absoluteBLACK Single-Speed Cog - HG Spline 20t Black

absoluteBLACK single speed cogs feature a unique tooth shape narrow-wide profile and perfect roundness. Crafted with CNC machined 7075 aluminum with an anodized finish for long-lasting construction.Tooth design is wider and more "square like" compared to other single speed cogsThe narrow-wide profile provides additional strength and offers greater chain retentionCompatible with 1X 6 7 8 9 10 11 and 12-speed chainsTo utilize the narrow-wide feature use a 9 10 11 or 12-speed chainNot compatible with half-link chains