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[dpilat8588]

I am running the 220M wheels. Front tires are 245/35. Can someone recommend the best size spacer based on that tire size?

Rear tires are 285/35. Are those too wide to run spacers?

[DrFerry]

Originally Posted by dpilat8588

I am running the 220M wheels. Front tires are 245/35. Can someone recommend the best size spacer based on that tire size? Rear tires are 285/35. Are those too wide to run spacers?

The rear 285 is definitely a bit "pinched" (too wide) on the 9.5 inch wide rear. Here are the specs for the 220M wheels.

http://www.bmwstylewheels.com/bmw/220

and as seen in the image below.

Safe bet would be 12mm spacers up front and 15mm spacers in the rear. I believe APEX may have some more information on the topic.

https://www.apexraceparts.com/accessories/spacers.html

A more aggressive and closer clearance set-up (option) would be to use 15mm spacers up front and 18mm spacers on the rear axle. Always ensure the spacers you purchase are hub centric and not stud centric to avoid high speed vibrations. Spacers move the outside edge of the tire and rim assembly outward by an amount equal to the width of the spacer. As described here:

https://www.m3post.com/forums/showpo...&postcount=101

NOTE: You'll need longer wheel bolts or a stud conversion kit too.
.
THREAD = "Everything You Ever Wanted To Know About Spacers"
https://www.m3post.com/forums/showth...hlight=spacers

[leftfootbr8king]

15 front 12 rear, not the other way around. Most likely you'll have more camber up front than in back, and 15f 12r won't rub if you're on lowering springs/under cornering.

[dpilat8588]

Originally Posted by leftfootbr8king

15 front 12 rear, not the other way around. Most likely you'll have more camber up front than in back, and 15f 12r won't rub if you're on lowering springs/under cornering.

So I won’t get any rub running a 12mm spacer in the rear with a 285/35 tire?

[leftfootbr8king]

Originally Posted by dpilat8588

So I won't get any rub running a 12mm spacer in the rear with a 285/35 tire?

Well that would depend entirely on ride height and camber. And I have no idea what your set up is so I can't say, but if you just have mild lowering and 220m wheels with a 12mm spacer, no, you shouldn't rub in the back.

[dpilat8588]

Originally Posted by leftfootbr8king

Well that would depend entirely on ride height and camber. And I have no idea what your set up is so I can't say, but if you just have mild lowering and 220m wheels with a 12mm spacer, no, you shouldn't rub in the back.

My suspension and ride height is 100% stock