TRP G-Spec TR12 M850 Shifting Kit Shifter + Rear Derailleur 12sp Black

The TRP M-850 transmission is a high performance 12 speed trail kit consisting of a rear shifter and a shifter. The peculiarity of the latter is that it is able to simultaneously switch to as many as 5 gears! The transfer was specifically designed for use with 10-50T cassettes. Both components are made of a combination of carbon fiber and aluminum, therefore they are highly wear resistant and weigh only 402 grams in total.