Originally Posted by Ritterview

Thinking? There is nothing to think about! Get a Spyre on there, and your Avid BB7 will soon be headed to the landfill.

I'm wondering whether the Spyre's dual piston action might help spare the Shimano Ice from melting. In comparison to the Avid BB7, in which the outer piston rudely pins the rotor against the fixed inner pad, the dual-piston Spyre gently squeezes the rotor from both sides. This has got to be more even pressure/friction between the outer and inner rotor surfaces, and thus more even heat production on either side of the ICE's aluminum sandwich. It might be with the Avid that one side is spiking hot temperatures that become critical, whereas the same braking with the Spyre would spread the heat more evenly on both sides, and thus be less likely to reach critical.