: The new TR12 rear derailleur is able to provide 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 this feature, The Hall Lock.
- Hall Lock
- G-Spec Ratchet Clutch
- G-Spec finishing touches:
- Carbon fiber cage & Upper link
- Extra wide parallelogram pivot
- Sealed cartridge bearings pulleys
: Ergonomics are key to Aaron, which is why he wanted something a little different. As a result, 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
- New linear actuation for improved ergonomics and consistent thumb contact
- Enhanced grip & tactile feel built into lever paddles: embossed grooves on advance and release lever
- Carbon fiber upper housing & advance lever position with brake lever
- Ball bearing equipped
- 12 speed
- Tool-free straight lace cable changes
- Rider adjustable home position of lower lever with a 40-degree range
TRP engineers worked closely with John Hall to create the Hall Lock. A Lever integrated into the B-knuckle mount, which can be opened or closed, as needed. For working on the derailleur or changing the wheel, the Hall Lock is opened. When locked, the derailleur is stabilized for the roughest conditions. This feature helps maintain the utmost accuracy in shifting and superb chain retention. Its clamping force can be adjusted to balance stability and security with the derailleur’s ability to deflect on impact.
- Hall Lock is an on/off feature with adjustable force that brings TRPs derailleurs the utmost stability, accuracy, chain retention and quietness in operation for mountain bikings roughest conditions
- It can lock-out the main pivot bolt to prevent your derailleur from lifting, slapping and making noise
- You can set it up however you like if you want maximum stability you can lock it; if you like it to move like a standard derailleur you can adjust it to do so
The second derailleur feature is a ratchet style clutch, which is adjustable. Depending on a full suspension bike’s design, there can be enough chain growth to feel resistance from the clutch. If a rider wants to free up the system up, he or she can back off the clutch to balance pedal feedback with the clutch’s chain retaining properties.
Chain lenght indicator
- Large diameter clutch surfaces for wear resistance and predictable force generation
- Oversized friction surface area for consistent force output
- Adjustable clutch force provides a wide range of customizable ride tuning and compensation for wear
- Quick and easy on/off switch removes all clutch force when needed for wheel changes
- Robust pawl engagement
- Indicators printed on the knuckle and the cage for easy viewing
- This marking helps ensure a quick and accurate measure of the systems required chain length