The Blackspire Super Pro X Chainrings 9 Speed are engineered for use with the Shimano XTR FC M960 Crankset. The Blackspire Super Pro X Chainrings features modified shift gates and special profiles to allow flawless shifting, middle and outer chainrings have strategically placed stainless steel pins to further enhance shifting, middle and outer rings are cut from thick .190 material, and Anodized w/Laser Etched Graphics. For 9 Speed drivetrains.
*For best performance use only Blackspire SuperProX rings as a set. These chainrings will not work if mixed with other brand rings. COMPATIBLE ONLY WITH XTRM960 CRANKS*
**DOES NOT INCLUDE XTR CRANKSET**
Sizes: See Drop Down For Options
Material: 7075 T6 Aluminum
Bolt Pattern: 146/102/64 - 44/32/22T