The SRAM X.9 Rear Derailleur features the same robust qualities and technologies as the X.0 system. If you are looking for greatness in a refined high-performance package then look no further, choose the X.9.
|Hub/Brake Compatibility||Rim Brake|
|Front Wheel Type||Track|
|Front Hub Spacing||100|
|Front Axle Type||10x1|
On Sale! $57.75