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Koxx fork & question about wavey disc rotors

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Koxx fork & question about wavey disc rotors

Old 07-27-05, 09:39 AM
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Koxx fork & question about wavey disc rotors

Right I have a question. I'm planning on buying a Koxx fork. The disc mount on the current model is basically +30mm, so with a 160 caliper, you'll need a 190mm rotor. However, I'm looking at getting the older style (pre 2004), which I think had a +20mm adapter. Can someone confirm this for me?
My second question: is there much advantage of getting a wavey rotor over a striaght one? What are the differences in performance? And can a straight rotor of a particular size be swapped for a wavey rotor of the same size? Or does the wavey one have to be a slightly smaller size to compensate for the bumps?
Many thanks
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Old 07-27-05, 05:53 PM
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The wavey rotor is a motorcycle thing. The idea was to decrease rotating mass and diameter thus reducing gyroscopic effect on Gran Prix bikes making them easier to steer at 200-330 km/h. On your mountain bike, assuming your not reaching these speeds, they should make no difference to steering, individual rotors may vary in braking effectiveness but so do non-wave type rotors. They look real cool however which is always valuable. Incidentally if you rode your bike off a cliff the maximum speed you would reach is around 200km/h which is all the aerodynamics of the human body will allow so perhaps they might make a difference then, let us know if you decide to try this out.
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