The TRP TR12 drivetrain system brings World Cup downhill shifting technologies to the trails. The 12-speed design is the result of a collaboration between TRP rider Aaron Gwin and his mechanic John Hall.This advanced derailleur includes a Hall Lock - a lever integrated into the B-knuckle mount that locks out the main pivot bolt to prevent your derailleur from lifting slapping and making noise The Hall Lock can be turned on or off and the clamping force can be adjusted to balance stability and security with the derailleur’s ability to deflect on impact G-Spec Ratchet Style Clutch keeps tension on the chain through the movement of a bikes travel The clutch has integrated adjustability effectively providing the individual balance between pedal feedback and chain retention for your bikes chain growth The shifter features linear actuation for improved ergonomics and consistent thumb contact Enhanced grip and tactile feel is built into lever paddles Embossed grooves on advance and release lever Carbon fiber upper housing and advance lever
