10 ply or 12 ply

[STORM6523]

We purchased a used 2018 Montana HC 305RL, new tires was put on before we bought it, only problem is I noticed it came with 12 ply tires from factory, and the previous owner put on 10 ply times….should I run these new 10ply tires or replace them….

 

[Carl n Susan]

What are these "new" 10 ply (aka E rated tires? The HC 305RL came with 6K axles. 12 ply (aka F rated) are the standard tire for that RV. They meet the RVIA required minimum reserve capacity requirement for 6K axles.

 

[Daryles]

We have a 2019, 3130re, it came with G rated Sailun tires. G rated tires are pressurized to 110psi. The rims MUST be rated for 110 psi to use these. I would recommend upgrading to G rated Sailun (Walmart, etc.) tires. They have a very good reputation with this group. If you choose to do this, verify your rims can handle it first. Look for a stamp on the inboard side of the rims.
Tires should be changed at least every 5 years to help prevent blow outs. Check the date code on the tires.

 

[twindman]

I second the 5 year limit. I 'THOUGHT' my tires were only a few years old but couldn't find my receipt. That summer I had a bad blowout on the driver side that blew out a part of the fender, completely bent the vertical edge piece of the slide out to a horizontal direction, and other damage. Then a few days later and only 15 miles from home a tire blew on the other side without much damage. After inspection I discovered one tire was 6.5 years old (which means it was over a year old when purchased) and the others 5.5 to 6 years. Total cost $9500, but deductible was only $500 - whew!

 

[Mikelff]

I just replaced my Sailuns with Carlisle. The Sailuns were 5 years old and definitely needed to be replaced. From everything I’ve read, the Carlisle tires are comparable to Sailuns. All of their trailer tires are now made in USA, in Tennessee, although some are still out there that were made in China, but cannot find any negative issues with the tires made in china. I would go with the G rated tires (14 ply) .

 

[Jerkyguy]

We purchased a used 2018 Montana HC 305RL, new tires was put on before we bought it, only problem is I noticed it came with 12 ply tires from factory, and the previous owner put on 10 ply times….should I run these new 10ply tires or replace them….

Like the others a saying 14 ply Sailun are the best!

 

[jsb5717]

Our 305RL also came with 12 ply, F rated tires. They were Rainiers so I wanted to get rid of them ASAP. Moved to Sailun G tires. I just put on our 2nd set since the first ones were 5 years old.

No clue as to why the previous owner would put on E tires. They are under rated for that trailer and I would definitely replace them. Go with G tires of any reliable brand like Sailun, Carlisle, Cooper. If in doubt, check in here before buying an unfamiliar brand. There are far more questionable or bad ones than there are good ones.