Sram:

the next generation of sram
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

things to remember
• this GX rear derailleur is an integral part of the SRAM 1x™ drivetrain system. No compromises.

Features and benefits
• x-horizon™ design reduces shift force, ghost shifting and cage slap
• 12-tooth x-sync™ pulley wheels
• large upper pulley offset automatically adjusts chain gap
• sealed cartridge bearings
• aluminium cage

specifications
speed (rd): 11s
cable pull ratio: x-actuation
cage (rd): long
max tooth: 42
colour (rd): black, red
pulley bearings material: steel
cage material (rd): aluminium