SRAM GX 1 X 11 Speed Rear Derailleur Colour:Black speed and control at the

speed and control at the highest level

such as fasteners with poor fitment or loose tolerances

the oldest track bicycle race in the world

Ultra long distance performance

Material: Plastic

SRAM GX 1 X 11 Speed Rear Derailleur Colour:Black speed and control at theAbout SRAM GX 1 X 11 Speed Rear Derailleur The SRAM GX X HORIZON rear derailleur is engineered for smooth, reliable shifting action from the larger upper pulley offset to the 12 tooth X SYNC pulley wheels. By eliminating unwanted chain movement, X HORIZON shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with CAGE LOCK technology, wheel removal and installation are easier than ever Features X HORIZON design