Weight causing tires to rub inside of trailer

Tireman9 wrote:

MM49 wrote:

Fisherguy wrote:

MM49 wrote:
The trailer might of had the LT tire change done on it.
MM49

What's that sposed to mean?

When LT tires are installed on a RV a larger size is required to meet the load requirements. Correct This could be the source of the clearance problems. Also Correct unless axle to frame measurements have changed.

The LT tires are also a different compound that increases the traction to the road. Could you provide your test data to support this theory? This could cause the larger tire to rub during a turn from the tire not sliding as required.
The larger tire is also a lever that flexes the axle during a turn, longer lever, more axle flex, more tire movement.
Overall it's not a good idea to change the tire size from the OEM's selection.
MM49

Since we are talking Lateral traction forces, you Also if a frame is designed so close to the limit they are knowingly selling a product that cannot tolerate normal stresses seen in normal usage. Different road surfaces across the US have measured traction coefficients that vary by over 200% so a few % variation from different tires is not meaningful when we are talking frame failure. I again ask who has filed a complaint with NHTSA and provided vehicle VIN # in the last 2 years?

Tire coefficient of traction is optimum at rated pressure. It will drop with too much or too little pressure. There is much more to this discussion than just rubber compound. The design of the side wall construction on the ST tire is stronger and more flexible also. The tire needs to flex in unnatural shapes as the tire is slide around a corner. When you install a larger tire with different characteristics you will get a different outcome.
MM49