Originally Posted by
alcjphil
This is true, but very rare for a 5 speed freewheel.....
Yes. Very rare indeed, almost like hen's teeth. 5s freewheels are limited by the diameter of the body, so 13t is the limit.
With the advent of 6s the last sprocket was hung from it's neighbor, making 12t possible.
Reaching back to the farthest, darkest parts of my memory, Regina made 5s freewheels with more compact bodies, hanging the last 5s position, but I don't believe they ever made a 12t for it.