Box One Single-Speed Cogs are available in two different versions -- CNC-machined from long-wearing 7075-T6 aluminum alloy or CNC-machined from chrome-molybdenum. Both types are designed to fit Shimano-compatible cassette hubs and have a 5mm wide inner base, giving a more solid interface with the cassette body. The alloy cogs are anodized black with laser-etched graphics, while the Chromoly cogs have an ED finish with laser-etched logos.
- Shimano Compatible Driver
- Heat-Treated Chromoly
- 3/32" Chain Compatible
|Material||7075-T6 Aluminum, Chromoly|