izzy34

Hello everybody,

I am new at this forum, i have tried to find the answer for my question though either i am out of luck or could not search hard enough, so i thought asking it would be the very best option.

I have an E60 530i and looking to change my wheels to 19", do not want to go with 20s at this moment....

The question is about the ETs of the wheels, they are staggered, 19X8.5 and 19X10.5, i know for a fact that 8.5s need to be ET15 in 19s which the seller has in stock, but i have no idea about the 10.5s, and these wheels come in 19X10.5 ET30, seems to be the E46 M3 offsets.

I really appreciate if any of you guys can tell me if these ETs will work,especially for the rear, if not, what mm spacers should i use to fit the rear wheels as i do not want the rears stuck inside and would like them to flush out as they can be.

Thanks for reading this and i appreciate any answers.

C's Bimmer

Also, here is a tool you should use for future reference. http://www.1010tires.com/WheelOffsetCalculator.asp

Welcome to E60.net! Try and update your sig, so we know where you're from and what options you have on your 530i.

izzy34

Thank cmansbimmer,

I will take into consideration and update my sig asap, sorry for that, i should have thought about this at the beginning...

First time using a E60, had 3 series before and i knew alot about them, so basicly what i have understood from your post is
OEM 166 M5 wheels has 19X10.5 ET32 in rear, factory installed, so as there is 2mm difference between the one i am thinking
compared to OEM M5 19X10.5 ET32, do you think it would be a problem as mines will flush 2mm out.

Thank again......

vegastrashed

Wait a sec... cman, you might be the expert on xi wheels but I have the 166s and know a few things or two.

Okay, here's the nitty gritty. The OEM 166 wheels are 8.5x19 ET:12 for the front and 9.5x19 ET:28 or ET:17 for the rear. Now, the new guy, , has 8.5x19 ET:15 for the front. This is fine. He'll be running 245/35/19 tires. As for the rear, 10.5x19 ET:32 there is a difference of 1 inch in width and 4mm in offset of the wheel compared to the 166 rear wheel. I'm not certain but there might not be any need to use spacers for the rear wheel in question. The tire size he should run is 275/30/19 with a possibility of 285/30/19.

One other thing to note, most aftermarket 19" wheels with lip look like they're 18" wheels. It's going to look small on a e60.

izzy34

Hi vegastrashed,

Thanks for welcomming me, :-) , let me clear what i got, i guess, even it is a small difference, i have 19X8.5ET15 and 19X10.5 ET30 (not 32),
so i know that 8.5 ET15 is fine, per your post it seems 19X10.5 ET30 will be fine without using any spacers and wheels will be 245 35 for front and 275 or 285 30 for rear, am i missing anything?

Thanks...

vegastrashed

I'm pretty certain you're not going to need spacers with the width and offset of the wheel you're looking at. To avoid any issues, just get the 275/30/19 size. 285/30/19 is cutting it too close.

C's Bimmer

LOL! Hey Izzy - Don't listen to me. Listen to VT. He knows his stuff well. Sorry for the confusion.

But you should still use the wheel offset calculator. It helps.

izzy34

Thanks for the answer,

It seems we have a solution as;

19X8.5 ET 15 with 245 35 19 wheels
19x10.5 ET30 with 275 30 19 wheels

with NO fender rolling and NO rubbing issues...

Thanks again for your and cmansbimmer comments, any contributing posts are more than welcomed as well...

rsyed

this is a very daring comment to make which can lead one to buy wrong tires

the offset alone does not make a difference to how far out the wheel looks like - the real difference is a combination of offset and width of wheel. izzy34 was talking about a wheel with a width of 10,5", and cmansbimmer was talking about m5 wheels that have a width of 9,5". eventhough they roughly have the same offset (m5 have an offset of 28), the wheels that izzy34 are talking about will stick out by nearly a cm more than the m5 wheel at the back. Here is my calculation:

10,5 wheels: (10,5/2)*2,54-(30/10) = 10,335 cm
m5 wheels: (9,5/2)*2,54-(28/10) = 9,265 cm

i am first taking center point of the alloy (ie. width/2) -> converting it to cm (multiply by 2,54), then subtracting the offset (divide offset by 10 to convert from mm to cm) from that.

This number tells you that the furthest part of the wheel is 9,265 and 10,335 cm away from the mounting point.

To give you an example of my car - i have 9,5 in the rear with offset 17. on top of that i have 3mm spacers. This is how it looks like:
http://www.syed.at/e60/rear.jpg

from my above calculation, it is
(9,5/2)*2,54-((17-3)/10) = 10,665 cm

so from that point of view, your 10,5 wheel would be 3 mm further to the inside than my 9,5 wheel.

Now with that in mind, what could be a problem is the rubbing inside - your 10,5 wheels will need 2,8 cm more space inside than my wheels. i can not tell you now whether there is sufficient space. You could reduce the space requirements by adding spacers, say 3 or 4 mm spacers, but you still will need about 2,4 - 2,5 cm more space in the inside than the standard e60 19" alloys such as the m5 166, m6 167 or the 128, 172, which are all 9,5".

btw the front on mine look like this:
http://www.syed.at/e60/front.jpg

this is 8,5 with offset 12
(8,5/2)*2,54-(12/10)=9,595
compare that to yours:
(8,5/2)*2,54-(15/10)=9,295

results in your wheels 3mm to be more inside than mine - ie. mine stick out more by 3 mm.

I hope this was of help.

cheers rumman

vegastrashed

I did use the 1010tires.com calculator to confirm that he won't need spacers for the rear wheels. Once he has the rear wheels on it's going to look identical to my rear wheel configuration. I had to use 12mm spacers to get my flush appearance. He won't.