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:owenssailor wrote:
Regarding the comments about heat buildup and rolling resistance above.
Think of your vehicle tires. P metric tires are rated for say max 44PSI. The vehicle sticker calls for 36PSI for the weight of that vehicle.
Do you inflate to 44psi anyway because that is the max? I think not.
The same applies to trailer tires.
Lightweight P tires on a 1/2 ton truck vs a heavy D tire on a 4500 lb tandem axle trailer with 1125 lb per tire load requirement....pickles vs watermelons in several ways.
Comparing ST tires on a tandem axle trailer to tires on the four corners of a truck, is why there is a lot of controversy. Lot of difference between free rolling, and side scuffing/twisting. Most of us air down the LTs from 80 psi, when not towing, with only issues being a better ride, and better wear.
Yes, with a heavy load on the P tires, inflating to 44 psi can be a great idea.
Jerry
