Yep, title states it all. Just something I was wondering about when I realized that I haven't moved my car in a month.
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Feb. 15, 2011 6:29 p.m. mtn SuperDork
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Feb. 15, 2011 6:32 p.m. red5_02 Reader
We've had cars on our lot that have sat for 2-3 months without problems. I wouldn't sweat it.
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Feb. 15, 2011 6:34 p.m. mtn SuperDork
Good to know. They're just the snow tires, so I don't really care, I'm just curious.
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Feb. 16, 2011 2:00 a.m. novaderrik HalfDork
years and years.
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Feb. 16, 2011 5:38 a.m. foxtrapper SuperDork
Depends tremendously on the tires themselves, not the car. Some tires will flat spot in just a few hours, others can go years.
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Feb. 16, 2011 6:35 a.m. chknhwk Reader
Depends mostly on the tires and ambient weather conditions. Some can sit for months without flatspotting, others less than a week.
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Feb. 16, 2011 8:14 a.m. 92CelicaHalfTrac SuperDork
On the same subject, let's say i have a set of RS2s that have been sitting more or less in place on a car for about a year.
They are not flat, but i do know that these are prone to flat-spotting, though they usually work themselves out after a little while.
Chances that these will be useable again?
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Feb. 16, 2011 9:10 a.m. yamaha New Reader
the bmw has been sitting for 3 years, only moved 4 times......on rs2's, still no flat spots.....;)
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Feb. 16, 2011 9:11 a.m. 92CelicaHalfTrac SuperDork
Oh lord, now YOU joined...
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Feb. 16, 2011 9:17 a.m. yamaha New Reader
you missed the bmw thread......theres more ti owners here
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Feb. 16, 2011 9:25 a.m. Jay SuperDork
Do fully-inflated tyres actually flat-spot? I've left my DD parked for months at a time while was overseas a bunch of times and haven't gotten anything resembling flat spots. Even the time the valve stem leaked and it sat on a flat for six weeks didn't seem to cause any problem.
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Feb. 16, 2011 9:49 a.m. 92CelicaHalfTrac SuperDork
yamaha wrote:
you missed the bmw thread......theres more ti owners here
I know there's at least two on here with 6-cylinder swaps, too.
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Feb. 16, 2011 9:53 a.m. Logan New Reader
A contractor in Owasso told me he's seen tires the last 10 years deteriorate within 3 to 5 years VS 30 years ago tires would last decades without dry-rot or cracking. He said they changed the composition of the tires. Any one know / verify what brands to avoid ? (I bought coopers and they went bad in just 6 months under 10,000 miles; but others said they always buy coopers with good results... ??? ).
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Feb. 16, 2011 9:54 a.m. Hal Dork
Back in the 60's some of the bias belted performance tires were famous for "flat spotting" after sitting overnight.
My fathers Mustang felt like you were driving on a washboard for the first 10 miles every morning.
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Feb. 16, 2011 10:09 a.m. 02Pilot Reader
The Sumitomo HTR+ that came on my 5-series would flat spot sitting overnight if the ambient was above 50F or so. The shimmy went away in a couple miles, but it was annoying. They are gone now. Current Yokohamas don't do it at all, nor have various Bridgestones and Kumhos, nor the Dunlop snows on the car right now. Some tires are just prone to it.
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Feb. 16, 2011 10:57 a.m. oldeskewltoy Reader
Hal wrote:
felt like you were driving on a washboard for the first 10 miles every morning.
many current performance tires will get this kind of flatspot. It will usually go away once the tires are up to temp.
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Feb. 16, 2011 11:37 a.m. DaveEstey HalfDork
My Toyo R888's flat spotted readily if the temps were up. They evened out pretty quickly too.
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Feb. 16, 2011 12:03 p.m. DukeOfUndersteer SuperDork
Hahaha. I love you guys. Over on this Volkswagen Forum Site
, they freak out if their Gti's sit over the weekend, so the put them on jack stands to avoid flat spots :facepalm:
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Feb. 16, 2011 12:22 p.m. stuart in mn SuperDork
Hal wrote:
Back in the 60's some of the bias belted performance tires were famous for "flat spotting" after sitting overnight.
My fathers Mustang felt like you were driving on a washboard for the first 10 miles every morning.
They would do that back then. I remember driving with square tires on cold winter mornings.
However, modern tires don't do it any more - the problem was pretty much gone some time in the 1970s. I've never had an issue with radial tires, and my summer cars sit in the garage from October to April every year. I also have a couple older cars with bias ply tires that may sit for a year or more without being driven, and they work just fine as well.
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Feb. 16, 2011 1:19 p.m. iceracer Dork
My ZX2SR sat for 7 months on old Kumho tires. Rolled out with no problems. The brakes will cause more problems from the rotors rusting than the tires.
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Feb. 17, 2011 3:26 p.m. Paul_VR6 HalfDork
DukeOfUndersteer wrote:
Hahaha. I love you guys. Over on this Volkswagen Forum Site
, they freak out if their Gti's sit over the weekend, so the put them on jack stands to avoid flat spots :facepalm:
They're just trying to explain the constant use of jackstands.
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Feb. 17, 2011 7:42 p.m. sobe_death Reader
With Dunlop Star Specs, less than 8 hours if the temp is 50 degrees or less. I can come out from the office and my rear tires will be like cubes for about 10 miles of driving.
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Feb. 17, 2011 7:54 p.m. Toyman01 SuperDork
The Firestones on the Roadmaster will flat spot if left sitting more than two days. Flats are gone with in the first two or three miles. None of the rest of my cars have this problem.
When I was in high school I used to run Dayton 12 ply bias tires. If it was colder than 40 they would be like cubes the next morning. It usually took five to ten miles to get them to stop thumping.
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Feb. 17, 2011 10:34 p.m. 93gsxturbo HalfDork
It really depends on the tire and the temperature, as was said. My Interco TSLs would flat spot during an 9 hour work day, and if it was below freezing you would lose your fillings on the ride home.
Of course, Interco TSLs are not really street tires.
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Feb. 18, 2011 6:12 a.m. Klayfish Reader
02Pilot wrote:
The Sumitomo HTR+ that came on my 5-series would flat spot sitting overnight if the ambient was above 50F or so. The shimmy went away in a couple miles, but it was annoying.
Yep, had the same experience with Sumitomo HTR Zs. Like you said, it would go away within a couple miles, so it wasn't a big deal.
My Miata hasn't left the garage since December. I'm sure the first few miles will be a bit shaky, but it'll go away. No big deal....
