Elk Ridge tire failure
I have a Elk Ridge 29 footer. In the last 9 months I have had to tire failure, both on the right side. The first was a blow out on the inside which required nothing more than changing it. The secon...
Forum Discussion
JIMNLIN wrote:Francesca Knowles wrote:JIMNLIN wrote:
The ElkRidge 29RKSA has a 13000 GVWR and comes with ST235/85-16 E on 6k axles. The LT235/85-16 E or the LT245/75-16 E at 3042 lbs per tire is a excellent upgrade from this ST tire.
The ST's he's being advised to take off are rated at 3420 pounds, almost 400 pounds more each than the above LT's. It's my understanding that replacement tires of equal or more carrying capacity are usually called for.
Tire selection ...., the sum of the maximum load ratings of the tires fitted to an axle shall be not less than the gross axle weight rating (GAWR) of the axle system as specified on the vehicle's certification label required by 49 CFR part 567 (GAWR/GVWR certification placard).
The trailer in question may have 6000 lb axle with a 13000 GVWR. Using a 20 percent hitch weight of 2600 lbs leaves 10400 on the trailers 6k axles.
Mainstay for 20-30 years for a 3/4 ton truck with 6000-6084 RAWR was the good old LT235/85-16 E tire or the LT245/75-16 E tire. They also have worked great on a 6000 lb trailer axle in the same time frame.
Were all guessing here as the OP hasn't made it clear which 29' trailer he has.
Yeah, and who knows if he'll even be back.
One thing, though:
Matching axle capacity works from a design standpoint, but many/most tire replacement places have as standard policy that they will NOT put replacement tires on that are a lower stated load range than original equipment. They couldn't care less as a rule whether one puts LT's, ST's, or for that matter P's on a trailer, but they care very much about those load numbers.
Here quoting from Toyo Tire training page;
Toyo Tires wrote:
Load Capacity of Replacement Tires
Replacement tires must have equal or greater load carrying capacity compared to the original tires fitted to the vehicle.
WARNING!
Installers carry a significant risk of liability if they fit replacement tires with a lower load capacity than the original tires
And you'll see similar language at all other major websites.
Most shops just won't perform such an installation, but there's always the option of carrying the wheels in oneself, I s'pose. Or just going to a higher load range LT, of course.
