Box One Cog Single Speed Alloy Cassette (Black) (3/32) (15T) - BX-CO1575A15-BK
Box One Cog Single Speed Alloy Cassette (Black) (3/32) (15T) - BX-CO1575A15-BK, CNC-machined from long-wearing 7075-T6 aluminum alloy Designed to fit Shimano-compatible cassette hubs and have a 5mm wide inner base, giving a more solid interface with the cassette body Alloy cogs are anodized black with laser-etched graphics