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 derailleurs 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