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Check out what hitting a pothole can do to a tire

Roger Marble -
Some people want to claim a tire is "defective" and present the tire for a free replacement because of a bulge in the tire...

Valve stems, cores and caps, ‘Oh my!’ And how tight is ‘tight enough’?

Roger Marble -
Some rubber valve stems have a metal center and some valves are all metal except for a rubber gasket. The metal part of valves...

When to replace tires? Find out here

Roger Marble -
Here's a post I saw recently on an RV forum regarding when to replace tires: I heard somewhere that people are changing out the tires...

Why are tire ply rating and load range different?

Roger Marble -
Here is a message from a reader on his confusion on a tire's "load range," "load capacity," and "ply rating": "Well, I finally figured out...

RV Tire Safety: How fast can you drive safely on ST-type tires?

Roger Marble -
There are still a number of folks asking about tire operational speed and specifically with regard to ST-type tires. I hope this post will...

RV Tire Safety: A tire ‘blowout’ is actually something else

Roger Marble -
A tire "blowout" is actually from a puncture, run-low situation or cutting impact. Sometimes people report, "I had a blowout. I always check my air,...

How fast can you safely travel with ST-type tires?

Roger Marble -
Is it OK to run 70 or 80 mph or faster with ST-type tires? Yes—If you believe in MAGIC! I continue to read posts on...

Should you adjust tire pressure when temps get colder?

Roger Marble -
I ran across a series of posts on an RV forum on the need to adjust tire pressure because of changes in ambient temperature. First,...

Expert explains what causes tire failure

Roger Marble -
Tires do not fail because of "magic." They do not fail because the tire company has a certain ZIP code. In my 50 years...

Warning: Dangerous tire information on the internet

Roger Marble -
I just read a post on an "RV Information" newsletter about tire pressure on a hot day. In my opinion, some of the information...

RV Tire Safety: Where to find tire inflation info, and much more

Roger Marble -
After I published information on what the "MAX" stamped on tires means on a number of RV forums, I had a few folks thank...

How to identify an improper trailer brake setting

Roger Marble -
This is just a quick post regarding the "evidence" you might need to confirm improper brake force setting on a trailer. This is definitely "brake...
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