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[#] Tue Apr 05 2011 21:00:32 EDT from Ford II @ Uncensored

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So ... are the aftermarket TPMS worth owning, if you drive an
"ordinary" car without high performance tires?

The few opinions I've gotten so far were not great impressions, and there's the whole anybody-can-easily-steal-them problem.

I wouldn't do it at this point as I live in the ghetto, but if it would save me $120 every time kate got a flat and she got a few more flats I'd do it.
Or I'd just buy runflats.

[#] Wed Apr 06 2011 23:07:36 EDT from IGnatius T Foobar @ Uncensored

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Runflats *require* a TPMS, otherwise the driver may have no way of knowing that a tire has lost its pressure. What is ironic is that once you have a TPMS, runflats aren't quite as needed for the purpose of "I didn't know it was flat until I drove 20 miles and ruined the sidewalls" purposes.

Not to worry, though: our friends at the federal government, who know what's best for us and aren't afraid to force us to pay for it, are phasing in a mandate for all new cars to be equipped with TPMS. We will all own them eventually.

[#] Fri Apr 08 2011 11:43:42 EDT from LoanShark @ Uncensored

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Weak. TPMS are purely a convenience item.

[#] Sun Apr 10 2011 22:53:45 EDT from the8088er @ Uncensored

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Wait... how, even with runflats, do can you possibly be unaware while driving on a flat tire?

[#] Sun Apr 10 2011 23:20:25 EDT from Animal @ Uncensored

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Because people aren't very good at driving in the first place?

[#] Sun Apr 10 2011 23:42:29 EDT from the8088er @ Uncensored

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How could you not be aware of the pull in the steering and the physical tilting?

[#] Mon Apr 11 2011 09:08:15 EDT from wizard of aahz @ Uncensored

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Trust me. Plenty of people don't get that their car isn't handling correctly. This is not the first time I've heard of these types of things.

[#] Tue Apr 12 2011 11:13:15 EDT from IGnatius T Foobar @ Uncensored

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I'll bet people would notice that their car isn't handling correctly if it's a Chevrolet. Evidently, our friends at Government Motors have started building cars with steering wheels that simply fall off while you drive.

[#] Tue Apr 12 2011 12:24:27 EDT from the8088er @ Uncensored

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It wouldn't suprise me if they reached that point. My 2004 GM-built Saturn SUV is equipped with power steering that shuts off and comes back on while you drive.

[#] Wed Apr 13 2011 11:10:40 EDT from saltine @ Uncensored

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There is another option, a steel ring that bolts onto the rim on the inside. When the tire is low the car rolls on the
Steel dealie and its like the old wagonwheel days. The driver would know its flat. But I think it may require locking rims as well for the drive wheels which AFAIK are not DOT legal. Check out the armored car sites for more info

[#] Fri Apr 29 2011 17:23:29 EDT from Ford II @ Uncensored

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Wait... how, even with runflats, do can you possibly be unaware while

driving on a flat tire?

run flats maintain their shape and handling ability when they've got low or no air pressure in them, so you can't tell by looking or by driviability.

[#] Fri Apr 29 2011 17:22:54 EDT from Ford II @ Uncensored

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Weak. TPMS are purely a convenience item.

au contrair.

[#] Fri Apr 29 2011 17:22:42 EDT from Ford II @ Uncensored

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knowing that a tire has lost its pressure. What is ironic is that once

you have a TPMS, runflats aren't quite as needed for the purpose of "I

didn't know it was flat until I drove 20 miles and ruined the
sidewalls" purposes.

They're not needed for that, actually, the reasoning goes the other way.
They put the TPMS in because you couldn't tell when a runflat was flat, but the run flats came first for the purpose of a) not carrying a spare, and b)not having the soccer mom waiting on the side of the road with a bunch of screaming kids waitig for a tow truck.
But once they realized how useful TPMS is and how many accidents it avoids they made it a requirement.
Lots of people get flats and lose control of their car because they don't know they have low tire pressure, you tell them, and some of them will do something about it and avoid the accidents.

[#] Fri Apr 29 2011 17:23:42 EDT from Ford II @ Uncensored

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How could you not be aware of the pull in the steering and the physical

tilting?

because it doesn't happen.

[#] Fri Apr 29 2011 17:27:53 EDT from Ford II @ Uncensored

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There is another option, a steel ring that bolts onto the rim on the
inside. When the tire is low the car rolls on the
Steel dealie and its like the old wagonwheel days. The driver would


I can think of a whole host of things wrong with that, but here's the first few:
so if you get low tire pressure or, dare say, hit a pothole, this steel ring chews a hole through the tire ruining it immediately. You'd get no traction, no breaking...
I see what you're getting at and maybe there's something there, but what I'm envisioningof what you're saying doesn't sound pretty.
Ever seen this?
http://www.google.com/imgres?imgurl=http://synamatiq.files.wordpress.com/2009/08/tweel021.jpg%3Fw%3D450%26h%3D301&imgrefurl=http://synam atiq.com/2009/08/12/airless-tires-for-007-missions-in-ussr/&usg=__ejtzXz1lUOkxI-K22xcYs-BQNxU=&h=301&w=450&sz=51&hl=en&start=0&zoom=1&tb nid=JK0IfdC5E5fu_M:&tbnh=134&tbnw=182&ei=Ky27Taq8BtS2twfUvsG0BQ&prev=/search%3Fq%3Dexperimental%2Btire%2 hl%3Den%26client%3Dubuntu%26hs% 3DelG%26channel%3Dfs%26biw%3D1266%26bih%3D695%26tbm%3Disch&itbs=1&iact=rc&dur=257&page=1&ndsp=28&ved=1t:429,r:4,s:0&tx=61&ty=53
erm... this.

http://synamatiq.com/2009/08/12/airless-tires-for-007-missions-in-ussr/


Apparently it was invented in the 60s or something, my dad knows the guy who worked on the project. Guess why they're not in production.

[#] Fri Apr 29 2011 17:59:48 EDT from IGnatius T Foobar @ Uncensored

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NIH? Or is it one of those situations where the USA spent megabucks on a zero-gravity pen while the Russians used a pencil?

[#] Mon May 02 2011 04:50:09 EDT from saltine @ Uncensored

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The runflat rings that strapon the rim do pinch the tire between the pavement and stuff, but the wear is
not enough to matter for the 50 miles or so they're supposed to get you. The key is the locking rim to prevent the sidewalls from popping off the rim and jamming your wheelwells... All necessary if you sell drugs.

... Or are a diplomat... or just paranoid.

[#] Tue May 03 2011 17:13:58 EDT from Ford II @ Uncensored

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off the rim and jamming your wheelwells... All necessary if you sell
drugs.

... and why would you know that.

[#] Tue May 03 2011 17:14:47 EDT from Ford II @ Uncensored

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NIH? Or is it one of those situations where the USA spent megabucks on

a zero-gravity pen while the Russians used a pencil?

They're not in production because goodyear didn't want them to be.

By the way.. http://www.snopes.com/business/genius/spacepen.asp

[#] Wed May 04 2011 00:20:56 EDT from the8088er @ Uncensored

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Apr 29 2011 5:23pm from Ford II @uncnsrd
How could you not be aware of the pull in the steering and the
physical

tilting?

because it doesn't happen.

Wow. I thought they just manged to run while flat wihtout dithout dismounting and disentigrating.

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