Every detail of the 11-speed X1 rear derailleur is engineered for smooth, reliable shifting action—from the larger upper pulley offset to the 12-tooth X-Sync pulley wheels. By eliminating unwanted chain movement, X-Horizon shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with Cage Lock technology, wheel removal and installation are easier than ever.
Large upper pulley offset automatically adjusts chain gap
X-Horizon design reduces shift force, ghost shifting and chain slap