Wheel Spacers 101

Originally Posted by synolimit

What's the point of a hub centric spacer if the wheel is larger? I know hub centric is for a tight fit. For example the rotor is about 65.9mm outter diameter and the wheel is about 66mm inner diameter. Obviously the wheel fits nice at tight. Aftermarket hub centric spacers seem to come 66.10mm inner diameter to fit over the rotor and I'm sure 65.9mm to fit the factory wheel again for a nice tight fit.

But if your aftermarket wheels are say 73mm bore then whats the point of having a hub centric spacer? The spacer is no longer making contact with the wheel. Why not just run a normal flat spacer at that point since the wheels only being held on by the lug nuts anyways.

Originally Posted by 370ZZZZZTuner

Is the increase in negative camber from adding spacers enough to dramatically increase tire wear? Im debating if its worth getting an alignment done. I do like the more aggressive look however.