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Old 09-09-2012, 08:39 PM   #21
CWtheMan
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Originally Posted by smiller View Post
I've seen other reports of sidewall bubbles in Towmax tires. No option other than to replace, but I'd replace all of them. Not to beat it to death but...it's a lot less expensive than a blowout. Maxxis M8008 10-ply is your best option in an ST tire, in fact about the only good option.
He has 7000# axles. Maxxis does not make a ST tire with enough load capacity for the 7000# axles.

CW
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Old 09-09-2012, 09:02 PM   #22
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He has 7000# axles.
Didn't realize that. But what is on there now? Does Towmax make tires rated that high?
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Old 09-09-2012, 09:32 PM   #23
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Didn't realize that. But what is on there now? Does Towmax make tires rated that high?
Yes. The TowMax STR ST235/80R16E tires are rated at 3520# at 80 psi.

Here is a reference.

http://www.towmaxtires.com/tires/Lan...x-product-line

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Old 09-10-2012, 04:04 AM   #24
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Originally Posted by CWtheMan View Post
He has 7000# axles. Maxxis does not make a ST tire with enough load capacity for the 7000# axles.

CW
http://www.maxxis.com/Industrial/Tra...ST-Radial.aspx

My Alpine has the 235R80/16 Tow Max and the name plate says I have a GVAW of 6840 and that is the rating of the 235R80/16 Maxxis. I pln to put Maxxis on my trailer before my next big trip... that and a good tire pressure monitoring system.
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Old 09-10-2012, 07:55 AM   #25
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I dare say you'll be much better off with the Maxxis regardless of the slight difference in weight rating. Better still would be to swap rims and go to a tire that can provide some headroom if you run near your max weight... scary to run any tire at its max. rating constantly.
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Old 09-10-2012, 10:39 AM   #26
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I have the same size Tomax tires on my 2012 MKS 326. The first month I had the new trailer I put a screw through the outer edge of the tread pattern face. It was plugged and I put about 5000 miles on the tire with a wary eye on it always. Sure enough I had to replace it last week because it developed a bulge on the inside side wall near the tread pattern where it was plugged. It was replaced with a Carelisle tire because they did not carry Tomax. I estimate I have about 3/4 of my tread left and will I guess I can get about 15,000 on them before replacement.
Since being on this site I have slowed down and keep the trailer at 65 mph. I had not been informed about the tire limitations dealing with Speed. Up until this point I have always driven the speed limit 70 mph or even 75 if they freeway allowed. I have considered myself lucky never having a blow out since I started trailering in 1989. I have no issues with Tomax and have had all brands on my trailers
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Old 09-10-2012, 03:43 PM   #27
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The Micheline XP Rib is a 3 position tire, Steer, drive, trailer and will last a long time on a trailer if it meets the weight requirement of your trailer.

My 325SRX has 5000lb axles and 3500lbs per tire 235/80/16 Towmaxs. Lots of extra cushion on tire max versus axle max (which is using all of it).

I plan to install the XP Rib when the time comes.
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Old 09-10-2012, 03:56 PM   #28
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My 325SRX has 5000lb axles and 3500lbs per tire 235/80/16 Towmaxs. Lots of extra cushion on tire max versus axle max
Yes, I also have a 325SRX and it's nice to have some-designed in headroom in tire ratings for a change. Someone as Keystone must have made a mistake...
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Old 09-10-2012, 06:31 PM   #29
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Originally Posted by DocData757 View Post
http://www.maxxis.com/Industrial/Tra...ST-Radial.aspx

My Alpine has the 235R80/16 Tow Max and the name plate says I have a GVAW of 6840 and that is the rating of the 235R80/16 Maxxis. I pln to put Maxxis on my trailer before my next big trip... that and a good tire pressure monitoring system.
Sometimes logic is the only eye opener.

Nowhere in the auto industry will you find a vehicle fitted from the manufacturer with tires without some reserve load capacity. The DOT regulations for automotive tire fitment insure they have reserve load capacities. Tires lose pressure. That among other factors is why the correct tire pressure is a recommended pressure.

The bobbing & weaving RV trailer cannot be expected to operate on tires without adequate load capacity reserves. Trailer tires degrade from 1-2% per year. Tire damage is cumulative, sometimes it adds up in a hurry.

Trailer tires operating at or near their capacity will not last very long.

Increase your odds, find some tires that will provide some load capacity reserves above the vehicle,s GAWR

CW
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Old 09-11-2012, 10:15 PM   #30
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Smile

I have the Tomax tires....
ST 235/80 R16 @ 80 lbs = 3420lbs...3420x4 = 13,680 lbs
My trailer GVWR is 11,785 lbs
My trailer GAWR is 5,200 lbs each axle
Total GAWR (2 x 5200) is 10,400 lbs total
Scale weight of trailer (loaded) is 9,860 lbs
(this is offset by the fact that the king pin is putting
1,880 lbs on the truck)
Scale weight of trailer axles is 7,985 lbs
Pin weight is 1,880 lbs

So....my pin weight takes off 1,880 lbs from my trailer weight. This means my tires have a super buffer, are doing fine, will support 13680 lbs and I only have 7,985 lbs on them. My axles will support 10,400 lbs.

I have had no problems in 3 years with Tomax tires.
I think those who have had problems probably have 15 inch rims and are under inflated, or their tires are over five years old, or they drive over 65 mph?
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Old 09-12-2012, 10:34 AM   #31
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towmax tire bubble

Your right about one thing, yes i drive over 65 mph, i'm a proffessional driver and i only get so many days off, so i'm not wasting anytime , all though im not doing 80 either and being stupid!!! i 'm not driving 10 miles under the speed limit JUST because someone on here might think thats better, these tires i'm pretty sure were designed to go faster than 60-65 mph!!!! and no my tires were 16 in . on 7000lb axles.The end result with my bubble was they paid 80 percent of new tire, so i was pretty happy since it didn't blow and ruin anything.
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Old 09-12-2012, 05:54 PM   #32
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Mine Held up very well from Michigan to Arizona then Arizona to Florida. Somewhere between Florida and Michigan the Axles went awry and the tires wore on the inside on one and outside on the other. Luckily no blowouts, so I can say they held up pretty well, considering. Now to get the axles replaced...
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Old 09-12-2012, 05:59 PM   #33
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Somewhere between Florida and Michigan the Axles went awry and the tires wore on the inside on one and outside on the other.
My Towmax tires wore unevenly too (I've seen several reports of this) and I began to suspect my axles, but since I replaced the Towmax with another brand I've been looking for the pattern to repeat and so far after a couple thousand miles tire wear seems completely normal. This is not enough miles to be sure so I will continue to monitor, but for me the jury is out as to what exactly was causing the problem, axles or tires.
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Old 09-12-2012, 06:07 PM   #34
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Tires looked good in florida and most of the way North. Rackin' my brain to remember if I hit something... can't recall, tho. Dealer response was to change the axles out and try to get Cornerstone to pay.
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Old 09-20-2012, 08:03 AM   #35
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Good news, just talked to Cornerstone adjuster. They will replace axles and pay labor. Now to lite a fire under the dealer to order axles.

I still have to shell out for new tires.
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Old 10-12-2012, 04:54 PM   #36
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Got Cougar back today.. New axles, springs and brake assemblies for the cost of my deductible and axle freight charges. Went right from dealer to tire store and put 4 Cooper LT235/85R16 Discoverer H/T tires on with metal stems. Just in time,, we're ready to head southwest !!!!
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