I just looked at what I had and they are Goodyear Marathon's rated at 80psi. They are made in china...are those the china bombs referred to?
My Cruiser weighs in at 9700lbs and I read that marathons are good for under 12,000 lbs. I have towed for probably only 3500 miles, second owner but the tires look in really good shape still???
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2015 Crossroads Cruiser 305RS
2012 Ford F250 6.7 Diesel
<---- My other RV is a Vans Aircraft RV9A
I had a set of Marathons before the set I have now. I didn't have any problems with them. In fact I still have the spare for that set bolted up under my rig. It's never been on the ground. (knock on wood)
I went with a set of Goodyear LT's.
PS
You might want to check on the sidewall to see when your tires were manufactured.
I also have Goodyear Marathons on our Cruiser. When we bought they were the best Goodyear offered. Been on for three years and about 4000 miles and still look like new. Used in the summer and covered in the winter.
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2009 Seville VF32KS
2019 GMC Sierra 3500HD Crew Cab Denali.
6.6 Diesel standard box.
I would recommend maximum as prescribed on tire to get the full benefit of the sturdy sidewalls of those tires. The maximum will be dependent on tire size. Mine are 225-75/15 and max is 80 psi.
Two of my marathons are in excellent shape and I drove them 3500 miles from Alberta to south Florida. One of the other ones on the other axel was wearing unevenly and I made it without blowing out. I replaced it with an endurance to match the other tire on that axel. Now that they match again, they should wear a lot more evenly. Oh, and my trailer is 12,000 lbs wet.
I just took off the factory china bombs and went to discount tire to look at Hartland and Goodyear Endurance anyone that looks at these tires side by side will always go with the GY. comparing my china bombs to the Hartlands they looked a lot a like.
I was quoted 850.00 for 5 GE but talked them down to 581.00 out the door along with a 60.00 rebate offer. so 520.00 -5 tires. I was quotes 468.00 for the Hartlands so it was a no brainer and I could feel the difference with the GE beefed up sidewall.
I ran the china bombs longer that I should have and consider myself lucky. I do apply rubber conditioner to my tires and all seals when out camping so that may have helped not sure. Anyway I was not going any where this year without some good tires. (one of my favorite camp sites is only 50 miles from my house)
When you pull your trailer after your GE upgrade you'll be completely blown away by the handling improvement, because of that enforced stiffer sidewall. It is remarkably a night and day comparable improvement that you'll never regret..
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