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Old 04-10-2006, 08:40 AM   #71
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Quote:
Originally Posted by jcanavera
So far I haven't received any response from Discount Tire relating for further information regarding the statement that the ST tire loses 1/3 of its strength after 3 years. Obviously we would all like to understand how the term "strength" translates to issues like load limits, or other items relative to towing.

I did send the same question to Goodyear and asked an additional question again relating to the mileage design limits of the Marathon ST tires. I'll let you all know what kind of answers I get back.

Regards,

Jack
Well Goodyear responded and unfortunately they gave my question to a PR person who gave me this response.


"From: goodyear_cr@goodyear.com on 04/07/2006 05:02 PM
Sent by: Goodyear Tire & Rubber Company Consumer Relations 728 1144 East Market Street Akron, OH 44316 Voice #: 800.321.2136 Fax #:
330.796.6829

Tires are designed and built to provide many thousands of miles of excellent service but must be maintained properly. As explained below, the service life of a tire is affected by many factors that are independent of the chronological age of the tire.
Service Life is Not Determined by Chronological Age Tires are composed of various materials, including rubber, having performance properties essential to the proper functioning of the tire. These component properties evolve over a combination of time, service and storage conditions. For each individual tire, this change is affected by many elements such as temperature, storage conditions, and conditions of use (e.g., load, speed, inflation pressure, impacts and road hazard
injury) to which a tire is subjected throughout its life. Since service and storage conditions vary widely, accurately predicting the serviceable life of any specific tire based on simple calendar age is not possible. The Rubbers Manufacturer Association (RMA) is not aware of scientific or technical data that establishes or identifies a specific minimum or maximum service life for tires. However, in some cases a tire or vehicle manufacturer may make a specific tire replacement recommendation regarding its products. If so, the consumer should consult the manufacturer with any questions with regard to following the recommendation. Further, any such recommendation should not be considered a minimum serviceable life for the tire. (Bolded by jcanavera)
The Consumer Plays A Primary Role in Tire Maintenance The tire industry has long emphasized the consumers’ role in the regular care and maintenance of their tires. (Tire care and service manuals are available from RMA on its website,
www.rma.org.) Tires should be removed from service for several reasons, including tread worn down to minimum depth, signs of damage (cuts, cracks, bulges, vibration, etc.) or signs of abuse (underinflation, overloading, etc). That is why it is recommended to have tires, including spares, inspected regularly. A monthly maintenance inspection, for which the consumer must be primarily responsible, should focus on proper inflation pressure, tread wear and tire damage. This monthly inspection should be supplemented by recurring rotation, balancing and alignment services. This inspection should occur whether or not the vehicle is equipped with a tire pressure monitoring system. Additionally, the condition of a tire should be assessed regularly to determine if there are any tactile or visual signs of damage that make replacement necessary.
Storage, Rotation, and Other Conditions That May Affect Tire Service Life Tires should always be stored in a dry, cool, well- ventilated place. Avoid storing tires in areas that are exposed to wetness, petroleum or petroleum-based products, extreme temperatures, direct sunlight, and/or other sources of ozone, such as electric motors.
Storage areas should also be clean and free of grease, gasoline or any corrosive chemicals which can deteriorate the rubber.
If a vehicle is fitted with a matching full-size spare tire (same size and type as other in service
tires) the consumer should follow the vehicle manufacturer’s recommendation for rotating the spare tire. When any spare tire is placed into service, its inflation pressure must be checked immediately. Consumers are strongly encouraged to be aware not only of their tires’ visual condition but also of any change in dynamic performance such as increased air loss, noise or vibration. Such a change in performance could be an indication of an internal condition that might dictate removing the tires from service immediately to prevent a tire failure.
In these cases, RMA recommends that consumers consult a tire service professional.
Adopted March 2006
Best Regards,
Mary
Consumer Relations"


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Old 04-10-2006, 07:37 PM   #72
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Hey everone ,

Maybe those high speed coopers can stay together much better than the current tires out there (marathons) .Hard to say ,still a matter of the tires being capable of handling the load of the trailer , not overheating which kills them.Id say if it is stronger somehow or more rugged in design ? Could work. and yes the new style metric sized tires are not as tall as the 700-15 as has been said . Would not work on my 60 trdwnd single axle and I have brand new leaf springs not rebuilt , The 700-15 hercules tires work great and look good .No problems yet have traveled 3000 miles so far with them .

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Old 06-30-2006, 08:34 AM   #73
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If you ever have a tire on your trailer come apart you will forever be leary of old tires! I have towed from one end to the other of this good old USA. Towed Vintage Airstreams, antique autos and motorcycles. Been collecting Airstreams since way before it was popular. Have owned as many as 15 at one time including three 1961 Bambis at one time. I always carry new tires to put on the trailers when I picked them up. It is very sad to have the area behined the tires torn apart by an aged tire! My first vintage rally I had a tire sling off its tread and tear a gaping hole in my now beloved 1964 Globetrotter. Tried the ST tires and didn't really find that they held up as well as the Light Truck type. Not into arguments but just had to put in my two cents worth. From old coot in Texas and I always towed at speeds that kept me from being a nusiance to others.
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Old 06-30-2006, 09:21 AM   #74
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In about 3 years roughly one third of the tire's strength is gone

Quote:
Originally Posted by jcanavera
This was interesting. While I did know the speed issue and have preached that topic myself several times on the forum, the point made

"In about 3 years roughly one third of the tire's strength is gone."

is quite interesting. I wonder how you equate strength with ability of the tire to carry its rated load? If we go by that guideline we would all be throwing tires away after two towing seasons.

