Alloy / Wheel size |
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timausten
Newbie Joined: 17-August-2005 Location: Kent Status: Offline Points: 33 |
Topic: Alloy / Wheel size Posted: 25-August-2005 at 10:29 |
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Hi, I've got an M635, And I'm looking to purchase some alloys and found some from a '97 Seven series could someone tell me if they can be fitted to a E24? they are 245/55R16 5 Stud. Can they just be swapped does anyone know ? Thanks Tim |
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Horsetan
Really Senior Member II Say Neigh to Gatsos Joined: 11-April-2003 Location: Please let it be Ireland Status: Offline Points: 6381 |
Posted: 25-August-2005 at 10:39 | |
What is the alloy size? Is it 8x16 all round? Or something else? |
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timausten
Newbie Joined: 17-August-2005 Location: Kent Status: Offline Points: 33 |
Posted: 25-August-2005 at 11:02 | |
Sorry but I no idea when it comes to tyre size, but all four are the same I believe as above. What he said exactly 245/55R16 100W If they are 8 x 16 will they rub ? or just when on full lock on front ?
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Hiabboy
Really Senior Member I Joined: 05-February-2005 Status: Offline Points: 325 |
Posted: 25-August-2005 at 12:16 | |
There will be clearance issues on the front strut almost certainly. |
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Profit is more reasonable than justice.
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Horsetan
Really Senior Member II Say Neigh to Gatsos Joined: 11-April-2003 Location: Please let it be Ireland Status: Offline Points: 6381 |
Posted: 25-August-2005 at 13:03 | |
One of the original tyre sizes was 240/45 R415, so you have an increase in width and aspect ratio.
8x16 should be fine (many cars are on 8x17), especially at rear, but your tyre size would then have to be as near as possible to the original metric proportions. This is partly because you do not want to affect speedo readings too greatly. In terms of full lock at front, it sounds as though you might be slightly hampered by the current tyre size there. |
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Brucey
Really Senior Member II Joined: 07-March-2004 Location: United Kingdom Status: Offline Points: 744 |
Posted: 25-August-2005 at 14:16 | |
your new tyres will be a larger diameter; this will throw the speedo off. I estimate the new tyres to give an overall diameter of 675mm, where 640mm is a 'normal' size for an E28. This means that the tyres will probably foul the front strut, even if the wheel offset (which should be ET15 for an 8" rim on your car) is OK. cheers
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~~~~~~~ Brucey ~~~~~~ |
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timausten
Newbie Joined: 17-August-2005 Location: Kent Status: Offline Points: 33 |
Posted: 25-August-2005 at 14:48 | |
Hi Thanks for your posts, Give me something to think about ! Tim |
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AndyS
Really Senior Member II The Last of the Few Joined: 21-August-2003 Location: 55 � North Status: Offline Points: 1365 |
Posted: 25-August-2005 at 17:35 | |
For a 16" rim you should be looking at a 225/50 which is an almost spot on replacement for a 240/45x415 TRX.
235/50 aren't too far off the mark. |
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Sohlman
Really Senior Member II Coupe Chairman Joined: 19-August-2003 Location: Surrey Status: Offline Points: 1259 |
Posted: 31-August-2005 at 08:22 | |
The wheels will more than likely fit, but the tyres will need to be changed as they are just too big. I run 16x7 wheels with 225/50/zr16 tyres. To be honest the sixes with the larger metrics are if anything over tyred and the cars handle better with a thinner tyre. I personally think my six handles better with the 225 width tyres then with the 235/45/zr17 that i had on before although these handled 50% better then the previous metric rubbish. If you wanted to run a 245 width tyre you would probable have to go down to an aspect ratio of 45. IE 245/45/ZR16. Out of interest what 7 series model have the tyres come from. Is it a late e32 or the newer model as if its a newer model i am not sure if these wheels are the same offset. |
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johnny318is
Senior Member II Joined: 29-December-2002 Location: United Kingdom Status: Offline Points: 176 |
Posted: 31-August-2005 at 16:25 | |
Wheels from a 97 E38 7 series will not fit an E24.
Ask me how I know? Tried to fit some this evening, as James says they're the wrong offset. |
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John
Plymouth UK 96 E34 540i Individual 98 E39 523i SE 01 Renaultsport Clio 172 |
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Jimbob
Bavarian-Board Contributor Joined: 27-July-2005 Location: Live: West Sussex - Work: Islington Status: Offline Points: 190 |
Posted: 02-September-2005 at 10:00 | |
I'll stick my question in here rather than starting a new thread, since its relevent. My 635 is an 1981, and is therefore pre-TRX. It still has the original 14" BBS wheels with period rubber. I've just bought (ebay) a set of 16" BBS crossspokes from an M635, but they are rims only. I'm going to go for 225/50 for the rubber, but what do you recon about the finish of the Rims? They are going to be referbished, but should I go for standard powdercoat or polished?. Edited by Jimbob |
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And so says Jimbob.
