When Campagnolo introduced the Ergopower H11 Disc Brakes to the market, Campy faithfuls became ecstatic about gaining authoritative stopping force without having to swap to another manufacturer's group. In typical Campagnolo fashion, the H11 Crankset is designed to integrate seamlessly with their disc brakes, as well as their mechanical and electronic groups (except for Chorus EPS, which isn't compatible with H11 Disc Brakes). To achieve a harmonious chain line with disc-equipped wheels, Campy pushes out the H11 Cassette and Crankset by 2. 5-millimeters each to accommodate the wider spacing of 12 x 142mm rear axles. This means you'll retain an optimal chain line with wider disc wheel spacing, without disturbing the 145. 5-millimeter q-factor you've become accustomed to on the road. The crank arms are constructed from carbon fiber for the lightest weight possible and stiff power transfer when you're cranking up steep climbs and hammering away at a brisk cadence. It's available in both compact and standard chainrings for tailoring it to the terrain at hand, with a variety of crank arm lengths for dialing in an ideal set-up.