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  • Surely if you can blow off a tyre on a rim brake you can boil a hydro system/overheat a rotor? For heavy riders in the mountains there doesn't seem to be any brake that is immune to overload.

  • Not entirely. Horses for courses obviously, but many variables come into play. 200mm rotor and DOT fluid using brakes have a pretty high boiling point.
    Looking at a bottle of DOT 4 now and it has a dry boiling point of 269c.

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