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      05-04-2010, 02:26 AM   #1
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HELP!!!: Do I Have the Right Offsets?


I was wondering if the wheel I just ordered has the right offsets to fit my 135i. I ordered as follows: 18x8 (5-120) OFFSET @ 38 for the front/ 18x9 (5-120) OFFSET @42 for the rear. The guy at my local wheel shop said I shouldn't have any problems with this setup, but I figured those more familar with our cars or who know from personal experience could enlighten and or put me at ease. I also used the wheel offset calculator and from the inside cleareances its says I should be fine by 5 and 4 mm front to rear respectively , but also says for the outside clearances it says to extend by 17 and 16 mm front and rear respectively. What does it mean to extend the outside clearance by that much? Would a spacer work, if so how much for both the front and rear? In addition for the rear wheels I could bump up the rear's offset to 45, but it says for the inside that I only have 1 mm inside clearance and 13 mm outside clearance. This is the following site to the calculator: www.1010tires.com.WheelOffsetCalculator.asp and I based it off these numbers: Fronts-7.5 width and 49 offset/Rears-8.5 width and 52 offset. Please any advice, comments, or knowledge would be greatly appreciated. Thanks in advance to all my fellow 1Addicts.

PS-I am including pics of the wheels in question (ones in pics are 17" though), they are Kyowa Racing Evolves. Never heard of them before, honestly can't even tell you where they are from, how they are made or the weight of them, but I fell in love with the design and were reasonably priced and after reading reviews on other forums for those who had them fitted, no bad rep so far. Here is also the link to the website-> www.kyowadesigns.com/view-wheel/evolve-flat-black-with-red-stripe
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      05-04-2010, 08:06 AM   #2
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What tires were you hoping to fit?You'll be okay with 225's up front, but in the rear, 245's might be all you can get with that fitment (or 255s if the brand of tire runs narrow).
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      05-04-2010, 09:22 AM   #3
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Those will be unique for our cars. They look alot like a BBS.

You use spacers to move your wheels further out towards the fenders. These will already be too far out and close to rubbing both front and rear. Many of us have similar fitting wheels though so you can make it work if you are careful.

As Larry mentioned keep the tires small. If you rub a little you may have to get your fenders rolled or add some camber to tilt the wheels inside so they won't rub.
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      05-04-2010, 09:43 AM   #4
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Nice looking wheels. Will be interested to see what they look like on the car,

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      05-04-2010, 09:52 AM   #5
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roll your fenders, get spacers up front and maybe back. you only need like 2-5mm spacers. You can fit 225 and 255 max after rolling. what will you be dropped on?
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      05-04-2010, 10:11 AM   #6
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Quote:
Originally Posted by jzhang View Post
roll your fenders, get spacers up front and maybe back. you only need like 2-5mm spacers. You can fit 225 and 255 max after rolling. what will you be dropped on?
Mind answering why you would suggest somebody roll fenders AND use spacers to fit 225/255 fitment? That makes no sense to me.
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      05-04-2010, 10:15 AM   #7
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Quote:
Mind answering why you would suggest somebody roll fenders AND use spacer
That's, like, so you can get the ultra wide stance man!

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Last edited by ianc; 05-04-2010 at 11:03 AM..
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      05-04-2010, 10:19 AM   #8
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Right now I am running Continental Extreme Contact DW tires that are 225/40/18 in front on stock wheels, and 255/35/18 on the rears. They look pretty narrow to me at the moment, not sure what the larger width will do. I don't have a drop yet, still running on stock sport suspension. I am going to have to call the wheel shop and possibly cancel the order, I had a hunch that our offsets were high, but iuntil I checked later on last night I was surprised they were that high. Damn our unusually high offsets, lol. I guess it was too good to be true. I might roll my fenders, guess I should start looking for a suspension kit now, what do you guys suggest, nothing too extreme, I don't want to spend more than $1,500, as the wheels plus their future installation and balancing are going to set me back $1,400.
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      05-04-2010, 10:30 AM   #9
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Quote:
Originally Posted by ianc View Post
That's, like, so you can get the ultra wide stance man!

ianc

Then I think you answered a question that wasn't asked.
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      05-04-2010, 10:40 AM   #10
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Thanks Larryn. Do you think I will need to roll my fenders, if so do you think it would be a mild roll or very aggressive?
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      05-04-2010, 10:50 AM   #11
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Quote:
Originally Posted by Novator View Post
Thanks Larryn. Do you think I will need to roll my fenders, if so do you think it would be a mild roll or very aggressive?
With those wheels and those tires... I don't think you'll need rolling. Rears will be close though. Fronts not an issue.
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      05-04-2010, 11:04 AM   #12
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Then I think you answered a question that wasn't asked.
Ha, my clipboard was full of the wrong data. Fixed...
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      05-04-2010, 11:39 AM   #13
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My rear setup is 18x9 et40 with yoko s.drive 245/35. I use the same offset calculator and mine extends out 18mm.
They rub fender over bumps at speed.

Rolling fender is my last option.
Therefore, I'm going with more neg. camber and firm up the suspension to reduce the rubbing.

Hopefully, this will work... if not, I may go with 18x8 square setup to end all the troubles.

