axle trailer? My current load range C tires (Karrier Loadstar 205/75 R 14) have held up well. They have a 1760 lb load rating, w...
Forum Discussion
JIMNLIN wrote:
The advantage of the D tire over a C tire comes only at those higher pressures. Derating the D tire to 50 psi will make for a hotter running tire (50 vs 65) and more parasitic drag for the tow vehicle to over come. The D tire advantage is lost so may as well stick to a C tire in this case for a 4500 lb trailer with 1125 lb tire load requirements.
This ^^^^^^and like mentioned earlier, the D rated will be better on a much heavier trailer, using FULL PRESSURE to reach max rating of 2040.
Jerry
