Every detail of the 11-speed X1 X-HORIZON™ 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.
X-HORIZON™ design reduces shift force, ghost shifting and chain slap
12-tooth X-SYNC™ pulley wheels
Large upper pulley offset automatically adjusts chain gap