Range_13T x 3/32`

Box Components Box One 7075 Alloy Single Speed Cog 13T x 3/32` COG BOX ONE ALY 13T 3/32 f/SGLE SPD CASS 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…