CSL reps - what tyre and wheels size

[James Junior]

Hi guys,

I am shortly due to pick up a Z4 coupe and want to get a set of CSL style wheels on her ASAP. Been done to death I know, but it still looks fantastic.

I am after a set of 19"s and was going to order from BM Autosport.

Just trying to figure out what size to go for.

Does anyone know what wheel and tyre size combo I should go so as not to drastically alter the handling characteristics of the car from OEM?

 

[James Junior]

I would assume this is the combo I want?

225/35/19 front with 235/35/19 rears

Or do I need to go with 255/35/19 rears?

Amy help you could provide would be appreciated.

 

[Z4M-2006]

235 35 19 front
265 30 19 rear.

 

[James Junior]

Wow they're proper wide at the back then?

That's just what I needed to know, thanks a lot.

 

[hiltonfa]

235 35 19 front
265 30 19 rear.

That's the right combo :grin:

Sent from my GT-I8190 using Tapatalk 2

 

[Dav the wheel nut]

I actually went for 225/35/19 fronts and 265/30/19 on the rear. This keeps the rolling circumference within 4mm front and rear which is the same margin as the tyres fitted on the oem 108s for example.

 

[Marius]

225/35 front, 235/35 rear

 

[trailZ4]

I don't mean to hijack this thread but I have a similar question. I currently have 108s but I am considering switching to a set of 19" CS Y wheels.

The new fronts are 8.5 et38 and the rears are 9.5 et45 - I've used the offset calculator and it suggests the wheels will stick out and extra 13mm at the front and and extra 18mm at the rear.

I'm just wondering how this compares to others who have moved to CSL style 19"s (i.e. the difference in edge of the rim position)? 13-18mm doesn't sound like much but the last thing I want is for the wheels to be sticking out too much.

Any photos of your car with offset details would be appreciated

p.s. new tyres will be 235/35/19 front and 265/30/19 on the rear.

 

[GJC72]

Mine are 19 x 9.5 rear (265/30/19), 19 x 8.5 front (235/35/19) offset is et38 front and rear.

 

[trailZ4]

GJC72 - That looks very nice indeed, thanks.

So I probably don't need to worry as yours looks fine and my rears will be 7mm further inside the arch anyway (et45). Unless I've missed something...

Is yours lowered at all? Any binding issues?

 

[GJC72]

It's not lowered, just on standard sport suspension. I get slight rubbing on the front under full compression. Will probably go for 225 tyres on the front when I change them. Never had any issues on the rear

 

[Z4M-2006]

Mine are ET38 front and ET35 rear...Tyres 235/35/19 (F) and 265/30/19 (R).

No rubbing issues..

 

[trailZ4]

GJC72 - Cheers again, looks spot on sir.

Z4M-2006 Another fine example Out of interest, what size are your rear wheels (9.5J)? Cheers

 

[Dav the wheel nut]

This is mine lowered on 8.5 fronts and 9.5 rears with et35 all round. 225/35/19s on the front and 265/30/19s rear.
No rubbing issues.

 

[James Junior]

This thread is turning into borderline pornography.

Loving the pics guys.

 

[Z4M-2006]

Yep..........

Rear 9.5j,front 8.5j.....

 

[Danderton]

offset is et38 front and rear.

Are your rears not deeper concave in the middle? They look about the same as the fronts?

 

[GJC72]

They are deeper on the rear. Think it's the angle the pics have been taken that makes them look the same.

 

[James Junior]

Mine are ET38 front and ET35 rear...Tyres 235/35/19 (F) and 265/30/19 (R).

No rubbing issues..

What do you mean by ET38 front and ET35 rear?

 

[Z4M-2006]

Thats the Offsets of the wheels..