Sram NX Eagle X-Horizon 12S Type 3 rear derailleur

This new NX Eagle™ derailleur features the proven Sram 1x-specific X-Horizon™ design. The larger, 14-tooth X-Sync™ lower pulley easily facilitates 11- to 50- and 10- to 50-tooth cassette capacity, and also adds to NX Eagle’s overall smooth-pedaling feel. The Type-3 Roller bearing clutch™ provides quiet, consistent performance and durability.

Features

Completely new rear derailleur incorporating our proven X-Horizon™ design and Type-3 Roller bearing clutch™ technology.
Eagle™ ecosystem-engineered mounting system and Cage lock™ positioning add robustness.
Eagle™ pulley technology provides greater efficiency, crisper shifting and quieter operation.
All levels of Eagle™ drivetrain systems.
Real weight: 338 g (long cage).

Technologies

Cage Lock™
With Cage Lock™ technology in the rear derailleur, wheel removal and installation - as well as chain installation - becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place.

Roller Bearing Clutch Type-3™
Roller Bearing Clutch™ rear derailleurs deliver maximum drivetrain stability - even through the most punishing terrain. With Roller Bearing Clutch™ technology, derailleur bounce and chain slap are eliminated without sacrificing precision.

X-Horizon
The X-Horizon rear derailleur’s ‘straight parallelogram’ design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gears.