any neg effects to running spacers

[KiokenM3]

just wondering if there are any neg effects to running spacers on our cars?

[SV Concepts II]

As long as they are hubcentric and you are using the correct length lug bolts. You should be fine.

[david @ eas]

Not all spacers are created equal! Make sure you get one that is built from the ground up Properly! Macht Schnell spacers are all made from extremely tough 6061-T6 Aerospace Aluminum with chamfered edges which allows for easy installation, and removal if necessary. Spacers only really need to be hubcentric if you're running 10mm spacers or higher. Anything under that, and you'll still have enough hub on the lip of the car itself, to slide the wheel on safely.

Our spacer kits come with all the necessary bolts to get your car up and running right away, so there's no guess work, and you'll actually get a full kit. Our extended bolts are hardened and tempered to strength class 10.9 or 10 according to the DIN/ISO standard 898 that meet the statutory requirements of ALL countries, including the US.

If you want a safe spacer that a lot of the guys on the forum run, then take it to the next step and check the Macht Schnell Spacer DIY guide:

▀▄ eas | Macht Schnell Competition Wheel Spacers DIY Instructions
http://www.e90post.com/forums/showthread.php?t=332063

I hope that helps!

[Jaypod]

There is some great info about spacers in the wheel section:

http://www.m3post.com/forums/showthread.php?t=336209

[jdhiro]

That second link has some warnings about 10mm spacers...

The 10mm Spacer Dilemma
10mm wheel spacers are one of the most common spacer sizes out there. However, what a lot of people don't realize is that a 10mm size is not a true fitment on any BMW. It's considered a "tuner" fitment, meaning some extra thought is usually required to correctly install them. Only with the right combination of parts will a 10mm spacer fit without a vibration or other fitment issues.

Factory Hub Lips Are Greater Than 10mm
The depth of the lip on the car where the spacer will rest will vary. The available lip space may be 11mm and a 10mm spacer with its own hubcentric lip cannot physically fit. The spacer will bottom out on the lip instead of on the brake hat, leaving a gap between the spacer and the rotor hat. The biggest reason for this is the thickness of the rotor hat. The thickness varies by manufacturer and design. A thinner hat (such as used with aluminum Euro Floating rotors) will leave more lip protruding and make the problem worse. Most spacer manufacturers add an extra chamfer, or shoulder, to push the hubcentric lip further out. The extra chamfer clears any extra part of the stock lip. The other way to get the spacer to fit is to shave the stock lip with a metal file. While not the most elegant solution, it works.

Is that true for the E90 M3? I was thinking about 12mm front, 10mm rear. Do 10mm Macht Schnell not fit right in the rear? I've seen cars that go as low as 5mm...

[tom @ eas]

Originally Posted by JasonNW

Is that true for the E90 M3? I was thinking about 12mm front, 10mm rear. Do 10mm Macht Schnell not fit right in the rear? I've seen cars that go as low as 5mm...

The MS units are perfectly fine in the rear and have no fitment issues to date.

[Lemans_Blue_M]

In a perfect world...

We would never need to buy spacers at all, since all OEM and aftermarket wheels would be manufactured to fit every make & model of car perfectly.

But as we all know, the world we live in ain't perfect!