Wheel/tyre advice needed

the stripler · Post by **the stripler** » Thu Oct 04, 2018 7:56 pm

Just bought a set of wheels and tyres off forum member. First time upgrading to 19s so need advice.
The fronts are 8.5j et35 with 225 35 19 hankook evo s1 tyres on around 5mm

The rears are 9.5j et38 with 265 30 19 Roadstone n8000 with around 6mm of tread all over.

Will these fit straight on with no issues or will adjustments be neccesary.
Car is 2.5si and i currently have 18s on with spacers on rear.
Will the car sit the same or am i gonna have to lower it, so it doesnt look silly? Prefer not to lower it if im honest. And will tracking need redone.

Any advice appreciated

Gazza51 · Post by **Gazza51** » Thu Oct 04, 2018 8:18 pm

I’ve been informed the standard sizes fitted are -

8j et 47 front
8.5j et 50 rear on non M

If you use ,https://www.willtheyfit.com you can compare old and new sizes

You need to consider the ‘poke’ and ‘inset’

Mr Tidy · Post by **Mr Tidy** » Thu Oct 04, 2018 8:20 pm

Gazza51 wrote: ↑Thu Oct 04, 2018 8:18 pm I’ve been informed the standard sizes fitted are -

8j et 47 front
8.5j et 50 rear on non M

If you use ,https://www.willtheyfit.com you can compare old and new sizes

Yes, but they are 18s so using that link is probably a good plan.

the stripler · Post by **the stripler** » Thu Oct 04, 2018 8:27 pm

Sorry guys im confused even more..
Can anyone explain it in simple terms

Gazza51 · Post by **Gazza51** » Thu Oct 04, 2018 8:32 pm

Go to the website mentioned

Enter you existing tyre and wheel size

Enter the new tyre and wheel size

Hit calculate

The results will be shown on the left and a description below that.

LittleZ4 · Post by **LittleZ4** » Thu Oct 04, 2018 8:36 pm

As above!!

If you're struggling, what size are your current tyres?

the stripler · Post by **the stripler** » Thu Oct 04, 2018 8:42 pm

just tried it, just don't know the ET sizes etc. All I know is when I bought them they were staggered

LittleZ4 · Post by **LittleZ4** » Thu Oct 04, 2018 8:46 pm

Try using the ET's mentioned above.

Gazza51 · Post by **Gazza51** » Thu Oct 04, 2018 8:46 pm

I found the for sale thread for the wheels which includes pictures, he says they fit nicely on a Z4 Coupe.

viewtopic.php?f=7&t=109552

Mr Tidy · Post by **Mr Tidy** » Thu Oct 04, 2018 8:49 pm

OK OP, here are the results.

For your fronts:- https://www.willtheyfit.com/index.php?w ... offset2=35

For your rears:- https://www.willtheyfit.com/index.php?w ... offset2=38

So it looks like your new wheels will clear the suspension OK, but will sit a lot further out than OEM wheels. (18.4 mm on the front and 24.7mm on the rear).

the stripler · Post by **the stripler** » Thu Oct 04, 2018 8:52 pm

Thanks mrtidy
So im guessing thats an acceptable difference?.
Either way i think the pictures look great.

Mr Tidy · Post by **Mr Tidy** » Thu Oct 04, 2018 8:56 pm

Yes, I just found the Sale thread!

If they fit an E86 they'll fit and E85 - and look great too!

the stripler · Post by **the stripler** » Thu Oct 04, 2018 8:58 pm

Cheers m8

Steve84N · Post by **Steve84N** » Fri Oct 05, 2018 3:44 am

Those offsets will stick out by around 5mm too much.

Definitely rubbing territory unless you're running high suspension and don't corner aggressively.

the stripler · Post by **the stripler** » Fri Oct 12, 2018 11:45 pm

Well, wheels are on and look great.
In the end they sit flush with the arches. Not sitting out or in......perfect

Z4-forum.com

Z4-forum.com