The new Chorus DB Group comes onto the market to expand the range of innovative technological solutions offered by the 12 speed Groups. The new Chorus DB 12 speed group is launched with the specific combinations 48/32 and 11-34 and is suitable for those who like to spend many hours on mixed tracks without compromising the racing performance guaranteed by all Campagnolo groups. Traditionally, the use of different materials and therefore the low extra weight, together with a rear derailleur newly designed for larger cassettes, are the main elements that distinguish the new Chorus 12 Speed group from the Super Record 12 speed and Record 12 speed groups.
The fantastic ergonomics, which over the years has become Campagnolo's calling card, have been further improved with the recent introduction of the Super Record and Record 12-speed drive systems. The new standard, which is not only ergonomic but also individually adaptable, finds its continuation in the design of the Chorus levers. Apart from the aluminium brake lever, which has a coating that enhances the finish and feel of the contact with the hand, the Ergopower Chorus has features very similar to those of the Super Record and Record brake levers. The new design of the hand protection rubber, brake levers and larger drive system levers, as well as the reach setting, which allows the Ergopower brake lever to be individually adjusted to different hand sizes, make these new components unique and flexible. Campagnolo's proven one-lever-one action philosophy prevents mis-operation, even in moments of competitive tension or fatigue. The internal ultra-shift mechanism controls the 12-speed rear derailleur so that up to 5 sprockets can be shifted down or 3 sprockets up in a single movement. Thanks to the new cables and their housings, the Chorus brake levers offer the same extremely durable and soft shifting performance as other 12-speed groups.
Thanks to the 22 mm diameter pistons, Campagnolo's flat-mount calipers always have a powerful and easily controlled braking force. The pads are reset by the magnet system without friction when the brake lever is released. A special metal plate between the brake pad and the caliper piston dampens vibrations during braking.
The various Campagnolo caliper models can be fitted with the disc selected by the user and meet the highest performance requirements: in addition to the specific 160 mm diameter front caliper, rear calipers are also available for 160 or 140 mm diameter discs. Particular attention has also been paid to facilitating maintenance and assembly work: the brake pads, equipped with a wear indicator, are easily replaceable as they do not require return springs. The focus has also been on fitting the disc to the brake calliper to simplify and speed up wheel changes.