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Old 07-28-2005, 03:16 AM   #1
Smurflogik
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Default miata kosei k1's

ok im in a bit of a situation and i need some help. I have a set of kosei k1's from a miata. they have a 38mm offset which i realize will not fit on my '88 325is. my question is: if i get a spacer will i able to run these wheels? i heard that the center bore could possibly be too small. does anybody know about this?
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Old 07-28-2005, 09:52 AM   #2
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Default Re: miata kosei k1's

Quote:
Originally Posted by Smurflogik
ok im in a bit of a situation and i need some help. I have a set of kosei k1's from a miata. they have a 38mm offset which i realize will not fit on my '88 325is. my question is: if i get a spacer will i able to run these wheels? i heard that the center bore could possibly be too small. does anybody know about this?
Just hold one up to your hub to see if the center bore is correct.. I'd think it would be to small.. Then you will know.
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Old 07-28-2005, 10:04 AM   #3
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the mazda center bore is much samller than the bmw. I forget the actual sizes but mazda is the smallest 4x100 center bore followed by honda/toyota, and vw/bmw are the biggest.

I believe the kosei's use a centering ring though. Pop out the ring, and the natural bore of the rim will fit the e30 hub.
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Old 07-28-2005, 12:36 PM   #4
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You could email Tire Rack and ask them aswell
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Old 07-28-2005, 06:31 PM   #5
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bmw is 57.1mm, miata is 54.1mm if i'm not mistaken
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Old 07-28-2005, 09:41 PM   #6
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Koseis have a huge centerbore. What TireRack and other companies do is provide you with plastic ring adaptors that make up for that difference. There's a specific one for each car obviously.
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Old 07-29-2005, 12:48 AM   #7
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what size are they? I've used 38mm before. Shoot, I've used 42mm.
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Old 07-29-2005, 04:33 AM   #8
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they are 15X7 with a 4X100 bolt pattern. im going to try them with a friends hubcentric spacer tomorrow to see if that will work. other wise im just going to have to sell them off and wait till tirerack has the 4x100 kosei's for the e30 for sale again.
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Old 07-29-2005, 12:02 PM   #9
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Quote:
Originally Posted by Smurflogik
they are 15X7 with a 4X100 bolt pattern. im going to try them with a friends hubcentric spacer tomorrow to see if that will work. other wise im just going to have to sell them off and wait till tirerack has the 4x100 kosei's for the e30 for sale again.
I think you missed the point. All 4x100 Koseis that aren't custom drilled are built the same (excluding offset), you just need new centering rings from Tirerack (and they only cost a few dollars).
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