This SRAM derailleur has a “horizontal parallelogram” design and pulley offset, X-HORIZON that 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 and reduces shift force.|
The large upper pulley offset automatically adjusts chain gap
A straight parallelogram design with horizontal movement reduces shift force and improves drivetrain performance
The 12T X-SYNC pulley wheels use silent tooth design
TYPE 2 technologies include: Roller Bearing Clutch and Cage Lock 220g estimated weight.
This derailleur must be used in conjunction with SRAM's XX1 complete group (rear derailleur, cassette, shifter, chain, cranks/chainrings)
Manufacturer's Part Number:00.7518.020.000