2018 CAMPAGNOLO CHORUS 11S ULTRA-TORQUE CARBON CRANKSET

The CAMPAGNOLO 2015 CHORUS crank set uses an innovative asymmetrical, full carbon, 4-hole design. A 112 mm bcd for the small chainring and a 145 mm bcd for the large help to keep each one as stiff as possible. Campagnolo's high precision steel bearings have provided smooth spinning drivetrains for decades and have an extremely low rollingresistance. Chainring pin optimization allows for faster and more precise shifting in all conditions. Thanks to the new gear design, there are now two diametrically opposed sectors specialized for upshifting, and two for downshifting. The darker color of the gears is the result of a hard anodization which increases the wear and corrosion resistance of the chainrings. Campagnolo's Ultra-Torque system uses two semi-axles, constructed from stainless steel, that lock together in the center of the BB with engaging teeth where they are fully merged with an internal bolt.

unidirectional carbon crank arms
chainrings with hard anodization treatment
8 shifting pins on the large chainring
axle Ultra-Torque
bearings Campagnolo high precision steel
requires Ultra-Torque BB cups
advertised weight 683 g
made in Italy