Red brake calipers take their inspiration from the "skeletonized" dual-pivot design of Force. SRAM does extensive machining to Red to make them over 10% lighter than Dura-Ace, and to save you an added 10g in comparison to Force. They're ungodly light by production standards, with two nice upsides: (1) Their lightness doesn't cause them to flex in the least. Your braking power will be stout. (2) They're easy to set up, and they offer plenty of adjustability -- both in terms of spring tension and the ease with which you can center them.

With Red the combination of a dual-pivot design and a stout return spring gives you dynamic braking. Trying to avoid the final corner pile-up at your local crit? Red provides superb hard-stopping power. Trying to pick the best line through a hairpin on a descent? Red provides nuanced "speed control" modulation. Red calipers are built with a new generation of high-precision bearings to give you right feel for the right situation. And not only do these bearings give Red a lighter, more feathery action than Force, but it makes them more weather-proof.