Blackspire Kettingblad race super pro 130/54 zilver - 596-554

These are all 5 arm chainrings. CNC’d 7075 T-6. The ENGINEERED ring! Modified shift gates and special profiles to allow 9 and 10 speed chains to shift flawlessly. Outer chainrings have strategically placed stainless steel pins to further enhance shifting. Cut from .160″ material. For use with 9 or 10 speed drivetrains. Anodized w/Laser etched Graphics. NOT Compatiblie with 2004 or newer Dura-Ace and Ultegra cranks. Sizes Available: 110 – 34, 36, 46*, 48*, 50* / 130 – 38, 39, 42, 52*, 53*, 54, 56 / 135 – 39, 42, 52*, 53*, 54, 56. * Indicates rings with ramps and stainless steel shift pins.