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[Kgolf31]

All,

I'm going to start my build towards SCCA STX for a 2012 128i w/M Sport Package (not like the M Sport does anything).

I'm going to be running TCKline DA Shocks with probably around -3* to -3.5* upfront and maybe -2* in the rear. Gotta check on camber settings.

Anyways, I ideally want to run around a 17x8.5 wheel squared

I was thinking a 255/40/17 tire would be the best. Most likely it will be a ZII tire or RS3.

However, I'm not completely knowledgeable on max tires that I can squeeze under the front and rear wheel wells.

Ideally, I would like a 17x9 wheel with a 255 tire...will I be okay or would I have to go to 245?

Here is the wheel that will be mounted:

http://www.apexraceparts.com/ARC-8-17x9-Wheel_p_17.html

Specifications:

Diameter: 17"
Width: 9"
Offset: 42mm
Lug Pattern: 5x120mm
Centerbore: 72.6mm
Weight: 17.4lbs~

or 17x8.5

http://www.apexraceparts.com/ARC-8-1...eel_p_106.html

Specifications:

Diameter: 17"
Width: 8.5"
Offset: 40mm
Lug Pattern: 5x120mm
Centerbore: 72.6mm
Weight: 17lbs~

So, thoughts? I'm concerned of course mainly about shock clearance, proper offset and rubbing against the wheel well.

Thanks in advance!

[Stohlen]

255 will fit if you get the right offset. I run a 245/40 up front on 18s, and I could easily get 255s under without rubbing.

[Hops128i]

Originally Posted by Kgolf31

Anyways, I ideally want to run around a 17x8.5 wheel squared
I was thinking a 255/40/17 tire would be the best. Most likely it will be a ZII tire or RS3.

I'm heading down a similar path, I too am going to STX this season and want a 245/40/17 square, thinking Rivals, RS3, or ZII

Have you thought about the bfg rivals?

[pj.rodriguez]

David at Apex should be able to chime in any moment now.

[Kgolf31]

Originally Posted by Hops128i

I'm heading down a similar path, I too am going to STX this season and want a 245/40/17 square, thinking Rivals, RS3, or ZII

Have you thought about the bfg rivals?

Haven't ran on BFG Rivals.

From others though that I ran against, they are picky with their pressures. They like to run mid-20 PSI on autocross.

People love them, or hate them...really no inbetween.

I want to either go 245 on the RS3s, or 255 with the ZIIs. I want to get ZIIs and get the tire on a 17x9 wheel, if possible.