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Old 08-30-2016, 03:56 PM   #11
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Airdale, You and I agree on many things. One is that the "Original" selection of a tire is the responsibility of the RV company. However IMO if the RV company isn't willing to accept the responsibility for their selection and to stand behind the components they select for much longer than it takes to drive off the RV dealer sales lot, then I see no reason for users who want more reliable tires or refrigerators or brake lights to not be able to change those components.

Technically as long as the replacement tires are rated for the same or greater load and speed capacity than the OE tire then I would challenge the concept that the owner should not change tires simply because they aren't the same as the OE component.

IMO the "Unsuitable for application" is simply a phrase used to get out of having to warranty a tire that has failed due to overload or under-inflation. I would be willing to challenge another tire engineer on what facts would make an application "unsuitable" as long as load and speed ratings of the replacement tire exceeded the OE tire.

As we both know the revised FMVSS regulations 571.139 and the other updated requirements that apply to Passenger & LT type tires require significantly more robust design for tires than the 30 year old 571.109. As such I feel that using tires that can pass 139 as well as provide more load and speed capacity than 109 would be a more reasonable choice.

If or whenever an RV company decides to demonstrate confidence in their selection of tires for the RVs they are selling by offering meaningful warranty policy I would of course then be willing to change my opinion
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Old 08-30-2016, 04:01 PM   #12
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Originally Posted by M109Rrider View Post
3 years since this happened. LT's ever since
That failure appears to be a Tread separation which is the result of poor or degraded tear resistance between the top belt and the undertread compound.
This is clearly not a Run Low Flex "Blowout"
I agree that an LT tire with higher load capacity & speed rating would probably be more reliable than an ST type tire. Especially as with LT you have the option of selecting tires made by "Tier 1, 2 or 3" level tire companies rather than "container babys" from tier 5 company.
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Old 08-30-2016, 04:09 PM   #13
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My 2010 Cedar Creek 34SATS gross weight is approx 14,000 lbs. I bought The Beast 1 year old and it came with ST 'BlowMax' china bomb tires. What's weird is the trailer is factory placarded for 235\16 LT's. After a thousand miles I yanked the china bombs, gave them to a buddy with a lighter weight trailer with a stern warning that I took NO responsibility what-so-ever for their reliability and tossed 4 Cooper LT SRM II's on The Beast. The second season, my buddy had two tire failures with the last one wasting his fender skirt and flooring. He switched over to Cooper LT's and never looked back.
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Old 08-30-2016, 05:56 PM   #14
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My 2010 Cedar Creek 34SATS gross weight is approx 14,000 lbs. I bought The Beast 1 year old and it came with ST 'BlowMax' china bomb tires. What's weird is the trailer is factory placarded for 235\16 LT's. After a thousand miles I yanked the china bombs, gave them to a buddy with a lighter weight trailer with a stern warning that I took NO responsibility what-so-ever for their reliability and tossed 4 Cooper LT SRM II's on The Beast. The second season, my buddy had two tire failures with the last one wasting his fender skirt and flooring. He switched over to Cooper LT's and never looked back.

Well clearly your TT is just another example of the outstanding job FR does in selecting tires for application on their RVs. Too bad you didn't discover the tire situation when new. You could have filed complaint with NHTSA and you could have demanded FR give you the LT their tire placard identified. Have you confirmed if there were other mistakes? such as axles not matching the GAWR on the Certification sticker?

IMO some want to say the RV company is the one responsible for selecting the correct tire but clearly FR doesn't take that job seriously or they would not be having all the recalls and other problems with tire size and placard information. It is as if all they care about is making the sale then "buyer beware"
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Old 08-30-2016, 06:54 PM   #15
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I doubt that would fly Tireman. As mentioned I bought The Beast as a one yr old unit. It was used. To complicate matters, I got it from an Airstream dealer, not even a FR distributor. Prior to this fifth wheel we owned a 30 ft. Jayco aluminum sided non-slide out TT that we hauled 3 kids all up and down the East coast on 15" Goodyear Marathon ST's incident free. The TT grossed out at around 7600 lbs. Had I been aware of all the issues with PowerKing 'Blowmax' tires especially on heavier trailers I would have demanded the correct tire installed prior to signing on the dotted line. I betcha he pulled the LT's off my trailer when they got it to put on one of theirs, and installed those junkers. I guess it's live and learn.
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Old 08-30-2016, 07:16 PM   #16
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Check with your tire dealer first as well. The tire dealers that I deal with here in my area will NOT put LT tires on trailers and trailer rims unless they came with them. I can only assume that they do not want the liability.

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Old 08-30-2016, 07:21 PM   #17
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Ok. Color me stupid. Is there a 15" tire in LT that will handle 2500-3000lbs per? I have kinda looked, but I haven't seen any.


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Old 08-30-2016, 07:49 PM   #18
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Ok. Color me stupid. Is there a 15" tire in LT that will handle 2500-3000lbs per? I have kinda looked, but I haven't seen any.


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I don't think so. I upgraded to 16" wheels to get an LT tire with a rating a bit higher than the 15" ST's they were replacing.

The problem people seem to miss is: the higher ratings that all these ST's have mean absolutely nothing since they keep blowing up. I would bet a lower rated LT could carry more than a higher rated ST and outlast them. I wouldn't recommend it, but I bet it would.

I upgraded to 16" wheels and got 16" LT's with a higher rating than my 15" ST's.

I honestly laugh at all the ST defenders parroting how they are designed for the special forces trailers exert. Many LT tires are suitable for any location (front, rear, trailer). You can bet your ***** the ratings on LT's are legit. I don't trust ST's at all. Pure garbage in my eyes.


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Old 08-31-2016, 12:36 AM   #19
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Have had on average 2 blowouts a year for past 8 years on ST tires on a variety of trailers.

I switched to LT tires this year and this was my first summer without a blowout.

ST tire advocates can keep their ST tires. I'll stick with my LT tires and keep watching for those elusive to find LT tire blew threads on the forum.
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Old 08-31-2016, 02:22 AM   #20
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Check with your tire dealer first as well. The tire dealers that I deal with here in my area will NOT put LT tires on trailers and trailer rims unless they came with them. I can only assume that they do not want the liability.

X'2 you will be hard pressed to find a dealer to install LT tires on a trailer when the sticker reads ST here in Virginia. So I looked for the best ST tire on the market. I switched to Maxxis 8008 "D" rated tires. I have been very happy with the out come and handling since. The only way I could have put on LT tires on would be to take each tire off and take it down to the tire shop and have them install them one by one. When I went to tire dealers the first thing they did was check the sticker on the trailer, mine says ST "C" rated. I was able to move up to "D" rated only without having to buy new rims to except "E" rated pressure. My rims are maxed out at 65 PSI stamped on them. Not all ST tires are bad. I don't here of to many complaints on here about the Maxxis ST 8008. It's a very good tire. I'm not worried about my speed rating of 65 because I don't hardly ever go over that speed anyway. The tires that came from the factory were called Trail Express. Try to find a dealer who can even get those no name tires, Noboby but Lion Head sells them. In fact even in NC where I had to put new tires on before going home from the Mayberry Rally also refused to sell me LT because he said the sticker says ST. and they couldn't put LT tires on because of the sticker.
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