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run flat in the front but not the rear?
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11-11-2012, 09:02 PM | #23 |
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This makes no sense. Its recommended to have all tires matching, but not mandatory.
The car will drive fine under normal driving conditions. Of course the possibility of getting a flat on the two non-rft, but it really wont make a huge difference. RFT are heavier then non-rft. If that is your situation then go for it. if you have the money then of course match them. You're not going to die or mess up any mechanical like these people make it seem. |
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11-12-2012, 04:41 PM | #24 | |
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i mixed my tires (non run flats in rear) and at a gas station a cute chick noticed my bad ass ET streets in the rear and started asking about my car We ended up going for a drink and i went home with her. In the morning i left her place and got in a wreck bcuz the front tires felt like they were floating when i raced a street bike from a red light. It was a little wet out. Anyway the cars in the shop, i got a ticket for reckless driving and my wife found out about the girl bcuz she wrote "call me" in lipstick on my dash board. I must have been pretty drunk. So yea, OP i wouldnt do it
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11-12-2012, 05:53 PM | #25 |
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Runflat tires aren't made out of some magical, technologically advanced material that controls every aspect of your handling. If it was, every tire would be made out of it, because they are virtually the same. A runflat tire is designed to be driven approximately 50 miles at 50mph or less with little or no air pressure "safely". Driving any tire without air in it will cause the tire liner to breakdown and shred from rubbing against itself leaving a lovely smelling ground rubber.
Runflat tires are not designed to support the weight of the vehicle, the air inside them is, runflat tires are designed to have thicker material so that when you drive on them flat they don't immediately shred away and could make it down the road a ways. Several if they are punctured at all are completely ruined because they can no longer fulfill that purpose. Mixing run flat tires and non runflat tires is not dangerous in the least, mixing performance rated tires or models of tires across the same axle can be dangerous, but no more than having a wheel out of alignment. The weird feeling that people may be experiencing by mixing tires could possibly be related to the difference people feel in running nitrogen in their tires, completely in their heads.
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11-12-2012, 10:12 PM | #26 | ||||
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11-13-2012, 05:23 PM | #27 | |
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http://www.conti-online.com/generato...nd-mixing.html http://us.coopertire.com/Tire-Safety...re-Mixing.aspx And this one from the official TüV side: http://reifentest.popgom.de/reifenwe...e-vorschriften I'm not making this up guys... Sure your car will not break out the first corner but would you drive a car that has a 1% chance that the breaks stop working...
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11-14-2012, 12:13 PM | #28 | |
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11-14-2012, 12:48 PM | #29 | ||
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I don't know enough to offer my opinion on mixing RFT with go-flats, but I hope this at least clarifies BMW_Belgier's post before everyone goes down the wrong road. |
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11-14-2012, 01:05 PM | #30 | |
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That is correct, my english just isn't my mother language...
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11-14-2012, 01:45 PM | #31 | |
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For what it's worth, brakes are different from breaks although both are nouns. Just to be even more confusing, break is also a verb that means something different from the noun of the same spelling. At least the word brake is a little more sane in that your brakes are what allow you to brake, hopefully allowing you to stop your car. Confused yet? |
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11-14-2012, 03:10 PM | #32 |
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i tried to warn you guys
lost the car, bunch of money and the wife over it.
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11-15-2012, 06:46 PM | #33 | |
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So guys (and ladies), all those sites of tire testers, manufacturers and official safety testers are all making this up? Convince me with facts that mixing RFT and non-RFT is completly safe! I gave you enough info saying it's not safe...
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11-15-2012, 07:30 PM | #34 | |
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11-15-2012, 10:43 PM | #35 |
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Tell me!
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11-16-2012, 03:51 PM | #36 |
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Just make sure you're not mixing on the same axle
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11-17-2012, 07:16 AM | #37 |
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Fitting runflats vs. regular tires on the front of a car has absolutely no relationship to how much understeer the car will end up with. Every tire, properly inflated, will have its own performance envelope based on compound, tread design, tread depth and load. Knowing simply that the front tires are runflats and the rears are not is not sufficient information to determine that the car will have increased understeer.
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11-17-2012, 01:38 PM | #38 | |
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Actually no, that's a huge backfire on yourself. To simplify what you just said, having different tires front to rear has no effect on handling balance. Even more retarded than any of the previous retarded retardedness. Even a sh*tty non rft like Hankook V12's are much grippier than stockers.
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11-17-2012, 01:54 PM | #39 | |
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there are performance RFT that also grip better then oems. Idk how understeer would work into how the car handles. the tire is heavier, but in terms of grip, i dont see how rft and non rft are that much different. |
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11-17-2012, 02:07 PM | #40 | |
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11-17-2012, 03:26 PM | #41 |
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So please explain to us then how fitting stock RFTs up front and regular tires out back will, by default, result in significantly more understeer. I'm all ears...
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11-17-2012, 05:59 PM | #42 | |
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More grip in the rear means the front washes out first aka understeer. Or in your case you'll hit the wall going straight. More grip in the front means the rear will give up first aka oversteer. Or again, in your case, you will hit the wall backwards in a big cloud of smoke. And once more, it is a VERY safe assumption to assume the non rft tires are grippier.
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11-17-2012, 07:02 PM | #43 |
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11-17-2012, 07:06 PM | #44 | |
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RFT only change the structure of how the tire is made. RFT are much heavier so they might not perform as well, but not a difference anyone can tell daily driving on it. Track is a different story. Oem tires on m3 are RFT michelin pilot sport 2 and it handles amazing. |
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