[HBarlow]

Brad,

It's none of my business, but I would replace the Maxxis which I consider one of the ChiComm or Korean "willpop" brands, yesterday before I pull the trailer anywhere.

"Certified Master Techs" rarely own and pull a travel trailer. They know a lot about repairing or replacing an RV refrigerator but ....... From your description, the "expert" was judging the tires based on appearance, which is not a useful method for evaluating trailer tires. Trailer tires age and weaken from non-use, not from towing mileage. A five year old RV tire that has only been pulled from factory to dealer, from dealer to buyer's lake front property, may even have full depth original tread remaining, but it is almost a certainty that that tire will throw its tread, blow out, and tear the side panel off the trailer when you pull it on a 100 mile trip on hot summer pavement.

The only way to evaluate a trailer tire is to crawl under the trailer and look at the DOT code molded in to the sidewall of each tire. The DOT code is a four digit number followed by the letters "DOT." The number indicates the week and year the tire was manufactured. In your case the tire may have a DOT code of 2604 which would indicate the tire was molded in the twenty-sixth week of 2004.

Your trailer, your money, your decision.