Campagnolo Super Record 12-speed Rear Derailleur

Campagnolo's Super Record 12 Speed rear derailleur offers precision, lightness and versatility for use with the disc or rim brake groupsets.Lightweight technopolymer reinforced with UD Carbon Fibre constructionOptimised trajectory means that the upper pulley wheel is at constant distance to the sprocket in use12-tooth pulley wheels are perfect for cassettes that have a wide range of teethOptimised return spring guarantees constant chain tension regardless of road vibrationDesigned to improve performance and function in every aspect, the new Super Record 12 Speed mechanical rear derailleur has an innovative shape that envelopes the sprockets better thanks to 3D Embrace technology, creating a double effect: allowing the chain to maintain optimum traction at all times, thus increasing the speed, power and precision of shifting; and ensuring that the derailleur is always kept an optimal distance away from the sprockets.The new cage has also been optimised to work with sprockets from 11 to 34 teeth, allowing a single version to be maintained for all available sprocket sets. The upper part of the new Super Record 12 Speed mechanical rear derailleur gearbox is made of carbon fibre-reinforced techno-polymer, contributing to its robustness and lightness, while the stop adjustment screws at the back of the rear derailleur make adjustments very simple.