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Tag: Roger Marble

What’s a good tire pressure monitor system for a Class A?

RV Tire Safety with RV tire expert Roger Marble What's a good Tire Pressure Monitor System for a Class A? I had this question asked on...

Tire max load, max inflation and cold inflation confusion continues

RV Tire Safety with RV tire expert Roger Marble The following is from an RV forum: "My understanding is that the number on the side of the...

RV Tire Safety: Lug nut torque – a critical safety item

With RV tire expert Roger Marble Those that have read their owner's manual may recall seeing a mention of the need to check the lug...

Why inflate motorhome tires differently than trailer tires?

RV Tire Safety with RV tire expert Roger Marble I found the following comment in a thread on an RV owners' forum after there were comments...

Video: Modern radial tire assembly – worldwide

RV Tire Safety with RV tire expert Roger Marble Here is a very good 10-minute video from a number of different companies on how modern radials...

Is there a critical do-not-exceed tire temperature?

RV Tire Safety with RV tire expert Roger Marble Question: Hi Roger, I just read your article on sidewall strength and “blowouts.” You mentioned that if the temperature...

Tire sidewall “strength” – What does that mean?

RV Tire Safety with RV tire expert Roger Marble I note that on many RV forum posts on the topic of tire "blowouts," there are often...

Are some tires from China better than others?

RV Tire Safety with RV tire expert Roger Marble Here's another question about tires from China: "Tireman – In the post you linked further up the thread...

Why not just inflate tires to the certification label level?

RV Tire Safety with RV tire expert Roger Marble I continue to read RV forum posts from people asking about what inflation to use. Tire sidewall,...

Why are there no tire comparison reviews?

RV Tire Safety with RV tire expert Roger Marble I occasionally see people complaining about the lack of meaningful tire comparisons. I guess they think someone...

Is a “plug” or “liquid sealant” an acceptable tire repair?

RV Tire Safety with RV tire expert Roger Marble I got a reply to a post in an RV Forum regarding the use of a "plug...

Do your tow vehicle and trailer match?

RV Tire Safety with RV tire expert Roger Marble Here is some good advice (that I agree with) which I found on the Web. But first,...

Have you “tested” your TPMS?

RV Tire Safety with RV tire expert Roger Marble Like anything mechanical or electrical, TPMS parts can die, wear out or malfunction. While I am not...

Why the differences in expected tire life based on type of usage?

RV Tire Safety with RV tire expert Roger Marble Question: I saw a recent question on a forum regarding tire life: "I was wondering if someone could...

ST tire speed rating, and why you should stay under 65 mph

RV Tire Safety with RV tire expert Roger Marble Point of clarification. The Tire and Rim Association load formula used by the industry for ST-type tires...

Tire brand confusion: Who makes which RV tires and where?

RV Tire Safety with RV tire expert Roger Marble Confused about who makes which RV tires and where they're made? This info should help. Here's a quote...

Do you have “big wheels” on your car or tow vehicle? Why?

RV Tire Safety with RV tire expert Roger Marble When people shop for a car or truck very few pay attention to the tires other than...

Do you need an external spare tire cover?

RV Tire Safety with RV tire expert Roger Marble I was recently reading a forum where the owners of one specific brand of trailers were complaining...

Trailer tire inflation – It appears Goodyear agrees with Roger

RV Tire Safety with RV tire expert Roger Marble I have written a number of articles on the advisability of running trailer tires at the inflation...

Valve stems, cores and caps, “Oh my!” – And how tight is “tight enough”?

RV Tire Safety with RV tire expert Roger Marble Yes, some rubber valve stems have a metal center and some valves are all metal except for...

How much “reserve load” or “headroom” is enough in a tire?

RV Tire Safety with RV tire expert Roger Marble I've been following an RV forum discussion on how much extra load capacity or "reserve load" or...

Are ST tires the “best” tires made?

RV Tire Safety with RV tire expert Roger Marble One fact that many choose to ignore, or just don't think about, is that very few RVs...

Optimum, appropriate or required inflation? What’s on a tire placard?

RV Tire Safety with RV tire expert Roger Marble I have seen people use a variety of words to describe the inflation numbers on vehicle tire...

RV Tire Safety – “China bomb” tires and McDonald’s fries? What?

By Roger Marble I continue to see people talking about "China bomb" tires. As an engineer, this makes me a bit sad that so many...

Small single-axle travel trailer tire inflation, and more

RV Tire Safety By Roger Marble I have received questions on tire inflation from folks with small single-axle travel trailers, boat trailers and utility trailers. There...

