Quote:
Originally posted by Grady Clay
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I think there should be some flex in the hydraulic brake system. As each tire rotates, the grip isn’t perfectly consistent around the perimeter. The road surface isn’t perfectly consistent. The grip of the pad on the rotor isn’t perfectly consistent.
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Your foot is capable of perhaps 2-3 Hz max ...
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That's the first time I've heard anybody mention the variations in grip as the rotor goes 'round as it relates to wanting soem hydraulic give... makes sense. I'm planning on checking the runout and re-indexing the front rotors on one of my cars because of that pulsing, and the SS lines may be why it's so noticeable.
As to the 2nd snippet above, some of us drummer-types may take umbrage at that assertion
