The ergonomics on the Shimano Dura-Ace ST-R9270 dual control levers bring new levels comfort and control to road cycling. With fast wireless shifting and precise brake modulation, Dura-Ace redefines performance. The Dura-Ace BR-R9270 hydraulic 2-piston calipers are sleek and compact. Mono-body construction ensures light weight and rigidity, proving that good things can come in small packages.