• CNC'd 7075 T-6
• For use with SHIMANO FC-M960 crankset
• The ENGINEERED ring!
• 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 chainrings are cut from thick .190" material
• Outer chainrings are cut from .160" material
• For use with 9 or 10 speed drivetrains
• Anodized w/Laser etched Graphics
*For best performance use only Blackspire SuperProX rings as a set. These chainrings will not work if mixed with other brand rings.