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#1
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Rotor Warpage?
I have no experience with disc brakes, but reading THIS THREAD made me wonder:
Some discs have steel spiders attached to aluminum discs. Could this be done for heat absorption to mitigate any disc warpage from high heat braking? Anyone experience disc warpage from high heat where the discs straighten out once they cool off?
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#2
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I think you mean steel discs attached to aluminum spiders (aluminum is too soft and would get worn through quickly). Yes, many rotors have spiders and discs whose shapes and joinery (such as floating rivets) are intended to minimize warpage. And yes, I have many times experienced disc rub due warping after hard braking, with the rub disappearing after the discs have cooled.
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#3
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I experienced temporary warpage the worst with SRAM Red CLD discs. I replaced them with Shimano XT/Ultegra discs.
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