Box Components Pinion 3/32" CNC Cr-Mo 17T Cog, Black
New Pinion Single-Speed Cogs are CNC-machined Chromoly. 3/32” cogs are available in 16 to 17-tooth sizes. Both are designed to fit Shimano-compatible cassette hubs and have a 5mm wide inner base, giving a more solid interface between the cassette body. The Chromoly cogs are electroplated black with laser-etched logos.