Category: Roger Marble

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 no one considers when shopping for a new RV is the potential need for a spare tire. After all, lights in the ceiling seem to be more important to many, as is having three…

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 believe in MAGIC! I’ve read more posts on an RV trailer forum about driving at 70 to 80 or more. Here is my reply. The load formula that resulted in the numbers in the…

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 many original installed tires I have had blow out using the original and same size tires as replacements. I even replaced the LR-D’s with LR-E’s and still only get about 3,000 miles…

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. Frequently, however, either they can’t properly describe the condition or if they have pictures, the image is too small, poorly lit or from too far away to allow proper inspection of the condition for…

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 stems with TPMS [tire pressure monitoring system] caps. The ends of the tire stems on our trailer are metal with the only visible rubber part right where they go through the wheel. I…

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 with what they term “common sense.” In my opinion, this is why some people still think the sun and the rest of the universe rotate around the Earth, or believe the Earth is…

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 conducting a comparison test of two different tire pressure monitoring systems (TPMS). When I started in March the ambient temperatures were down near freezing. I completed my comparison at the end of July…

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 few tire companies have to say about passenger and light truck tire service life: Japan Automobile Tyre Manufacturers Association (JATMA) recommendation: At 5 years have tires inspected by “Qualified tire service person,” and no…

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). One from TST has internal sensors, as seen below right. Please note this shot shows the TPM sensor and the steel band retainer. I was in the process of removing the extra band material…

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 the inner tire that goes bad or blows? Seemed to always be my experience (bad luck) when I was driving semi’s for a living.” While I have never seen a documented study, I…

RV Tire Safety with RV tire expert Roger Marble There seems to be a bit of confusion when it comes to selecting tires to replace the size/type that came as Original Equipment on your RV. What you can do and what you should do are not always the same thing. Here are some statements collected and posted by a knowledgeable…

RV Tire Safety with RV tire expert Roger Marble Originally posted on Airstream forum, but the answer applies to anyone running radial tires. “From my reading, if you see a post where the tire failed with the tread coming off AND the tire carcass still held air pressure, that is likely to be an interply shear failure. It is my…