E38 7 Series M Parallel Tyre Sizes

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   OK I know this in the wrong section but I posted in the 7 

series forum and no one got back to me....

I have 18" M Parallel Alloys on my E38, they came factory 

fitted, I have always just changed the tyres going by 

what it said on the tyre wall but I noticed on a few 

sites people reckon the tyre sizes I am using may be 

wrong. 

One site states 

F | 235/50/18 

R | 275/40/18 

and another site reckons 

F | 255/45/18 

R | 285/40/18 

______________________________________ 

Now I have always thought that my back tyres never have 

enough rim protector and they look a bit stretched, plus 

I am changing them every 5/6 months (and its not the rear 

arms)would this be because my tyres are wrong. 

Any help would be appreciated.

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Xenon-Ireland Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Bavarian-Board Forum Sponsor Joined: 01-January-2010 Status: Offline Points: 13	Post Options Post Reply Quote Xenon-Ireland Report Post Thanks(0) Quote Reply Topic: E38 7 Series M Parallel Tyre Sizes Posted: 09-March-2010 at 18:56
	OK I know this in the wrong section but I posted in the 7 series forum and no one got back to me.... I have 18" M Parallel Alloys on my E38, they came factory fitted, I have always just changed the tyres going by what it said on the tyre wall but I noticed on a few sites people reckon the tyre sizes I am using may be wrong. One site states F \| 235/50/18 R \| 275/40/18 and another site reckons F \| 255/45/18 R \| 285/40/18 ______________________________________ Now I have always thought that my back tyres never have enough rim protector and they look a bit stretched, plus I am changing them every 5/6 months (and its not the rear arms)would this be because my tyres are wrong. Any help would be appreciated.
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Dergside Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Joined: 16-May-2004 Location: Mid West, Ireland Status: Offline Points: 4000	Post Options Post Reply Quote Dergside Report Post Thanks(0) Quote Reply Posted: 09-March-2010 at 23:28
	235/50/18 on 8" rims - front 255/45/18 on 9.5" rims - rear What sort of mileage are you getting from your tyres and what kind of wear (even, uneven, bald centre or edges, etc?). What brand of tyres are you running? What tyre pressures? When did you last have a 4 wheel alignment done?
	Now: BMW 523i SE '00, 318i SE - e91 '07, 325i Coupe '93. Prev: e46 328i SE Touring, 330Ci, 318Ci. e39 523i SE. e36 325i Coupe *2, 323i SE, 316iSE. e30 325iSE 2dr, 320i Conv, 320i 2dr, 316i.