These Wolf Tooth stainless steel single speed cogs feature extra tall teeth for reliable chain retention when using chain tensioners and are machined from 416 stainless steel billet with heat treating and electropolishing post processing for durability and corrosion resistance.

• Item weight: 38g
• Made from hardened and electropolished 416 stainless steel
• Optimized for use with 9,10,11 speed chains, but suitable for use with some 12-speed chains
• Reversible and 4.5mm wide at the base to help prevent cog from damaging your freehub body
• Fits Shimano Hyperglide style freehub splines
• Not compatible with Shimano Microspline or SRAM XD freehubs
• Not compatible with Campagnolo 13-speed chains

Wolf Tooth Stainless Steel Single Speed Cog Driver and Single Cog UPC: 812719022934