Interesting....
When I was on my teens (90s) I used to really want a Zaskar but back in those days they were measured in inches rather than S, M, L and so on and the smallest one you could get was a 12.5 inch ...it had a kinked top tube but measured 14 inch to the top of the seat clamp, the next one up being the 14.5 which measured 16 to the top...like what hans rey used to ride in the dirty tricks and cunning stunts video!
Unless they have changed their sizing now???