P.S. Even with your local wheel shop stated you wouldn't have problem, use your best judgment. Because once you mount the tires and wheels, they can't be returned. Unless he guarantees it.

Last edited by gan08; 05-04-2010 at 11:51 AM..
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      05-04-2010, 01:18 PM   #14
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Quote:
Originally Posted by larryn View Post
Mind answering why you would suggest somebody roll fenders AND use spacers to fit 225/255 fitment? That makes no sense to me.
isnt the front going to be too close to the struts or whatever? with an et of 38. That's why i suggested spacers to push them out a little to clear the inside and then a roll to clear the outside fender. sorry if i've been misleading... i'm only learning as much as i'm reading.

plus I like the poke/stance
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      05-04-2010, 02:56 PM   #15
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Quote:
Originally Posted by jzhang View Post
roll your fenders, get spacers up front and maybe back. you only need like 2-5mm spacers. You can fit 225 and 255 max after rolling. what will you be dropped on?
Why put spacers onto this setup? It's already too aggressive to fit properly without some stretch front and rear.

255's are going to have occasional rubbing even with a rear roll.

Guy at the shop simply gave the customer a poor fitment recommendation as he didn't know what works on the 1 series, or assume the customer is willing to run undersized tires and roll fenders just to make it fit ok (but not ideal)
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      05-04-2010, 02:59 PM   #16
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Quote:
Originally Posted by jzhang View Post
isnt the front going to be too close to the struts or whatever? with an et of 38. That's why i suggested spacers to push them out a little to clear the inside and then a roll to clear the outside fender. sorry if i've been misleading... i'm only learning as much as i'm reading.

plus I like the poke/stance
NO,

It won't be too close to the strut. Actually it will be very far from the strut. The wheel could have an offset 10mm less and it still wouldn't touch the strut with a 225 tire.

It's great that you're learning, but you chime in right away into a lot of these threads with inaccurate information. You should hold off to give advice until you really know the answer.
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      05-04-2010, 04:16 PM   #17
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Quote:
Originally Posted by paintpro21 View Post
NO,

It won't be too close to the strut. Actually it will be very far from the strut. The wheel could have an offset 10mm less and it still wouldn't touch the strut with a 225 tire.

It's great that you're learning, but you chime in right away into a lot of these threads with inaccurate information. You should hold off to give advice until you really know the answer.
dam man LOL!!! sorry dude. what did I ever do to offend you? I know you're a wheel guy and all. I'm just a normal guy and all. If you ever gave misleading info in a photography section I wouldn't even approach you in the same manner as you have to me. But whatever, don't mind my posts then. I'm just here to learn like everyone else here.

anyway op, sorry for sh!ting in your thread.
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      05-04-2010, 04:32 PM   #18
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Thanks you guys, I called the shop again and reassured me that I shouldn't have any rubbing issues with this wheel and I received an e-mail from the manufacturer stating the same. These are cast wheels, you guys already figured that out and they weigh 22 lbs. for the 18x8 and 18x9. Do you think for the rears I'd be safer with ET45 instead of ET42 which is how the order for the rears are now? Thanks again guys.
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      05-04-2010, 04:54 PM   #19
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sorry dude. what did I ever do to offend you?
Nothing I assume, but people post here looking for (correct) answers to questions.

If you don't know for certain then don't post, or if you must, then explain that you're not sure. Suppose this fellow had ordered up a set of 2 & 5 mm spacers in response to your answer?

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      05-04-2010, 06:44 PM   #20
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you would be fine, its not all that aggressive at all. maybe a minor roll in the rear if you dont wanna run too much camber. just stick to tire brands that run narrow, a 225/255 combo should work just fine. I think they will look great, mildly aggressive and not a very common wheels. have you asked the weights? they look heavy


Quote:
Originally Posted by jzhang View Post
isnt the front going to be too close to the struts or whatever? with an et of 38. That's why i suggested spacers to push them out a little to clear the inside and then a roll to clear the outside fender. sorry if i've been misleading... i'm only learning as much as i'm reading.

plus I like the poke/stance
not really, actually you gain clearance by about 4mm. because the rim is only a 1/2 inch wider than the stocker, and you are pushing the wheel 16mm to the outside w/ that offset, well a 1/2 inch is only 12.7mm so you only have so much wheel to work w/

a small spacer of 3-5mm would look very nice though
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      05-04-2010, 06:48 PM   #21
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Novator, rear et45 will be better than 42 if you don't want to rub the fender. Et50 would be even better. With those Continental tires I think you'll occasionally rub on the stock suspension but you'll have to go with a smaller tire and probably a mild fender roll if you lower your suspension much at all.

I'm interested to see how these will look on your BSM 135!
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      05-04-2010, 07:07 PM   #22
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Quote:
Originally Posted by Novator View Post
Thanks you guys, I called the shop again and reassured me that I shouldn't have any rubbing issues with this wheel and I received an e-mail from the manufacturer stating the same.
I hope they assured you because they have experience with those wheels (and your tire of choice) mounted on a 1-series. Otherwise they're just trying to sell you some gear...

Personally, I'd be very cautious with running offsets that low, but that's just me.
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