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 aluminumOptimized for use with 91011 speed chains but suitable for use with some 12-speed chainsReversible and 4.5mm wide at the base to help prevent cog from damaging your freehub bodyFits Shimano Hyperglide style freehub splinesNot compatible with Shimano Microspline or SRAM XD freehubsNot compatible with Campagnolo 13-speed chains Tooth Count 20 Cassette Body Type Shimano HG Drivetrain Speeds Single Speed 3/32" Material Aluminum Defined Color Purple