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Re: Floating rotors ??? (archive)
[ Follow Ups ] [ 8-series (E31) Message Board ] [ Msg. Board FAQ ]
Posted by CarlT on May 08, 2000 at 08:30:40:

In Reply to: Floating rotors ??? posted by Lez on May 07, 2000 at 21:09:24:

Next time you walk by a newer sportsbike, take a look at the front rotors. You will notice that the rotors are bolted onto the hub through bushings instead of being on solid piece. This gives the rotor the freedom of expanding and contracting (hence the name floating) under extreme heat without warping as a solid/normal rotor would.

Floating rotors are normally not needed, but come in handy on a racetrack. BMW had this as a part of their Nurburgring suspension option for the M5/M3.

Most calipers are floating (I think...:) )

Carl



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