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It really depends on your suspension setup and your wheel widths (therefore your tire widths). If you're stock, you can go to town on offset/spacers. If you're lowered with H&R/Eibach/Vogtland/Megan/etc, then you need to be a bit more careful with final offset. If you're slammed on coilovers, forget it. On a 8.5" wheel with 235s, ET35-36 is as far as you can go. You will rub the outer fender with anything more than that. With 8" wheel and 225 tires, you can go a little lower but you lose a bit of ride comfort.
 

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It really depends on your suspension setup and your wheel widths (therefore your tire widths). If you're stock, you can go to town on offset/spacers. If you're lowered with H&R/Eibach/Vogtland/Megan/etc, then you need to be a bit more careful with final offset. If you're slammed on coilovers, forget it. On a 8.5" wheel with 235s, ET35-36 is as far as you can go. You will rub the outer fender with anything more than that. With 8" wheel and 225 tires, you can go a little lower but you lose a bit of ride comfort.
I do want to share my own experiences with an 8.5" wheel and 235 tires. My final offset of 31 in these pictures has absolutely zero rubbing issues with my Koni/Vogtland suspension setup.



My last summer setup had an 8.5" wheel (albeit with 225 tires) but a final offset of 26 in the front, and a 9.5" wheel (again with 225's) and final offset of 28 in the back, again with no rubbing at all. That's as far as I would push it though, and i believe the only way I managed it was because of the skinnier tires. I've since sold these wheels, as I think they were poking a bit farther than I would have liked, which is why I'm partial to a final et of 30 for an 8.5".

 

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I agree with you. With Vogtlands, that setup is not a problem. Slammed on coilovers, the car wouldn't even roll forward.
 

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Hi guys new to the Saab forum in the market for some new tyres I have my eyes on the bf Goodrich comp2 225/45/17r looking to stretch the tyres but I'm not sure what would be a good look on my 2005 Saab 93 ARC I'm thinking a set of 17x8or 8.5 or 8 even 9 not sure with the whole deal just looking for some input if anyone has done stretched on the 9-3 and what offsets should I be looking out for
 

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My last summer setup had an 8.5" wheel (albeit with 225 tires) but a final offset of 26 in the front, and a 9.5" wheel (again with 225's) and final offset of 28 in the back, again with no rubbing at all. That's as far as I would push it though, and i believe the only way I managed it was because of the skinnier tires. I've since sold these wheels, as I think they were poking a bit farther than I would have liked, which is why I'm partial to a final et of 30 for an 8.5".
Hi, what's the name of the wheels in the 2nd picture? Looking great! ;ol;
 

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Hey guys I did a little digging but I don't understand wheels at all. I was wondering If I could run an 18x8.5" wheel that feels fairly stock or maybe slightly better handling. I know this is also dependent on tires. I see that the ET will probably be around 35 although I don't know what that means. I'm really just looking to get wheels and tires that are lighter than the stock 22lbs I have and that look better but not change too much.
 

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Hey guys I did a little digging but I don't understand wheels at all. I was wondering If I could run an 18x8.5" wheel that feels fairly stock or maybe slightly better handling. I know this is also dependent on tires. I see that the ET will probably be around 35 although I don't know what that means. I'm really just looking to get wheels and tires that are lighter than the stock 22lbs I have and that look better but not change too much.
Which wheel are you looking at?
 

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Haven't totally decided yet. I'm looking for lightweight 18's. I definitely think I want to rock a tire 235/35-40/R18. I just see that most wheels I've been looking at only offer 17x8s or 18x8.5. I'm willing to go narrower on an 18 inch rim. I just noticed that 18x8.5 is fairly standard and wanted to make sure if I found something it would play
 

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Haven't totally decided yet. I'm looking for lightweight 18's. I definitely think I want to rock a tire 235/35-40/R18. I just see that most wheels I've been looking at only offer 17x8s or 18x8.5. I'm willing to go narrower on an 18 inch rim. I just noticed that 18x8.5 is fairly standard and wanted to make sure if I found something it would play
You're going to want 235/40 on an 18 inch wheel. 35 is too thin for proper diameter. If your goal is lightweight then you should look into OZ wheels.
 

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Thanks for the suggestion! I'll stick with 235/40s and check out OZ. I found Pilot sport 4S tires that are perfect for my budget so now I'm definitely looking for 18x8.5
 
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