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What is certainly different is that brake loads from rim brakes are shared equally between the left and right sets of spokes, but disc brake loads bear more heavily on the rotor side. This makes me wonder whether the aero bike makers ought to consider two discs, as each could be smaller than a single disc, and halving the torque load on the rotor side would permit a lower spoke count.
This level of sophistication and reasoning is going to be seriously lost on @thecycleclinic given he can't even distinguish between the mechanical advantage in a braking system and the load applied to an individual spoke.
Brommers
I'm not assuming they don't, I'm just countering the frequent assertion that there's magic involved in rim-braked wheels which somehow allows braking to occur without affecting the spokes, and that by contrast everything which happens to the spokes under disc-braking is the fault of the torque applied to the hub by the rotor.
What is certainly different is that brake loads from rim brakes are shared equally between the left and right sets of spokes, but disc brake loads bear more heavily on the rotor side. This makes me wonder whether the aero bike makers ought to consider two discs, as each could be smaller than a single disc, and halving the torque load on the rotor side would permit a lower spoke count.