BOX Box One 3/32" CNC CrMo Cog Black - 18t

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Single-speed CrMo cogs are CNC-machined from long-wearing chrome-molybdenum

Designed to fit Shimano compatible cassette hubs. 5mm wide inner base provides solid interface with the cassette body

3/32 inch or 1/8 inch chain compatible

Heavy duty heat-treated CrMo

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