posted 05-22-2012 08:56 PM                  

The stock Goodyear EMT tire our cars were delivered with have a tread wear rating of 180 if memory serves.

Looking at the current Goodyear RS-A EMT run flat tire, they are advertised as having a tread wear rating of 260.

Based on these numbers, the Michelin tire would have a longer life expectancy than the stock Goodyear tires but not as good as the current ones.

Here is a quote from Wikipedia about tread wear. I hope it is of some help to those looking for tires.
http://en.wikipedia.org/wiki/Treadwear_rating#Treadwear_Grade_Number

posted 05-25-2012 07:08 PM                  

quote:

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Originally posted by catfish:
run flats forever for me.if you go to non runflats you will lose the handling qualities.there is no way a non runflat will handle as good as one with runflats.

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posted 05-25-2012 08:12 PM                  

If I was putting my wife in a car and sending her across country in a vehicle without a spare tire, I would most definitely see the value in the run flat tires. Now as a performance junkie, I would have to say that I am not the most impressed with the way some of these tires handle or ride.

Lets start with an explanation of how the run flat tire actually works, and what is different between these and a conventional tire. The major difference is in the construction of the sidewall of the tire. In the illustration below you will see the difference in the thickness of the sidewall and the way it is constructed. The top section is of a standard tire with normal sidewall construction. The second section is of a run flat tire, you will notice that the sidewall is almost twice as dense.

So what does this mean? Well twice as much rubber is twice as hard to flex. So the driver ends up feeling every bump in the road. I personally like to feel connected to the road, but even I have my limits. I talk to Chev Corvette owners regularly, and I can't remember a single one that was happy to pay the premium for run flats, and didn't complain about the wear factor and ride quality....or lack there of.

When the tire loses pressure, the weight of the vehicle actually rests and runs on the sidewall. Think about it! The entire weight of the car is running on the sidewalls! The gotta be stiff to support that!

Where does this leave me on run flat tires? If you are willing to make the swap and take the risk of needing to call a tow truck or flat bed in the event of a flat, you will open up a lot more options at a lower price point, that are superior performing tires, and better riding tires! This is a decision you have to commit to pretty whole heartedly, but if you love to drive, your car will thank you!

found this at tirerack.com by Gus Liszewski

posted 05-25-2012 10:13 PM                  

quote:

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Originally posted by catfish:
do you even kwow the diff. in the makeup of the two types of tires.

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posted 05-25-2012 10:19 PM                  

quote:

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Originally posted by beachcat:
I talk to Chev Corvette owners regularly, and I can't remember a single one that was happy to pay the premium for run flats ...

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Roger, runflats have been OEM and standard on every Corvette since the C5 series came out in 1997. There has been no "premium paid", as in an "option" for this type tire. Furthermore, Goodyear was in development with Corvette engineers to maximize performance and handling with the tire installed, while also taking into account ride comfort.

Prowler may be no different - as these were not off the shelf tires at the time the car was introduced - they were HUGE, and unique.

posted 05-25-2012 11:29 PM                  

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