5” chainstay length and quick 75

The Unit is designed to be as low profile as possible in case you like to stop using your feet

paired with an air plush lining for maximum comfort and a dual layer lycra design a the back that's soft on the inside and durable on the outside

with an 8-spline chromoly spindle that locks in securely

Box One Chromoly Single Speed Race Cog Size:13T 5” chainstay length and quickBox One Single Speed Cogs are CNC machined from chrome molybdenum and are designed to fit Shimano compatible cassette hubs and have a 5mm wide inner base, giving a more solid connection to the cassette body. The chromoly cogs have an ED finish with laser etched logos.