Specific trailer tire question
We have a 2013 Surveyor Sport 220 that came with Power King 205/75R14 tires on alloy wheels. These tires are load range C and made in China (with all the pursuant paranoia). Before we head out on some...
Forum Discussion
Most steel RV wheels are OK for 80 psi .
The wheel manufacturers have a bigger issue with the weight carried by the wheel rather than the psi .
Some folks have been confused by reading a chart that says 1860 # at 50 psi , thinking that this indicates a maximum wheel psi .
Instead what those charts are stating that the tire needs to be inflated to 50 psi in order to achieve the 1860 # rating .
The tire is always the weakest link in the tire / wheel maximum psi rating .
Only if the wheels state " maximum 50 psi " are they limited .
Aluminum wheels are placarded more often for maximum psi .
When aluminum wheels fail they do not explode catastrophically due to too much psi .
More common is some kind of wheel strike against a curb or barrier .
When Aluminum wheels fail they generally just do not hold pressure due to hairline cracks at the junction of the vertical and horizontal surfaces .
Most aluminum wheels are placarded for E rating or 80 psi .
There are exceptions .
The exceptions are placarded on the wheel .
The wheel manufacturers have a bigger issue with the weight carried by the wheel rather than the psi .
Some folks have been confused by reading a chart that says 1860 # at 50 psi , thinking that this indicates a maximum wheel psi .
Instead what those charts are stating that the tire needs to be inflated to 50 psi in order to achieve the 1860 # rating .
The tire is always the weakest link in the tire / wheel maximum psi rating .
Only if the wheels state " maximum 50 psi " are they limited .
Aluminum wheels are placarded more often for maximum psi .
When aluminum wheels fail they do not explode catastrophically due to too much psi .
More common is some kind of wheel strike against a curb or barrier .
When Aluminum wheels fail they generally just do not hold pressure due to hairline cracks at the junction of the vertical and horizontal surfaces .
Most aluminum wheels are placarded for E rating or 80 psi .
There are exceptions .
The exceptions are placarded on the wheel .
