Truck tires on tt?
We live in Florida & the summer heat destroys our tt tires. We keep them covered & don't drive over 65 mph, and yet, we blow tires every 2 years. We were advised by another RVer to use truck tires o...
Forum Discussion
westend wrote:Also, upon further research, ST tires are subject to the same testing as gold cart tires and wheelbarrow tires..That's not accurate. A trailer ST tire has a regimen of tests done at speed and with load. There is a specific test protocol just like an LT tire has a specific test protocol. Those test parameters have been posted/linked to, previously, on this Forum.
The test is FMVSS 109. Words from this document are:
"This standard applies to new pneumatic radial tires for use on passenger cars manufactured before 1975, new pneumatic bias ply tires, T-type spare tires, ST, FI, and 8-12 rim diameter and below tires for use on passenger cars manufactured after 1948."
FMVSS 109 requires that tires be tested up to 100% of rated load, and no more. So there is nothing in the test that allows for lumps, bumps, and other dynamic forces that might exceed the tire rating during use.
