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HomeTagsRoger Marble

Tag: Roger Marble

‘Defective’ tires: Just what is the ‘defect’?

Roger Marble -
I have heard people claim they had a "defective" tire when they post about a tire failure. I have even addressed claims from lawyers...

Why a safety margin on tire inflation is important

Roger Marble -
If you have read any of my posts here at RVtravel.com or on my blog RVTireSafety.net or on any individual post on the various...

How much air pressure is too much in RV tires?

Roger Marble -
With the introduction of Tire Pressure Monitoring Systems (TPMS), many RV owners are presented with what to them is new information on the status...

How are tire load ratings calculated?

Roger Marble -
I had a question asked recently on an RV Forum about tire load ratings. Mike posted: Tireman9 — I've seen your posts with this "minimum inflation"...

How much air should there be in my RV’s GY Endurance tires?

Roger Marble -
Denise asked: My TT came with cheap tires from China. I did a few short trips and one long one, NJ to FL. I had...

RV Tire Safety: Tires – Dull or dynamic? Part two

Roger Marble -
Following is Part two of an article I was asked to write for a tire industry trade publication in the U.K., “Tyres International.” I...

RV Tire Safety: Tires – Dull or dynamic? Part one

Roger Marble -
Following is an article I was asked to write for a tire industry trade publication in the U.K., “Tyres International.” I thought you might...

RV Tire Safety: Have a broken wheel stud? Here is what I would do…

Roger Marble -
I recently read a post about someone discovering a broken wheel stud on their RV. The wheel had been changed after there was a...

RV Tire Safety: Which brand tire should I buy?

Roger Marble -
"Which brand tire should I buy?" This reasonable question was asked recently. I thought I might share my answer as maybe some readers of...

RV Tire Safety: Six blowouts! Help! “I’m at my wit’s end”

Roger Marble -
Here is a series of posts on tire blowouts from an RV forum. I am inclined to think that the experiences are not that...

RV Tire Safety: Tire autopsies of run low flex failure and impact break

Roger Marble -
I thought it might help to show a couple of examples of what was observed while doing a "tire autopsy." First tire autopsy A tire would...

RV Tire Safety: Is there an “optimal inflation” for RV tires … or not?

Roger Marble -
Is there an "optimal inflation" for RV tires? Many think the number in an RV sticker (aka tire placard) or in tire Load & Inflation...

RV Tire Safety: Why you should have road hazard tire insurance

Roger Marble -
Are you prepared for the cost of tire failure? When buying new tires for your RV, one thing to consider is road hazard tire...

RV Tire Safety: RV weighing worksheet and selecting the PSI for your RV

Roger Marble -
What do we mean when we say "4-corner weights? You have probably heard about the advisability of learning the actual load on each tire position...

RV Tire Safety: What are the letters and numbers on the tire sidewall?

Roger Marble -
Many times I am asked what seems like a simple question, such as "How much air should I run in my 16" tire?" Or...

RV Tire Safety: The tire says “Max Press”. Should I bleed out air?

Roger Marble -
Many people make the mistake of bleeding air out of their tire when the "Hot Pressure" rises above the number on the tire sidewall....

RV Tire Safety: Uneven wear on trailer tires may not be due to defect

Roger Marble -
If you have one shoulder of a trailer tire showing more wear than the other, as seen here, you probably have camber wear. Unlike...

RV Tire Safety: Importance of reporting defective tires

Roger Marble -
I have asked RV owners who had tire failures if they reported the failures to NHTSA (National Highway Traffic Safety Administration) or to the...

RV Tire Safety: Setting inflation pressure step-by-step

Roger Marble -
While I have posted a number of times on how I would set tire pressure, this topic seems to be a recurring question. So...

RV Tire Safety: Do you “read the label” on your tires?

Roger Marble -
Do you read the label on your tires like you would read the labels in a grocery store? A question was posed on what...

RV Tire Safety: A tire failed. What should you do to prevent another one?

Roger Marble -
You just had a tire failure. Did you take appropriate action to prevent a reoccurrence? If someone has a problem with a tire, it would...

RV Tire Safety: More on adjusting tire pressure due to temperature changes

Roger Marble -
Here is a post I read recently about tire pressure and temperature changes: Very informative thread. If I may throw in my recent experience... One thing...

RV Tire Safety: Why is my TPMS giving different readings than my hand gauge?

Roger Marble -
This question was asked recently: "The readings between my TPMS and my quality tire gauge are always different. On cold days there is even...

RV Tire Safety: Correcting misinformation about tire inflation and load limits

Roger Marble -
Do you run your vehicle at or above engine redline? Why not? OK. As a tire design engineer and someone with RV tire experience,...

RV Tire Safety: Why aren’t there more tire recalls?

Roger Marble -
I have seen this question on an RV forum: "Why aren't there more tire recalls?" It was asked by someone complaining that there were...

RV Tire Safety: What margin to use for Low Pressure Warning on TPMS?

