TRP TR12 Rear Derailleur and Shifter Kit

Derailleur: The TR12 rear derailleur provides a quiet and accurate ride over the roughest trails. The key feature to this pursuit is the Hall Lock. During the Race season, lead mechanic for Intense Factory Racing, John Hall, noticed excessive movement around the B-knuckle when riding over rough rock gardens and in tracked out corners. This was leading to more chain skipping and slapping creating possible variances in shifting. This inspired John’s idea to lock the B-knuckle to the bike’s derailleur hanger. TRP engineers worked closely with Hall to create The Hall Lock.

• Hall Lock lever integrated into the B-knuckle mount which can be opened or closed, as needed.
• G-Spec Ratchet Clutch with adjustable clutch force provides a wide range of customizable ride tuning and compensation for wear.
• Carbon fiber outer cage and upper link, forged aluminum inner cage
• Extra wide parallelogram pivot
• Sealed stainless steel cartridge bearings
• 11-tooth upper pulley, 15-tooth lower pulley
• Robust pawl engagement
• Chain length indicator printed on the knuckle and the cage helps ensure a quick and accurate measure of the system’s required chain length.
• Set-up marking aids help mechanics and riders set up the B-adjustment gap and ensure that accurate adjustments can be made quickly and without special tools.

Shifter: Ergonomics are key to Aaron Gwin. Inspired, TRP engineers looked at the cable release lever’s ergonomics and devised a system to move it in a linear path to mimic the motion of a rider’s thumb, rather than rotating it away. This unique positioning allows for a more consistent contact patch providing overall better grip and shifting performance when the trail gets rowdy.

• Shift levers designed and located for optimum performance by Aaron Gwin
• Linear actuation for improved ergonomics and consistent thumb contact
• Enhanced grip and tactile feel built into lever paddles: embossed grooves on advance and release lever
• Carbon fiber upper housing and advance lever, forged aluminum release lever
• Sealed stainless steel ball bearing equipped
• Tool-free straight lace cable changes
• Rider adjustable home position of lower lever with a 40-degree range

Available Colors: Black/Black, Black/Silver, or Black/Gold
Product year release: 2020