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
On GY Endurance tires, if you buy new ones in the same width & dia. as your old ones, they actually go up one load range and is why they have a higher psi. That's a good thing. If you run their Endurance LRD at the full 80 psi, you'll get a higher load capacity rating and higher reserve load capacity which helps reduce the risk of a "blowout". The only concern is if your rims can handle the higher psi.
If you can't or just don't want to run the higher psi, just lower the pressure back down to 65 psi and you'll end up with the load capacity you used to have on your old tires. Keep in mind that you want at least 15% reserve load capacity on your tires to reduce the risk of a tire failure. Many TT manufacturers use tires with a lot less and some almost zero reserve capacity which is asking for tire failures. It's always a good idea to take a TT to a scale to get the actual weights and know where you are relative to tire ratings (and a few other things).
Roger Marble talks about psi & Endurance tires in his blog here.
If you can't or just don't want to run the higher psi, just lower the pressure back down to 65 psi and you'll end up with the load capacity you used to have on your old tires. Keep in mind that you want at least 15% reserve load capacity on your tires to reduce the risk of a tire failure. Many TT manufacturers use tires with a lot less and some almost zero reserve capacity which is asking for tire failures. It's always a good idea to take a TT to a scale to get the actual weights and know where you are relative to tire ratings (and a few other things).
Roger Marble talks about psi & Endurance tires in his blog here.
