Campagnolo Super Record 12 Speed Wireless Rear Derailleur Link Sports which contains a special combination

which contains a special combination of compounds not found in many other foods

As you see

Head - SmartHead® ThreadLock with integrated dust capHandle - Aluminum / Rubber

Made from 6080 Aluminium and weighing just 16gSuitable for 1-1/8" steerers

Tubular rims and interchangeable QRM cartridge bearings minimize friction

Campagnolo Super Record 12 Speed Wireless Rear Derailleur Link Sports which contains a special combinationThe excellent performance of Campagnolo transmissions. The new Super Record Wireless rear derailleur makes the most of Campagnolo state of the art technology to guarantee maximum shifting performance. Thanks to the total absence of cables, the component is easy to install and simple to maintain. Developed with user centric design, the Super Record Wireless rear derailleur is teamed with a battery delivering an autonomy of over 750 km. Charging times