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    Posted: 15-January-2010 at 13:34

This is the size currently on my/(SWMBO) E36 325i coupe but I am having extreme difficulty in obtaining any as they appear to have been discontinued?

so, anyone know where I can get some - at a reasonable price?

or failing that, what other size can I fit instead without messing up the fuel economy or acceleration?

225/50 or 225/60?

 

All (sensible ) suggestions gratefully received - thanks.

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Std tyre size for an e36 325i is 205/60/15.
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Originally posted by Dergside Dergside wrote:

Std tyre size for an e36 325i is 205/60/15.
Well, well! So a narrower/deeper tyre then? I wonder why ALL 4 are the wrong size??
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Points: 208 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ballcock Quote  Post ReplyReply Direct Link To This Post Posted: 15-January-2010 at 17:10

What wheels are they on - OE BMW alloys ? Throw up a pic of the ones you have and the wheel width (should be stamped on them if OE alloys).
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The rolling radius between 205/60 and 225/55 is virtually the same.  I'd guess that the previous owner wanted to sharpen up the handling a little bit, but on my third 325i now on 15" wheels and never felt them to be at a significant disadvantage.  I have a set of Style 29 16's in the shed and not feeling the need to rush to put them on it for additional grip or handling. 

IIRC the std Style 13 alloys on these are 7.0" wheels and either tyre is fine on this width.



Edited by Dergside
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Points: 4000 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dergside Quote  Post ReplyReply Direct Link To This Post Posted: 15-January-2010 at 17:29

BTW. I've found Vredstein Sporttrac's to work pretty well on the e36 325i on 15's.  Good grip in both wet and dry, fairly quiet and generally comfortable. 

I'm running the current one on P6000's as the unused spare suggests these were the factory fit and they work well too.  This one is a bit of a time warp car so looking to keep it original as far as possible.
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Originally posted by Ballcock Ballcock wrote:

What wheels are they on - OE BMW alloys ? Throw up a pic of the ones you have and the wheel width (should be stamped on them if OE alloys).

e36 325i std wheels are Style 13's like these:

http://market.autopartsfair.com/bmw-wheels_rims/item-zob4081 6f89.html?campaign=autoelf
Now: BMW 523i SE '00, 318i SE - e91 '07, 325i Coupe '93.

Prev:
e46 328i SE Touring, 330Ci, 318Ci.
e39 523i SE.
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e30 325iSE 2dr, 320i Conv, 320i 2dr, 316i.
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Originally posted by Dergside Dergside wrote:

e36 325i std wheels are Style 13's like these:
Nope, that's not what is on the car, mine are BBS type with a big centre cover that you take off with the spanner (the plot thickens) ....

.... pictures & details tomorrow
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Originally posted by thepits thepits wrote:

Originally posted by Dergside Dergside wrote:

e36 325i std wheels are Style 13's like these:
Nope, that's not what is on the car, mine are BBS type with a big centre cover that you take off with the spanner (the plot thickens) ....

.... pictures & details tomorrow


Remember the Bavarian Board Gallery Simon...



They look like Style 17 Here

205/60/15 or 225/50/16 rubber required (according to this link)

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Aahh, the posh upgrade ones.....!

I think the 16" versions are rare.
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Originally posted by Rossi Rossi wrote:

Remember the Bavarian Board Gallery Simon...



They look like Style 17 Here

205/60/15 or 225/50/16 rubber required (according to this link)
Oh yes - oops

they are stamped "BMW 47" & "FPS" & "94 25" & "1 180 448" and "7J x 15H2"

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I can get the correct tyre at 205/60R15 - the problem is won't I now have to change all four? As although it is narrower - so should go on the front - it is taller - hmmmmm

Amy more bright ideas?

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Simon, as long as you replace 2 tyres and have them fitted across the same axle, that is fine and is an MOT pass. As said above, the rolling radius isn't too far away from eachother, so you probably won't feel much difference to be fair.

The problem comes at MOT time when you have different size tyres fitted across the same axle.

But, if it was my car, I'd fit some 328i Sport 17" wheels on it



Edited by SHEPSM3
[IMG]http://i4.photobucket.com/albums/y135/ShepsM3/New-1a1.jpg">[IMG]http://i4.photobucket.com/albums/y135/ShepsM3/New-1b1.jpg">
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The difference in circumference is approx 0.24% or less than 5mm.  Can't be sure but I'd reckon that you could have a greater difference just by replacing the tyres on one end without replacing the other pair.

The following is an excellent site for these kind of questions.

http://www.carbibles.com/tyre_bible_pg2.html
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Originally posted by SHEPSM3 SHEPSM3 wrote:

Simon, as long as you replace 2 tyres and have them fitted across the same axle, that is fine and is an MOT pass. As said above, the rolling radius isn't too far away from eachother, so you probably won't feel much difference to be fair.

The problem comes at MOT time when you have different size tyres fitted across the same axle.

But, if it was my car, I'd fit some 328i Sport 17" wheels on it



Learned something new there, thanks.

So once new boots are fitted, a bit of wheel swapping to suit would be the cheapest solution then.
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Originally posted by SHEPSM3 SHEPSM3 wrote:

But, if it was my car, I'd fit some 328i Sport 17" wheels on it
and I suppose you "just happen to have a set ready for sale"?
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Originally posted by Dergside Dergside wrote:

The difference in circumference is approx 0.24% or less than 5mm.  Can't be sure but I'd reckon that you could have a greater difference just by replacing the tyres on one end without replacing the other pair.
If it wasn't 'like for like' I'd replace a pair.

So looks like a pair of 205/60's on the front and leave the 225/55's on the rear then would be the option?

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Sorry - after re-reading the previous post I wasn't very clear.  Silly me!

I agree with ShepsM3 that the different sizes front and rear will be fine.

The point I was TRYING to make is that the difference in rolling circumference with 205's on one end and 225's on the other is probably less than the difference in rolling circumference between new and part worn tyres of the same size on each end.

Hopefully that's clearer?  No?.....
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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.
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Simon, If your in doubt, use This link to calculate all aspects of the tyre size change.

Saves on all the confusing technical details

They recommend ±2.5% is the MAXIMUM difference in diameters
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