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™ RD forms the backbone of X-ACTUATION™ technology for unbelievably smooth shifting action.
Large upper pulley offset automatically adjusts chain gap
X-HORIZON design reduces shift force and ghost shifting
12-tooth X-SYNC™ pulley wheels
TYPE 2.1 technologies: ROLLER BEARING CLUTCH™ and CAGE LOCK™