Campagnolo Braze-On Deraillaur Clamp Adapter - 35mm, Black

The System that links the derailleur to the frame is made of aluminium co-pressed w/ the engineering polymer of the body of the derailleur. The core of the derailleur is composed of an electronic actuator; in turn composed of a gear motor w/ a built-in resolver that uses Magnetic Hall Sensor technology (as the sensor is not in contact it is not affected by the vibrations generated by the terrain, and is therefore always precise). The actuator is also equipped w/ a "cascade gearbox".