Description
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With its "horizontal parallelogram" design and pulley offset, X-HORIZON™ keeps the chain gap constant across all 11 gears, providing fast, precise shifts. By limiting all movement to the horizontal axis, this design is faster, reduces shift force and eliminates ghost shifting. ROLLER BEARING CLUTCH™ technology reduces bounce and chain slap. CAGE LOCK™ technology makes wheel removal and installation easier than ever before. Paired with the XX1 shifter, the X-HORIZON™ rear derailleur forms the backbone of X-ACTUATION™ technology for unbelievably smooth shifting action.

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Msrp

$298

Model ID

RD-XX-1-A2

Features
  • 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
  • Ceramic bearings
  • Carbon cage
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Technology

Specifications

Speed (RD) 11s
Cable pull ratio X-actuation
Cage (RD) Long
Max tooth 42
Color (RD) Black, Blue, Green, Red
Weight (g) 245