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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Why do you need to replace multiple RFT's if only one is flat?



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      04-29-2008, 11:21 AM   #1
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Why do you need to replace multiple RFT's if only one is flat?

Have read up some on RFT's. If only one RFT is flat, why do you need to replace a pair? Some have said that they need to replace a pair, or the whole set? WTF? I have xi. Why wouldnt I only be able to replace one?
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      04-29-2008, 11:24 AM   #2
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I had a flat on my RF. Thats the only one I replaced.

Car drives fine.
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      04-29-2008, 11:27 AM   #3
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I've never heard of such a thing, but I haven't really looked into it, either. If changing brands, I'd change all four. If there is a significant difference in tread depth between the two, I'd probably replace the axle-set.
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      04-29-2008, 11:27 AM   #4
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I think this really only applies if you've got a lot of miles on your tires. The difference in rotational diameter might be an issue with the Xi???

I dunno, but if you've got high miles on your tires, and you only replace one it could lead to some handling oddities or worse.
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      04-29-2008, 11:36 AM   #5
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Quote:
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I think this really only applies if you've got a lot of miles on your tires. The difference in rotational diameter might be an issue with the Xi???

I dunno, but if you've got high miles on your tires, and you only replace one it could lead to some handling oddities or worse.
Ok that makes sense. Yea, I only have 1500 miles on the car, but just trying to project future costs. If someone said that you cannot replace only one RFT, and had to replace two or the entire set - that would make a pretty strong case for getting those RFT the F off the car in a hurry!
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      04-29-2008, 11:38 AM   #6
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Quote:
Originally Posted by Revlis View Post
I think this really only applies if you've got a lot of miles on your tires. The difference in rotational diameter might be an issue with the Xi???

I dunno, but if you've got high miles on your tires, and you only replace one it could lead to some handling oddities or worse.
+1 on this. If the tread of the tire you are going to pair it with the replacement is too big a difference, then it is smarter to change both of them. Otherwise, change only one of them.
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      04-29-2008, 11:38 AM   #7
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BTW I have Continental RFT's: so far, so good.

$145 instead of the other more high priced RFT's ($300-400!!!)
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      04-29-2008, 12:06 PM   #8
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I don't think it has anything to do with RFT's: I've always been told that about tires, period. Always replace tires in pairs unless the other is close to new so you don't have unbalanced grip/weight/handling.

Is this really unusual advice? It always struck me as sensible.
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      04-29-2008, 12:32 PM   #9
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Quote:
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I don't think it has anything to do with RFT's: I've always been told that about tires, period. Always replace tires in pairs unless the other is close to new so you don't have unbalanced grip/weight/handling.

Is this really unusual advice? It always struck me as sensible.
Not unusual. I am just new to RFT's. Thanks for the reply!
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      04-29-2008, 12:45 PM   #10
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Quote:
Originally Posted by tintivilus View Post
I don't think it has anything to do with RFT's: I've always been told that about tires, period. Always replace tires in pairs unless the other is close to new so you don't have unbalanced grip/weight/handling.

Is this really unusual advice? It always struck me as sensible.
I don't think it's unusual, I do think that folks are a little more twitchy when it comes to RFTs though cause 1. They are relatively new to many, and 2. They are pretty damned pricey.


GreenThree, I pulled the OEM wheels and tires off at about 1200 miles. I replaced them with the wheels in my signature then again with the new ones in my garage waiting to be installed. Part of my reasoning was that I didn't like the extra firm RFT sidewall and I didn't want to be replacing RFTs or wheels when I gave the thing back and got a new one.

So I just purchased a complete wheel and tire set and that way I don't have to worry about rashing oem wheels or replacing OEM RFTs.
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      04-29-2008, 01:12 PM   #11
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Thanks for the info guys
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