Sram Rear Derailleur X1 Type 2.1 Black

Every detail of the 11-speed x1 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. - speed (rd): 11s - cable pull ratio: x-actuation - cage (rd): long - max tooth: 42 - color (rd): black - pulley bearings material: steel - cage material (rd): aluminum - weight (g): 256