
Originally Posted by
Dsobczak
Hello, I an running ECS 10mm spacers and I am now noticing that I have vibration when braking anywhere over 45MPH....
Are your spacers hub centric and match your hub's specs? Do your aftermarket wheels have the same hub diameter or a hub adapter ring?

Originally Posted by
East_Coast_S4
Save yourself the headache and just get off the spacers.
Spacers are a bandaid to fix incorrectly fit wheels.
Spacers can work when properly applied. Some cars, like Porsche, have used OEM spacers. The issues are usually improper/unsafe fitment and not using hub centric spacers. This happens with aftermarket wheel fitments too. I do agree that a spacer is one more thing to get wrong and people do screw up a lot. I also agree that you should use a properly fit hub centric aftermarket wheel wherever possible without the use of spacers or hub rings that can be added points of failure.
Sometimes getting a wheel fitment that does what you need without a spacer is impossible. For example I have a supercharged mustang track toy that needs to run square wheels for tire rotation purposes. It also needed the rears to be wide which in a square setup meant trying to fit 315s in the front. Without a spacer, camber plates, coil overs, and long wheel studs there's no great way of doing that. That is an extreme example of course.
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