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 chain through 12-speed Tooth width optimized for 9,10, and 11-speed chains Not compatible with Campagnolo Ekar 13-speed chains For more details and compatibility information for this product please visit https://www.wolftoothcomponents.com/