Category: Roger Marble

RV Tire Safety with RV tire expert Roger Marble One of the forums I follow is on Airstream trailers. There was a post from an owner who was having problems getting the actual loads on the trailer, hitch and tow vehicle. There were a number of posts on what he needed to do; however, I saw no mention of tire... Read More

RV Tire Safety with RV tire expert Roger Marble Question: Recently read a forum post that said: “We are moving across the United States for our FIRST trip in our ’06 Mountain Aire. Don’t think that’s a great idea for a first trip, but that’s what’s gonna happen. LOL. I do not have access to a four corner scale. I... Read More

RV Tire Safety with RV tire expert Roger Marble Let’s see if I can bring some Science and Engineering facts and history to this issue of speed limits on ST tires. In ’60s and ’70s, when ST-type tires were “invented” and started to be applied to travel trailers, the national speed limit was 55 mph and tires were bias. Trailers... Read More

RV Tire Safety with RV tire expert Roger Marble I have been looking at the “Tire Placard” aka Vehicle Certification Label for a number of 5th wheel trailers. I learned a few things. A couple of manufacturers have upgraded the tires on the newer units. Some went from ST235/85R16 LR-E to ST235/85R16 LR-F. The inflation went from 80 to 110... Read More

RV Tire Safety with RV tire expert Roger Marble This info is from an inspection I did awhile ago. Some may find it informative. A friend wrote a post on an RV Forum of his experiences and the results of my “Cut Tire Inspection.” He posted:  This summer I had a tire failure, three... Read More

RV Tire Safety with RV tire expert Roger Marble Got this PM from someone who reads RV forums: Good evening. I’m looking for some professional advice. I have a 2500HD pulling a fifth wheel, my steer axle is 4,000 lbs., drive axle is 5,380 lbs., and our trailer is 7,700 lbs. Tires on the TV are rated for 3,100 lbs.... Read More

RV Tire Safety with RV tire expert Roger Marble I recently read yet another forum post on the topic of “How much inflation should I run?” This post followed the standard format of: A. “I just bought an XXX RV. How much air do I need in my tires?” and B. Numerous replies ranging from “I use xx psi,” to... Read More

RV Tire Safety with RV tire expert Roger Marble I took the wife’s Miata down for an oil change and tire rotation and was contacted by the store that they had discovered a “bubble” in the sidewall and wanted to know what I wanted to do. After a quick look at the location of... Read More

RV Tire Safety with RV tire expert Roger Marble I saw a post from an RV owner who discovered something on the upper sidewall of a tire when doing a visual inspection. He was calling this a “crack” and was looking for input from readers of that RV forum. A number of readers chimed in with opinions ranging from “Time... Read More

RV Tire Safety with RV tire expert Roger Marble Following a few different RV forums, I see a number of people that clearly do not follow this blog and have questions on what inflation to run. While many of these folks are discovering that the new Goodyear Endurance line seems to come with higher Load Range or only in larger... Read More

RV Tire Safety with RV tire expert Roger Marble Continuing my series on Tire Pressure Monitoring Systems. Last time I covered internal versus external TPMS temperature reports when it was moderate to just cool outside. This report is different. On my way south to Georgia from Ohio it got downright cold. I stopped for the night in Kentucky and in... Read More