Aluminum Single Speed Cog

These aluminum single speed cogs feature extra tall teeth for reliable chain retention when using chain tensioners. They are reversible and feature a 4.5 mm width at the base that won&';t dig into your freehub body. Compatibility These will fit on Shimano Hyperglide style freehub spline (geared or single speed). Not compatible with Shimano Microspline or SRAM XD freehubs. Designed to work with any 9, 10, and 11 spd chain and SRAM Eagle, Shimano HG+, KMC, Wipperman, and Connex 12 spd chain. Not compatible with single speed specific, 12 spd SRAM Transmission (T-type) and Road Flattop chain or Campagnolo Ekar 13-spd chain. Related products Single speed spacer kit with stainless steel lockring allows you to dial in your chainline. Our Drop-StopA(R) chainrings pair with these cogs for the ultimate single speed drivetrain. For more durability, check out our Stainless Steel Single Speed cogs. Tech Specs Weight: 16T a 14.5g | 17T a 16.5g | 18T a 19g | 19T a 21g | 20T a 23.5g | 22T a 28gMaterial: 7075-T6 AluminumMade in the USA Patent and trademark information