The SRAM Rival® 1 X-HORIZON rear derailleur is engineered for smooth, reliable shifting actionfrom 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 while eliminating ghost shifting and chain slap 12-tooth X-SYNC pulley wheels
• Large upper pulley offset automatically adjusts chain gap
• Sealed cartridge bearings aluminum cage
• Technologies: X-HORIZON, EXACT ACTUATION, X-SYNC, ROLLER BEARING CLUTCH, CAGE LOCK
• Medium cage: 11-26 through 11-36 cassettes(269g)
• Long cage: 10-42 cassette