Description
Box One Alloy Single Speed Cogs are CNC-machined from long-wearing 7075-T6 aluminum alloy and are designed to fit Shimano compatible cassette hubs and have a 5mm wide inner base, giving a more solid connection to the cassette body. The alloy cogs are anodized black with laser-etched graphics. Size: 16T, 13T, 14T, 15T, 17T, 18T