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costs BMW $1427 for a flat tire...

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Old 09-29-09, 02:48 PM
  #16  
Threxx
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Originally Posted by 92 SC400
I know someone who had RFTs and within like 10 miles of the warning the they were able to stop and the sidewall was starting to shred so I wouldn't even want to push it that far.
I'd bet it depends on the type of damage... if his flat tire was due to traumatic damage to the sidewall then of course it wouldn't take him far.
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Old 09-29-09, 02:54 PM
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Originally Posted by bagwell

I'd like to know the weight & cost difference between a donut spare and the compressor/fix-a-flat crap.
A RFT weighs about 4-5 lbs more than the same size conventional.
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Old 09-29-09, 03:00 PM
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Toyota got into some deep doo-doo for RFTs not working on the Sienna AWD, mostly because the Sienna uses indirect, ABS-based TPMS which can't distinguish between a full RFT or a aired-out RFT and the fact the OEM Bridgestone B380 is based off the B381 Bridgestone designed for Honda specifically for the Civic Hybrid - while the Dunlop had accelerated wear patterns.

Honda did slightly better with the PAX System, but PAX failed to gain the support of Michelin's biggest accounts - Costco, Sears and Wal-Mart for servicing those tires. Basically it was a repeat of the TRX tire. Ironically, Costco recently replaced their tire changers with Coats APX90Es, the same tire changer both Michelin and Honda require at every Honda or Acura dealer.
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Old 09-29-09, 03:03 PM
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One major advantage to RFTs that you guys seem to be overlooking is that they don't typically just rapidly decompress and explode while you're doing 80 down the freeway in the rain.

Originally Posted by rominl
guys... runflats on m3? are you killing me?? power is nothing without traction you know...

all m cars do NOT run runflats. runflats are crap on handling and traction
They are? Not that I am saying you're wrong but I've never heard somebody say that a non-RFT and RFT would have any difference in traction if they were otherwise identical. Where have you read that? Seems strange to me that they put RFTs on Corvettes, in that case.
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Old 09-29-09, 03:04 PM
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Originally Posted by nthach
Toyota got into some deep doo-doo for RFTs not working on the Sienna AWD, mostly because the Sienna uses indirect, ABS-based TPMS which can't distinguish between a full RFT or a aired-out RFT and the fact the OEM Bridgestone B380 is based off the B381 Bridgestone designed for Honda specifically for the Civic Hybrid - while the Dunlop had accelerated wear patterns.

Honda did slightly better with the PAX System, but PAX failed to gain the support of Michelin's biggest accounts - Costco, Sears and Wal-Mart for servicing those tires. Basically it was a repeat of the TRX tire. Ironically, Costco recently replaced their tire changers with Coats APX90Es, the same tire changer both Michelin and Honda require at every Honda or Acura dealer.
Michelin Abandons Its Pax Run-Flat Tire System

http://www.lemonlaws.com/2008/02/mic..._pax_runf.html
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Old 09-29-09, 03:07 PM
  #21  
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^ for Honda, yes. The Veyron and few Rolls-Royces will still use PAX.
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Old 09-29-09, 03:13 PM
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Originally Posted by nthach
^ for Honda, yes. The Veyron and few Rolls-Royces will still use PAX.

The PAX system flat tires can go 125 miles a 55 MPH.
Better than the 50 miles on a regular run flat.
A special tire change machine is needed for the PAX system.
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Old 09-29-09, 03:15 PM
  #23  
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I also must say I've used fix a flat a few times and unless the BMW system is for some odd reason different, you have to be pretty dumb to not figure it out.
 
Old 09-29-09, 05:38 PM
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Originally Posted by Threxx
I'm kinda surprised they don't use run flats...


Originally Posted by Joeb427
I took the run flats off the first week I had tmy 335.I went to conventional Michelins.RFTs suck,IMO.


Originally Posted by rominl
runflats are crap on handling and traction


What if he was stuck in an area without cell coverage?
there's prob. a phone number you can call from a land line once you get to one.
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Old 09-29-09, 05:39 PM
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Originally Posted by 1SICKLEX
I also must say I've used fix a flat a few times and unless the BMW system is for some odd reason different, you have to be pretty dumb to not figure it out.
my miata has the kit, no spare, for weight, space, cost reasons.
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Old 09-29-09, 06:15 PM
  #26  
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Originally Posted by Threxx
One major advantage to RFTs that you guys seem to be overlooking is that they don't typically just rapidly decompress and explode while you're doing 80 down the freeway in the rain.



They are? Not that I am saying you're wrong but I've never heard somebody say that a non-RFT and RFT would have any difference in traction if they were otherwise identical. Where have you read that? Seems strange to me that they put RFTs on Corvettes, in that case.
A good friend ran his fastest laps at Motor Sport Ranch with his Corvette on RFTs. As soon as he told me it had RFTs I asked him if he was planning on ditching them, and he said hell no!
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Old 09-30-09, 06:18 AM
  #27  
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How can you go on a long trip like that with no spare tire? Thats is like something my wife would do
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Old 09-30-09, 06:44 AM
  #28  
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Originally Posted by Joeb427
The PAX system flat tires can go 125 miles a 55 MPH.
Better than the 50 miles on a regular run flat.
A special tire change machine is needed for the PAX system.
I thought that's because the PAX doesn't use strengthened sidewalls, but but has like a ring internally that goes around the rim.
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Old 09-30-09, 07:24 AM
  #29  
bagwell
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glad my C5 had RFT's when I had a tire go to 0 psi @ 118mph....


I thought the super stiff sidewalls of a RFT would make the car handle BETTER? ride may be stiffer, yes, but shouldn't it handle better?
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Old 09-30-09, 07:52 AM
  #30  
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I've heard worse.

Back in the 90s when my dad a BMW. They charged him over $2000 CDN ($1400 USD)* for an oil change.

* I used the approximate exchange rate from the '90s (1 CDN = 0.70 USD)
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