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BMW 3-Series (E90 E92) Forum
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From RUNflat to NON runflat? who's done this and is it worth the trouble?
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09-07-2010, 07:53 AM | #89 | |
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I plan to do it too .... as soon as my RFT are worn Had cracks in both my rear wheels (19 inch + RFT is bad news) cost me $1,000- to change one wheel the other BMW changed under warranty. Loved your post ... happy motoring
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09-08-2010, 12:41 AM | #90 | |
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I put on Pirelli P Zero Nero as-well excellent grip on dry and unreal in the wet had a very fast run through the mountains and very happy. Go for it you won't be disappointed.
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09-08-2010, 07:40 AM | #91 |
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Hello I am new to this forum, just got my 330i e90 2010 performance pack with 18" wheels and RFTs of course :S here in Egypt the streets are really bad with many bumps and such stuff and the RFT is making the car extremely rough and annoying to drive, so I was thinking about changing to regular non-RF tires, so I have some questions, will regular tires fit on my stock alloys? will I lose the tire pressure monitor? will I get a malfunction light or anything like that? I am not concerned about trunk space so I can put a spare without any problems.. thank you in advance
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09-08-2010, 07:51 AM | #92 |
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You should be fine on all points. Many people change over to NRFT on there cars. I recommend you go to one of your major tire shops and get confirmation to your questions. In general most people change to Continental non-run-flat tires. PS. You should add your tire size to your post.
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09-09-2010, 01:13 PM | #95 |
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I just bit the bullet to save some cash and ordered a set of NRF Yokohama AVID tires from Tirerack for my '06 330xi.
http://www.tirerack.com/tires/tires....omCompare1=yes I chose to buy a Slime brand flat tire repair kit to keep in the trunk. Slime Powerspair 48 Piece Kit http://cgi.ebay.com/ebaymotors/ws/eB...8050&viewitem=
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09-15-2010, 09:07 AM | #96 |
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just bought a 3 series 3 weeks ago and my question is is it ok to have "bmw mobility kit" regardless you have RFTs? i am thinking to get one because i am not too sold on those RFTs. i am reluctant. i found one in ebay (mobility kit) but said that i cant use it on RFTs and on another website is said its a MUST HAVE if i have RFTs. now i am really lost! help please.
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09-15-2010, 09:18 AM | #97 |
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There is nothing wrong in using a chemical sealer on a rft BUT you will prematurely ruin the tire pressure monitors that is now integral part of the tire valve stem assembly. The idea of rft is that even at low tire pressures, the tire walls is able to provide safe load for a pre-determined distance. And how do you know when you ain't got any pressure on a rft? Only through tire pressure monitors sensors, it is hard to discern that you got a flat on a rft, and now you are relying on the sensors to tell you that you got a flat. And your tire pressure monitors will fail premature if exposed to a caustic environment such as that of a chemical tire sealer. So what is the bottom line? I would not inject any sealer chemical into a rft. By the way a oem Beru tire monitor replacement run about 120 bucks or so, depending where you order from,, plus the cost of tire and mounting. And you can't repair a puncture on a rft, contrary to popular misconception. Yes, you can seal the puncture itself but you have already compromised on structural viability of the wall rigidity which is a function to its usefulness based on mileage. The rft's are here to stay, it is reliable, it has been in use in certain off road equipment for years, it works but it produces a very harsh rough ride. This is my opinion, others will certainly differ from what I have concluded based on my experience as a fleet owner of on and off road vehicles equipped with rft's. As a bimmer owner I HATE them, it deprives me of a smooth ride which I enjoyed on my e46.
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Sou fanático por conversíveis... Last edited by hookah66; 09-15-2010 at 09:48 AM.. |
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09-15-2010, 11:51 AM | #98 | |
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so youre saying rft is reliable but you cant repair it? does it mean you puncture your rft then you get to go home and thats it. i have to replace it since i cannot use those tire sealant? so these RFT is a one time thing? |
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09-15-2010, 09:58 PM | #99 |
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What I am saying is that once a RFT is punctured you don't know how many miles you have driven on it; so for safety reasons it is desirable for you to replace it. The TPMS is not an instantaneous warning but it will tell your tire pressure is low after certain rotations. You may repair a punctured RFT with a plug just like any regular tire, but then you have compromised the RFT wall integrity, so the next time you got a puncture the rigidity of the wall is not there to give the RFT feature thereby your tire will collapse in a much shorter distance or you may have a blow out. The caustic properties of a tire sealant will cause premature corrosion of your TPMS monitor which is typically mounted in the inner cavity of the tire attached to your valve stem. The sealant will not harm the rubber of a RFT.
