Load C to load D tire inflation?
So I have Jaxxon tires now on the RV. Rated 81 mph load C @ 1760 each. 205/75 r14 @ 50psi Note: Im not upgrading rims, tires to 15". No way. Cant afford it. The tires are ok. Seems wear for ...
Forum Discussion
For ST tires, there are load/pressure tables to follow. It's not just inflating to max sidewall pressure. And, those tables apply for the standard 65 mph speed rating. But, ST tires can be run faster - add 10 psi (but not over max, so the effect may be to derate the load) and you're good to 75 mph. Also derate the load by 10% and you can go to 85 mph. That's for all of 'em - specs from the TRA Year Book, the industry "bible."
Manufacturers are able to exceed the standard ratings, so there are tires out there with higher speed ratings at the standard load/inflation. If load range C will handle your load, so will LR-D at the same pressure. But if you're near the max load for an LR-C, a LR-D will let you add 10 psi and increase the speed rating.
Manufacturers are able to exceed the standard ratings, so there are tires out there with higher speed ratings at the standard load/inflation. If load range C will handle your load, so will LR-D at the same pressure. But if you're near the max load for an LR-C, a LR-D will let you add 10 psi and increase the speed rating.
