DER SRAM RR GX 1X 11s TYPE 2.1 LONG BLK

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

Roller Bearing Clutch means derailleur bounce and chain slap are eliminated without sacrificing precision

Sealed cartridge bearings

Aluminum Cage