1981 635csi 81k miles. Will be fixed, but not by me. |
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Brucey
Really Senior Member II Joined: 07-March-2004 Location: United Kingdom Status: Offline Points: 744 |
Posted: 02-September-2005 at 16:10 | |
rim finish is personal choice; polished looks nice, but is impossible to keep good in the winter when there is salt on the roads unless you wash clean the wheels after every drive. Just out of interest how far out were the E38 wheels?? cheers
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~~~~~~~ Brucey ~~~~~~ |
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AndyS
Really Senior Member II The Last of the Few Joined: 21-August-2003 Location: 55 � North Status: Offline Points: 1365 |
Posted: 03-September-2005 at 11:44 | |
I take it they were originally from an 8-series? If they were the original equipment on an M635 then they're TRX's (& hence 16.4"). |
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Sohlman
Really Senior Member II Coupe Chairman Joined: 19-August-2003 Location: Surrey Status: Offline Points: 1259 |
Posted: 03-September-2005 at 15:34 | |
The e28 M5 had 16" rims as standard, and so they might be a set of these and they are quite rare. Also the E30 M3 had a 16" BBS rim available. As andyS has mentioned the M635 factory options was the Metric rim. Saying that i am sure at the time you could have specified an imperial rim. (Waiting to be corrected on this) as i was a little to young to be ordering brand new 635's.
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Sunday 10th July Brooklands Sharkfest and Big Coupe Day. Coupe Events
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Jimbob
Bavarian-Board Contributor Joined: 27-July-2005 Location: Live: West Sussex - Work: Islington Status: Offline Points: 190 |
Posted: 03-September-2005 at 16:08 | |
Its true that I don't know what they were on originally, but they came from a guy breaking a knakered M635 (bought his steering wheel as well to replace my 'Bus' wheel). Here is a picture to see if that sheds any light. Currently got two wearing 205/55 and two with 225/50. I'm gussing they could be after market add ons, as they have BBS centres rather than BMW ones. Should suit me fine though, since they are the same pattern as my current 14" wheels, and recently came off a 6 so should fit fine. |
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And so says Jimbob.
1981 635csi 81k miles. Will be fixed, but not by me. |
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Hiabboy
Really Senior Member I Joined: 05-February-2005 Status: Offline Points: 325 |
Posted: 06-September-2005 at 03:31 | |
Those wheels were originally fitted on south african e23 745s (24valve) and are very rare. Obviously being a BBS wheel they could have been bought aftermarket as well.. The tyre sizes as fitted are correct. Hopefully you got the bolts as well as i'm sure they are longer than standard. |
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Profit is more reasonable than justice.
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Jimbob
Bavarian-Board Contributor Joined: 27-July-2005 Location: Live: West Sussex - Work: Islington Status: Offline Points: 190 |
Posted: 06-September-2005 at 04:32 | |
Longer than standard bolts. Why is nothing easy? Thanks for the help guys. |
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And so says Jimbob.
1981 635csi 81k miles. Will be fixed, but not by me. |
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Horsetan
Really Senior Member II Say Neigh to Gatsos Joined: 11-April-2003 Location: Please let it be Ireland Status: Offline Points: 6381 |
Posted: 06-September-2005 at 04:35 | |
You bought a Six, and expect it to be easy???? |
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Jimbob
Bavarian-Board Contributor Joined: 27-July-2005 Location: Live: West Sussex - Work: Islington Status: Offline Points: 190 |
Posted: 06-September-2005 at 04:47 | |
Heh, I expected Rot, bad fuel consumtion, big service bills, difficulty in getting parts, many many hours of cleaning... but "longer than standard bolts"!!! thats just taking the p***! Can't say I'm suprised though! |
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And so says Jimbob.
1981 635csi 81k miles. Will be fixed, but not by me. |
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Brucey
Really Senior Member II Joined: 07-March-2004 Location: United Kingdom Status: Offline Points: 744 |
Posted: 06-September-2005 at 13:39 | |
Hiabboy- I am in awe (mixed with a certain amount of concern at how you might spend most of your spare time) over your wheel recognition skills. We're not worthy! etc etc... cheers p.s. rimstock will sell you unfeasibly long wheel bolts (together with some spacers that are not the right size (74mm male spigot), but can be turned down to fit if required.) Edited by Brucey |
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~~~~~~~ Brucey ~~~~~~ |
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