Weighing less than 120 g this newly developed rear derailleur is about 30 % lighter than common derailleurs. Due to the inherent stiffness of the carbon fibers shifting precision is still impeccable, setting new standards for road racing.

Aside from low weight, the main priorities for our R&D team were reliability and durability. All screws are set in solid thread inserts made from specially hardened aluminum; the threads were not cut into the carbon fibers. Wherever it made sense we even resorted to heavier steel parts to ensure perfect function. The result has been proven to meet our expectations in long test runs.

The derailleur is equipped with KCNC pulleys.