SRAM Rear Derailleur XX1 Type 2.1 11 speed Black Selle Italia 10º release angle makes it

10º release angle makes it easier to unclip

cyclocross or cross country MTB riding where a relatively high amount of time is spent in seated pedalling

SRAM NX Eagle 12 speed drivetrain

5mm holes for up to 6 months

So you can do what you love

SRAM Rear Derailleur XX1 Type 2.1 11 speed Black Selle Italia 10º release angle makes itSRAM Rear Derailleur XX1 Type 2. 1 11 speed BlackWith 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