The Campagnolo Chorus drivetrain represents the perfect solution for the sophisticated cyclist searching for Super Record performance at a more competitive price. Fitting a Campagnolo drivetrain to their bike has always been the ambition of many keen cyclists. Introduction of the new mechanical groupsets and the resulting incredible technical-performance and aesthetic innovation only serve to increase this desire. The new Chorus groupset is the optimum choice for those wanting the best results that a mechanical groupset can offer, combined with appeal and Italian design at the best price possible. Ultra-Torque axle New chainrings Differentiated number of pins depending on the chainring combination Hollow crank and spider arms with Ultra-Hollow Technology Double standardized bolt circle diameter on all combinations