Tire ramps or blocks may damage your tires

RV Tire Safety with RV tire expert Roger Marble Last year I was at a large RV event and noticed many Class B RVs were using...

What you should know about different tire types

RV Tire Safety with RV tire expert Roger Marble Whenever you ask a question about tires, whether you ask about price, load capacity or inflation, the...

Can a TPMS provide advance warning of a belt/tread separation?

RV Tire Safety with RV tire expert Roger Marble I read the following on a forum for one brand of trailers where they were discussing the...

How to save money and time on spare tires

RV Tire Safety with RV tire expert Roger Marble I was reading another RV forum thread on spare tires. The questions about cost and difficulty in...

Did you really read your RV owner’s manual?

RV Tire Safety with RV tire expert Roger Marble Yeah, I know that if you are like me you were given a stack of owner's manuals...

RV tires: “safety factor” versus “reserve load” – What’s the difference?

RV Tire Safety with RV tire expert Roger Marble The dictionary offers this definition of "safety factor": "The ratio of the maximum stress that a structural...

Video shows why tire interply shear happens

RV Tire Safety with RV tire expert Roger Marble As we head into the Christmas holiday, most of us are not thinking about our tires. Here is...

Preserving your RV’s tires when parking long-term

RV Tire Safety with RV tire expert Roger Marble Many RV owners are "winterizing" their RVs. Even if you are in Arizona, you might be getting...

Tips for better fuel economy, especially for Class A motorhomes

RV Tire Safety with RV tire expert Roger Marble Smartway is a program from the EPA that is supposed to help truckers select tires that have...

Several Q&A’s regarding buying RV tires

RV Tire Safety with RV tire expert Roger Marble Questions: A motorhome owner needs to change his 245/70R19.5 LR-F tires and asked some questions: Will the...

Setting tire pressure on cold days?

RV Tire Safety with RV tire expert Roger Marble Here was a recent post: "I am looking for a formula for adjusting 'cold inflation' pressures for large...

Remember: A tire is just a tool you use to get a job done

RV Tire Safety with RV tire expert Roger Marble This is in response to a report of tread cracking of some traction design tires placed on...

Carry an air compressor? And finding a certified tire inspector

RV Tire Safety with RV tire expert Roger Marble I saw an RV forum post on whether you need your own air compressor, as well as...

More on safe driving speeds, and the finite life of tires

RV Tire Safety with RV tire expert Roger Marble Some folks insist that they "have" to drive at 70 to 80 mph while pulling 15,000 pounds...

Do RV owners know about tire age?

RV Tire Safety with RV tire expert Roger Marble There are many posts on how to learn the calendar age of tires by reading the DOT...

Should you carry a spare tire?

RV Tire Safety with RV tire expert Roger Marble I have posted about spare tires on my blog and on various RV forums. One thing almost...

Is it OK to run 70+ mph with ST-type tires? It depends …

RV Tire Safety with RV tire expert Roger Marble Is it OK to run 70 or 80 mph or faster with ST-type tires? Yes, if you...

Are “ST”-type tires required on trailers?

RV Tire Safety with RV tire expert Roger Marble Question: "My 2012 Airstream Classic came with Goodyear Marathon ST225/75R15 LR-D tires. I would like to tell you...

How to take good pictures of tire tread for a complaint

RV Tire Safety with RV tire expert Roger Marble I occasionally see posts from folks complaining about some tread or sidewall condition on their RV tires....

Should you replace valve stems when installing TPMS sensors?

RV Tire Safety with RV tire expert Roger Marble Got this question on an RV forum: "I understand from the thread that you should use metal tire...

The science of trailer tire inflation and failures

RV Tire Safety with RV tire expert Roger Marble "WARNING – Super Technical Post" —Roger I have had some folks who seem to want to replace science...

Final results of TPMS comparison tests

RV Tire Safety with RV tire expert Roger Marble Comparison of TireTraker external vs. TST 507 internal TPMS: Summary and my opinion. Since March I have been...

When should you replace your tires? How old is “too old”?

RV Tire Safety with RV tire expert Roger Marble A lot of folks talk about tire age and when they "age out." Here is what a...

Internal vs. external TPMS comparison – Hot ambient temperature

RV Tire Safety with RV tire expert Roger Marble Since March I have been conducting a comparison of a couple different Tire Pressure Monitoring Systems (TPMS)....

Do inner duals fail more often? If so, why?

RV Tire Safety with RV tire expert Roger Marble I recently read this on an RV Forum thread: "Isn't it weird how it always seems to be...

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