Quote:
Originally Posted by Camp CA
Lots of hideout moels https://www.rvusa.com/rv-guide/specs...m1496-y2018-t5, which one do you have? Reason is to confirm the GVWR and minimum tire load. Then select a tire with a load rating that exceeds the tire load by a safe margin. At the very least select a D load tire. For example, a ST225 -75R15 D has a 2540 lb load capacity at 65 psig and a ST225-7515 E has a 2830 lb load capacity at 80 psig https://tirepressure.org/st225-75r15. Also, an ST tire is a better selection for a travel trailer vs. LT since it reportely has a stronger sidewall https://www.etrailer.com/question-32...20most%20cases. Finally, agree with others to purchase all new tires, including spare, that are the same. For comparison, my fifth wheel trailer tires are ST with a G rated with 4080 lb load capacity at 110 psig. |
RV trailers are not designed for original equipment tires that support the trailer’s GVWR. The trailer certification process for tires is simple. The trailer manufacturer MUST publish a recommended trailer tongue weight. When that weight is added to the trailer’s total certified GAWRs, the result must not be less than the trailer’s certified GVWR. Therefore OEM/OE tire fitments are required to carry the maximum load of the vehicle’s certified GAWRs.
The 10% RVIA tire load capacity reserve recommendation does not affect FMVSS standards. RVIA is a private organization that oversees RV trailer safety for its members. They have no government regulatory authority. However, there is a “catch 22” factor that will ultimately require load capacity reserves. Within the existing standards there is a standard for replacement tires. It reads – in part – that replacement tires MUST provide a load capacity equal to or greater than what the OE tires provided at their recommended cold inflation pressures.