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Old 06-26-2022, 06:17 AM   #1
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run flat tires

has anyone considered or have run flat tires on their class c MH?? seems to make sense, would save the potential damage to MH caused by a blowout. our coach currently has hankook tire (225/75R16). 10 ply tires. wondering if run flats would ride harder since it is a tire within a tire. still worth it to avoid physical damage to chassis and body MH.
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Old 06-26-2022, 08:44 AM   #2
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I wouldn't say the tire is less likely to cause damage to the RV in the event of a blowout . A tread section could still do significant damage flopping around .

The inner tire is more about maintaining some vehicle control and getting safely off the roadway .

I haven't looked into the tires at all .
Are special rims required ?
Or do the stock rims have to be modified to air up the inner tire ?
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Old 06-26-2022, 10:11 AM   #3
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just googled run flat tires, they CANNOT be mounted on conventional rimS. we have run flat tires on my wife's Bmw z4. had one flat but tire did not shred or come apart. that is why I was wondering if I could put them on our class c. looks like we would also have to change rims.
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Old 06-29-2022, 11:35 PM   #4
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Not only are special rims required but not all places that sell tires can sell run flats. Even those that can have trouble getting them.
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Old 06-30-2022, 07:24 AM   #5
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I don't believe run-flat tires are available for a motorhome sized tire. Maybe there are available inserts so the tire does not fully collapse when flat.

Supporting the weight of a motorhome on a run-flat compared to a typical car seems impossible without a serious sacrifice to ride-comfort and also handling. The ultra-thick and stiff sidewalls wouldn't give under normal circumstances when driving over road imperfections. The tires would feel like concrete.

I owned a few C5 Corvettes (1997-2004) in my time which came standard with run-flats tires. When the tires needed changing, I went with non-run-flats which changed the ride immensely for the better. I figure most leaks are slow leaks and that vehicle had a very nice integrated TPMS system.

I feel adding TPMS would be the way to go compared to run-flat tires.
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Old 07-05-2022, 04:37 PM   #6
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Originally Posted by MichaelBarb View Post
Not only are special rims required but not all places that sell tires can sell run flats. Even those that can have trouble getting them.

i think when a run flat is toast you cannot replace just the one tire. You have to replace all 4. Now thats been about 10 years ago since I heard that so maybe its changed
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Old 07-05-2022, 08:28 PM   #7
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i think when a run flat is toast you cannot replace just the one tire. You have to replace all 4. Now thats been about 10 years ago since I heard that so maybe its changed
I believe that applies to many AWD performance cars.
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Old 07-06-2022, 11:40 AM   #8
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Like with any tire you are supposed to replace them in pairs. The key phrase is "supposed to". I have replaced the front pair and left the rears alone.

One time after about 5K miles on new set of tires one got destroyed by a road hazard. They just replaced the one and I had not problems after that. As with any tire is depends on the condition of the other in the pair.

Digging around the web I found you can get run flat truck tires. They are used on armored and military vehicles. No idea on cost but I will bet they are very, very expensive. There are even retrofit systems that use regular tires. https://runflatinternational.com/
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Old 07-07-2022, 08:17 AM   #9
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If everyone is supposed to replace their rear dual tires in pairs, that would support the mentality of "NEVER ROTATE" your motorhome tires.

I never rotate our RV tires due to this reasoning. The thread of the two tires wear together as a pair which in my case is fairly even anyway.
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