onyx-aluminum-cog-3-32-18t-black
onyx-aluminum-cog-3-32-18t-black, Onyx aluminum single speed cogs.7075 T651 AluminumBroached splines are made exactly the same for every cog, every time.Made in the USAItem SpecificationsCassette Body TypeShimano 7 SpeedDefined ColorBlackDrivetrain SpeedsSingle Speed 3/32"MaterialAluminumTooth Count18 ONYX Racing Products Aluminum Cogs Driver and Single Cog