Maybe I need to send a little note to that vendor and ask for some clarification of that statement.....ok I just sent them a note. Let's see what kind of response I get.

Jack
I think tire manufacturers have not made a serious product for us!
When you consider the standard automobile tire is speed rated for 110MPH and specialty tires are much higher rated.
In the 18 wheeler catagory, their tires are driven faster than 65 mph and seem to survive.
I am not advocating towing at 110, but I do think we should have better tires available to us.
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Old 06-30-2006, 11:27 AM   #75
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Quote:
Originally Posted by triumphleroy
...Been collecting Airstreams since way before it was popular. ...
What is the date that collecting Airstreams was NOT popular? Just curious.
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Old 06-30-2006, 11:38 AM   #76
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Quote:
Originally Posted by Airstream25
I think tire manufacturers have not made a serious product for us!~snip~

In the 18 wheeler catagory, their tires are driven faster than 65 mph and seem to survive. ~snip~
Been on an Interstate lately I don't doubt that 18 wheeler tires are speed rated, but I question for what speeds. I typically see tire chunks spread from one end the state to the other. IIRC in NC alone they spend almost $2 million a year on cleaning up the tire debris from the highways. Last night on the way in from Charleston I had to dodge whole sections of tires on at least 7 different occasions these are just ones that were in my lane, and doesn't include the other lanes or shoulders.

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Old 06-30-2006, 02:20 PM   #77
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When did Cordovan Tires go out of buisness?

The weather checked but otherwise pristine set of 7x15 LT 4-ply I removed (after a 1400 mile drive home) had a date year code of "9" which the dealer said was 1999 but I think 1989 is a better bet. When delivered the Cordovans had 32PSI and barely would roll, I boosted that to 42PSI after 30 miles and was impressed with 13+ (14 one tank) mpg on bias ply tires!!

Sams Club was happy to mount and balance ($36) my carried-in tires on my carried-in rims but I had hammered the service manager more than once about getting Marathon "C" tires from them which they couldn't provide.
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Old 06-30-2006, 06:58 PM   #78
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tire chunks spread from one end the state to the other

Quote:
Originally Posted by wahoonc
Been on an Interstate lately I don't doubt that 18 wheeler tires are speed rated, but I question for what speeds. I typically see tire chunks spread from one end the state to the other. IIRC in NC alone they spend almost $2 million a year on cleaning up the tire debris from the highways. Last night on the way in from Charleston I had to dodge whole sections of tires on at least 7 different occasions these are just ones that were in my lane, and doesn't include the other lanes or shoulders.

Aaron
I have seen those tire chunks and I always just thought they were retreads coming off.
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Old 06-30-2006, 08:29 PM   #79
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Quote:
Originally Posted by Airstream25
I have seen those tire chunks and I always just thought they were retreads coming off.
They are, but why are they failing? Some are not retreads, I have seen several rigs either in the ditch or on the sides of the road with blown steer tires.(under current DOT rules it is illegal to run retreads on the steer axles) I am sure a percentage may have been caused by hitting something in the road. But I have a hard time believing that those tires on those big rigs are realistically designed for 80,000#'s at 80mph.

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Old 06-30-2006, 09:17 PM   #80
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Quote:
Originally Posted by Wabbiteer
When did Cordovan Tires go out of buisness? ..
They haven't...From their website:

Home About Us Industry Links Contact Us.awmAnchor {position:relative} TBC Corporation - Private Brands Division Friday, June 30, 2006
Cordovan® Tires

Cordovan® tires are distributed by TBC's Private Brands Division. TBC's Private Brands Division is the largest marketer of private brand tires in North America. In recent private brand tire surveys, Independent Tire Dealers rated TBC Private Brands Division products number one in six of the categories surveyed including Product Availability, Line Coverage, Delivery, Product Innovation and Best Overall Brand.

Cordovan® brand tires are manufactured to exacting manufacturing standards. They are second to none in the industry, including the "majors". With Cordovan® tires, today's Independent Tire Dealers have the opportunity to offer superior value vs. the comparable brand name competition - and to receive margins the brand names just can't match.
TBC Private Brands Division. • P.O. Box 18342 Memphis TN 38181-0342 • 1-800-238-6469 • © 2004-2006 TBC Corporation, Inc.
Home | About Us | Cordovan | Multimile | Sigma | Vanderbilt
TBC Corporation | Privacy Policyvar MenuLinkedBy='AllWebMenus [2]',
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Old 07-01-2006, 05:18 PM   #81
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Slow Down

Take a look at this site:

http://www.tiredefects.com/private_b...es/Default.htm

I went here trying to find out who makes what for whom.
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Old 07-01-2006, 06:32 PM   #82
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Google can be evil sometimes - I swear I searched w/ low or no results.... Must've been a spelling arror. Thanks & sorry...
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Old 07-01-2006, 07:53 PM   #83
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Slow Down...

Wabbiteer
Thats ok. I just happened to remember lists of tires and who they were made by when I was researching for the thread,
http://www.airforums.com/forum...res-16506.html
The Cordivans are made by Cooper. I would have gone with the Cooper Custom Trailer Plus if it were not for their marketing structure. Should you whack something on the road and ruin a tire, it would take three or more days to receive a replacment.
Every time I revisit this information I catch something I missed, such as Hood and Kirkland are made by Michelin.
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