Blackspire Kettingblad mtb super pro 64/24 Shimano xtr fc-m970 9sp 10sp - 970-6424

CNC’d 7075 T-6. For use with SHIMANO FC-M970 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. 104/38t and 104/40t chainrings for 2X drivetrains. Anodized w/Laser etched Graphics. For best performance use only Blackspire SuperPro rings as a set. These chainrings will not work if mixed with other brand rings. Sizes Available: 104/64 – 22, 24, 26, 28, 32, 34, 36, 38*,40*,42,44,46. Color(s): Anodized Black. * 38t and 40t are designed for use on 2X drivetrains only. 38t requires 24t or 26t granny ring. 40t requires 26t or 28t granny ring.