Originally Posted by
quesofrito
i thought hubs could only be fixed or free, not both at the same time (exept for flip flop). i thought they had a different threading for each type of bike (fixed or SS).
What you've got there is a
very nice sheriff's star Campy track hub. It just so happens to have a freewheel/single speed cog on it. You can remove that and install a fixed cog and a lockring instead.
Do you have the matching front hub?