I make it a point to know a little something about a tire before I write about it. The 17.5" Michelin tire mentioned in this thread was an oddity. Michelin supported it as OEM for RV trailers. They had a rep at the DRV factory.
I actually had a sit-down with a Michelin rep at Michelin of North America - 10 miles from my home - about speed limit regulations for the tire mentioned. They cold not justify using commercial tire rules for manipulating the tires speed limit, because being fitted to RV trailers does not allow deviation from FMVSS standards.
Other than the low speed limit, the tire has a great footprint for numerous RV trailer applications. Its OD is 30.7" with a OW of 8.7" and it has a wheel/rim width range of 6.00 - 6.75". So it can surely fit into any wheelwell where 16" tires with load capacities over 4000# are found. However it would surely be over kill when fitted to any RV travel trailer and would never be recommended for such fitment by a trailer manufacturer. However, how often do they ever recommend replacement tires different from their OE tire fitments?
Reference: Michelin Tire Data Book page #56.
https://www.michelintruck.com/assets...k_Sept2011.pdf
Should this tire be discussed in this thread? The door was opened. I didn't open it, I just provided some info about the tire and it's usage on RV trailers.
One of the things this particular tire fitment did is point out that top end RV trailer manufacturers are willing to go to extremes to fit top end tires to their units. This venture failed and another top name brand tire manufacturer got the nod for OEM.
Big heavy Keystone trailers are now using a popular China ST tire manufacturer for those over 4000# load capacity tires. You know the one, starts with an "S".
Oh yes, the OP. Feedback should be after the fact. Just because I'm using them doesn't mean I'm going to endorse them before they've completed their life cycle. Of course there are those that will do it the day they make the decision to use them.
Take the GY Marathon. Got all sorts of bad feedback. I personally had five catastrophic failures with them. In my case I didn't see it as entirely a GR manufacturing problem. I saw it as just as much a manufacturer's mismanagement of resources problem. And, it got me into RV trailer tire researching. Our trailer is a 2003 Everest 363K. Its Vehicle certified axles (GAWRs) are 6000#. Their OE tires were ST235/80R16D with a load capacity of 3000# at 65 PSI. None of them, including the spare lasted a year. We were very active full timers traveling with max cargo capacity. All tires degrade, STs a lot faster when there is no reserves.
Here is a reference with the specs for the 363K. It confirms the tire size. They are none of the LRDs on the market today.
https://www.jerrystrailers.com/fckim...03_Everest.pdf