Wolf Tooth Single Speed Aluminum Cog - 20t Compatible 3/32" Chains Purple

These Wolf Tooth aluminum single speed cogs feature extra tall teeth for reliable chain retention when using chain tensioners.

Crafted with strong and lightweight premium 7075-T6 aluminum

Optimized for use with 91011 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