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Old 02-23-2007, 05:27 AM   #1
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I have a Saturn Vue with Bridgestone tires;
I have only towed this dinghy for about 1000 miles and am getting thumping when I drive the Saturn.
The local tire dealer says the tires are cupping. He says it's due to towing and nothing can be done except stop towing. (or buy lots of tires)
Any thoughts on:
what's causing the cupping?
which tire brands are best for dinghy?
thanks
Gordon
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Old 02-23-2007, 05:27 AM   #2
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I have a Saturn Vue with Bridgestone tires;
I have only towed this dinghy for about 1000 miles and am getting thumping when I drive the Saturn.
The local tire dealer says the tires are cupping. He says it's due to towing and nothing can be done except stop towing. (or buy lots of tires)
Any thoughts on:
what's causing the cupping?
which tire brands are best for dinghy?
thanks
Gordon
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Old 02-23-2007, 06:13 AM   #3
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I have had two cars where the rear tires cupped and one was never towed. In both cases the cupping was eliminated by getting a four wheel alignment.
I have been told that improper inflation can also cause it.

FWIW - I have a friend that flat towed a Saturn (don't know the model)for over 40,000 miles and had no cupping.
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Old 02-23-2007, 11:20 AM   #4
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Gordon,
Clay has the right idea. I have towed all kinds of cars since 1978. As soon as I notice a tire problem I have been able to correct/minimize it by fixing a component or two on the toad. It kept the problem from getting worse, but once a tire problem starts, it is very difficult to get rid of it on that tire.

There is a bit more to it. Cupping can be caused by an unbalanced tire condition, faulty alignment, wheel bearings, loose parts, fatigued springs or weak shock absorbers. Get rid of the dealer who says nothing can be done. Take the toad to a specialty shop with chassis, strut and shock skills. Let them see the tires and take a look at your toad's chassis/suspension.
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Old 02-23-2007, 01:41 PM   #5
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Gordonandpatti, welcome to irv2.

We have towed our 2006 Saturn Vue (also with Bridgestone tires) approximately 12,000 miles and have driven another 12,000 miles. So far (knock on wood), no tire problems. I have only rotated the tires once. I am overdue to have it done again and plan to do so as soon as we stop in one place long enough to get an appointment.

Make sure your tow bar is as level as possible. See the article in the "Towing Issues & Toads" Forum titled Tow Bar Angle and Height Difference. If the motorhome is significantly higher than the toad there is a chance the up and down motion of the back of the motorhome could be slightly lifting the toad causing the cupping. I am using a 4" drop receiver with my Allegro Bay and Vue, which results in the tow bay being almost perfectly level. Whether or not a drop receiver is required and how much drop is needed will, of course, will vary with the motorhome and toad.

You don't say what year your Vue is or how many miles it has on it, but as others have said there can also be issues with the car itself that can cause the tires to cup.
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Old 02-23-2007, 01:49 PM   #6
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Best thing to do is to go to a good independent suspension/alignment shop and get a 4 wheel alignment done. Next thing you need to do is to rotate the tires on a 5000 mile (total towed and driven) schedule. Take the rear tires and cross them going to the front axle and take the front tires straigh to the rear. Ie Left rear (LR) to right front(RF), RR to LF, LF to LR and RF to RR.

had several front drive cars that this was the only way to reduce the tire cupping. It seems to be worst with certain tire rib patterns.

Ken
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Old 02-24-2007, 07:21 AM   #7
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All good advice above. Your tire dealer is full of, ah, baloney and you should find someplace else to take your business.
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Old 02-27-2007, 09:54 PM   #8
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Had some cupping on my toad (2004 Suzuki) on a trip around the U.S. Took it to a Suzuki dealed in Maine and they aligned the front end and never had another problem.

Have your alignment checked.
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