Roger Marble -
In response to a reader from Australia with a question on TPMS Low Pressure Warning level, I responded as follows. We need to separate the...

RV Tire Safety: Why do ST-type tires have more pressure gain than LT-type tires?

Roger Marble -
The main reason for ST-type trailer tires to gain more pressure than the LT tires, is that they are forced to support more load...

RV Tire Safety: Interply shear – Am I spreading fear?

Roger Marble -
On an RV forum I saw some posts about tire failures: There were some posts that mentioned the RV total weight capacity or Gross Vehicle...

RV Tire Safety: RVer complains, “I have too much tire pressure gain”

Roger Marble -
Here is a post on an RV forum with a question about too much tire pressure gain: I've often wondered why the tires on my...

RV Tire Safety: What is the “root cause” of a tire failure?

Roger Marble -
"Root cause" is the initiating condition or first cause. Someone having a temperature is not a root cause or proof of an infection, but...

RV Tire Safety: “Tire failed for no apparent reason.” False.

Roger Marble -
As most of you know, I follow a number of RV forums. Here is a post that caught my eye. Maybe some can learn...

RV Tire Safety: Is the temperature reading of your TPMS correct? Probably, BUT…

Roger Marble -
In my opinion, Tire Pressure Monitoring Systems (TPMS) are of little value when it comes to temperature warning for tires. Same for Infrared Temperature...

RV Tire Safety: Simple question: Why do tires fail?

Roger Marble -
Why do tires fail? In reality, tires fail for a relatively small number of root cause reasons that can be discovered. However, it does...

RV Tire Safety: “I just had a tire failure for no reason”

Roger Marble -
"I just had a tire failure for no reason." If you follow any RV forums you probably see a statement like this every few...

RV Tire Safety: Should I move from Load Range D to LR-E?

Roger Marble -
The following question about tire Load Range is from an RV Forum on trailers. Originally posted by NavyL: If the trailer came with Load Range D...

RV Tire Safety: Videos from Goodyear worth watching

Roger Marble -
By Roger Marble I strongly recommend every RV owner watch these four videos from Goodyear. They cover: Tire sizing; Tire storage, cleaning and removal; Tire...

RV Tire Safety: Is a 10-ply tire better than a Load Range E tire?

Roger Marble -
By Roger Marble I received this question about tire ply recently: I've read many comments on various RV forums about truck tires vs. "motorhome" tires as...

RV Tire Safety: Another post on cold tire inflation. Is there just TMI?

Roger Marble -
By Roger Marble A few times each week there are posts on various RV forums asking about tire inflation. There continue to be many readers...

RV Tire Safety: Are you sure you can change a flat tire?

RV Travel -
By Roger Marble Can you change a flat tire? Have you ever given this question much thought? Your answer will depend on your answer to...

RV Tire Safety: Will your tire blow up if you inflate it above its “Max PSI”?

RV Travel -
By Roger Marble Your tire says "Max xx PSI at Max Load of yyy Pounds". Will your tire blow up if you go above xx...

RV Tire Safety: Why did my RV have three tire blowouts?

RV Travel -
By Roger Marble I came across another post on an RV forum. I am sorry to report that many of the posters did not understand...

RV Tire Safety: Q&A’s on tire inflation; RVs are not the same as HD trucks

RV Travel -
By Roger Marble In this post I respond to an RVer's multiple questions on tire inflation, and explain how HD (heavy duty) trucks and RVs...

RV Tire Safety: Age-old question: More on tire pressure

RV Travel -
By Roger Marble Please forgive me if I sound like a broken record. I found another post on an RV forum on inflation. It's almost...

RV Tire Safety: Tire loads and inflation—a refresher

RV Travel -
By Roger Marble I just read another post on a FB page where more incorrect information on tire loads and inflation was published. Soooo, let's...

RV Tire Safety: Critical information is on vehicle certification stickers

RV Travel -
By Roger Marble The vehicle certification sticker has some critical safety information you should know. I don't expect you to memorize all the information. However,...

RV Tire Safety: Question about LTX vs. Agilis line of Michelin tires

RV Travel -
By Roger Marble I recently read this question on an Airstream forum: "I am replacing the Michelin LT225/75R/16/MS2 tires on my Airstream Serenity 29. I...

RV Tire Safety: How old is “too old” when it comes to tires?

RV Travel -
By Roger Marble I read this comment on an RV motorhome forum about tire life: "I continue to read posts indicating that tires will calendar out...

RV Tire Safety: What’s the best tire for my trailer?

RV Travel -
By Roger Marble "What's the best tire for my trailer?" We have all probably seen this question on an RV forum or two. The problem...

RV Tire Safety: Types of tire valve stem extensions and which to use

Roger Marble -
By Roger Marble Valve stem extensions come in two "flavors." One is a longer metal stem, and the other is some sort of "extender" that...

Do you need to “Balance” RV trailer tires?

Roger Marble -
This is a question I see occasionally. The answers range from "Never" to "Always". IMO I think the reason many do not balance or...
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