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Sou fanático por conversíveis... Last edited by hookah66; 09-15-2010 at 10:05 PM.. |
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09-16-2010, 04:51 AM | #100 |
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I currently have run-flats 225/40/17 at the front and 255/35/17 at the rear. I recently had two punctures in tha same day and had to put in a plug. Not too keen on this and also a good excuse to change from stock 17's to AC Schnitzer 18's. Mags will be here by the end of the month and tyres will be Falkons. I hear that non run-flats are the best. I also got myself one of those cigarette lighter pumps and a tyre repair kit. Will post pics as soon as I have them put on
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09-16-2010, 06:52 AM | #101 | |
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i guess the safest way is to buy a spare then. it doesnt make sense with all this sealant OR RFTs because one way or the other you will hurt either the tire or you will end up damaging the sensors. bottom line sealant will damage both tires and sensor... |
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09-16-2010, 10:29 AM | #102 |
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You are taking everything out of context. The RFT's are a proven and well tested product. Even super luxury brands such as Maserati & Bentley will be equipped as part of the OEM. There is no need to carry a spare, this is a mentality of yesterday. I HATE them because of the rough ride not because they are UNSAFE!!! I refilled my tires with nitrogen gas which helps to lessen the harsh ride. Michelin & Goodyear just introduced new soft rolling edge RFT's which I am very much interested. I drive the E93 which means that I ain't got no room for a spare nor a jack in my trunk once my top in open. Think positive and trust the hyper Ingenieure from Műnchen who designed your wondercar....
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Sou fanático por conversíveis... Last edited by hookah66; 09-16-2010 at 10:44 AM.. |
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09-16-2010, 10:34 AM | #103 | |
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2. Lol i actually had flats, not even 24hrs after i switched. Why? Freaking Queensboro bridge has so many potholes and my entire right side blew out...Yes, all 2 tires and not to mention it gave my flawless 189's a nice 1" rash...Had to call my dad to get my tools (luckily I had my 268's with me because some punkass buyer decided to be funny and not show up. |
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09-16-2010, 12:50 PM | #104 |
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[QUOTE=hookah66;8010377]You are taking everything out of context. The RFT's are a proven and well tested product. Even super luxury brands such as Maserati & Bentley will be equipped as part of the OEM. There is no need to carry a spare, this is a mentality of yesterday. I HATE them because of the rough ride not because they are UNSAFE!!! I refilled my tires with nitrogen gas which helps to lessen the harsh ride. Michelin & Goodyear just introduced new soft rolling edge RFT's which I am very much interested. I drive the E93 which means that I ain't got no room for a spare nor a jack in my trunk once my top in open. Think positive and trust the hyper Ingenieure from Műnchen who designed your wondercar....
i am just a little worried because its my first brand new luxury car and dont know much about it yet. plus i bought this and came with RFTs but i think the life on these are just 40% so thats why i am just hesitant on going out there. everything is new to me especially this no-spare-tire car features...but thanks alot for giving input on all of these. appreciate it. |
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09-16-2010, 05:20 PM | #105 | |
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09-16-2010, 05:26 PM | #106 |
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Huge difference. Replaced RFT in my previous car with Yoko Advan S4's and my god it was amazing. Plan to do the same when the OEM Bridgestone's on my 335xi wear out.
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09-16-2010, 06:32 PM | #107 | |
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you have a winter set as well?
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09-20-2010, 02:24 PM | #109 |
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scream as loud as you can!!!.... then send your wife/gf/mistress (or bf) to nearest gas station for help while you stand guard next to your beloved bimmer against thievery...just kidding. I would carry an electric air pump/jack stand if you got space and bimmer Assist/AAA plans. I personally carry a plug repair kit which is not difficult to use after practice and a small elect pump for air. Slime kit will ruin your tpms.
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