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Old 09-06-2012, 09:12 PM   #40
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Join Date: Jun 2009
Location: such united many state
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Originally Posted by tomoyer View Post
From the photos you posted, your rotors are worn and most likely warped/have excessive run-out
For the record, warped rotors are a relatively rare condition that can really only occur in the following conditions:

1. Very hot rotors and suddenly going through a very deep puddle

2. Bent wheels, and the rotor eventually conforming to the wheel wobble from heat

Most brake vibration comes from hot spots and excessive pad buildup in one location. When you get cementite on your brake rotors, it's near impossible to remove without simply shaving off a layer of the rotor.

The best way to prevent wheel vibrations is to not brake too hard, and if you do brake hard, do not hold the brakes at a complete stop. You'd need to go get some good heat buildup for this to happen, and I'd argue that you're more likely to get that problem in mountainous areas...or if you drive like a complete asshat all the time
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