Steering Wheel Vibration while braking

ChrisSlicks

Yes, has happened to me. It is the downside of a fixed caliper, if one of the pistons on one side is not applying even pressure equal to the opposite side then it is pushing the rotor out of alignment. It happens to me at the track periodically but I just re-bleed and I'm good.

The other cause of out of round is uneven pad deposits, usually from a heavy track session with crappy pads.

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ResIpsa

Warped brake rotors are probably the single most improperly diagnosed problems on any car today.

I regularly track my car and speak with other drivers and I have never met anyone who “warped” their rotors.

I have experienced terrible vibrations both on and off the track and it has never been the result of “warped” rotors. Usually, it is improper brake in or just crappy pads. Unless you have an actual imbalance in your wheel and brake set up (entirely possible) then you have uneven pad transfer.

Read this link StopTech : Balanced Brake Upgrades .
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