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      02-26-2020, 03:35 PM   #1
be4life182
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What tire size to go to from 265/40R18

So the title kind of explains it. I love the fitment I currently have, it is an aggressive track look vs whatever. The problem is the tire size is not common and I am unhappy with my options.

If I switch to 265/35 will is look too low profile?

Could I switch to 275/35 or would it rub a lot?

Current wheels are Arc 8 18x10 +25. Current tires are Hankook RS-3.
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      02-26-2020, 06:49 PM   #2
Expert@ApexRaceParts
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We generally recommend running 275/35-18 tires with this wheel setup. These tires should be a direct fit with no rubbing.

Your wheels look great!

Here are some shots of an e92 M3 running the 275 setup on 18x10 ET25 EC-7s:







This customer is running 7mm spacers up front and 12mm in the rear so you should have a bit more fender clearance if you are running without spacers. The tires pictured here are 275/35-18 NT01s.

-Tom
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      02-29-2020, 09:08 PM   #3
be4life182
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Thanks!
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      03-05-2020, 12:28 PM   #4
s0ldats
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Quote:
Originally Posted by Expert@ApexRaceParts View Post

This customer is running 7mm spacers up front and 12mm in the rear so you should have a bit more fender clearance if you are running without spacers. The tires pictured here are 275/35-18 NT01s.

-Tom
are the 7mm front spacers made by apex? can't seem to find them on your site
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      03-05-2020, 12:43 PM   #5
pbonsalb
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For 7mm, I would use hub extenders.
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      03-05-2020, 05:41 PM   #6
ApexRaceParts
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Quote:
Originally Posted by s0ldats View Post
are the 7mm front spacers made by apex? can't seem to find them on your site
This car was not running our spacers. We don't sell 6-10mm spacers as spacers this size can potentially cause vibration issues stemming from the reduced mounting area of the hub ring.

The 18x10 ET25 with 275/35-18 tires is a direct bolt-on for the e9X chassis so we would recommend that anyone wanting to try this setup install the wheels and tires first before adding spacers. In this case, the spacers were purely an aesthetic choice and required a slight increase in negative camber (-2 degrees total front and rear).

Thanks
-Tom
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      03-06-2020, 06:55 AM   #7
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Use hub extenders and spacer rings for 7mm. An integrated extender spacer under 10mm is not strong enough to support the extender. 12mm is safer than 10mm. Just putting a 7mm spacer on the hub with no extender leaves insufficient hub as noted above.
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