It's got the same geo as the mantis as I understand.
20.25" c to c top tube
18.5" c to top seat tube
The stem is about 145mm with rise.
Got that comfy vintage fit!
Its an odd size when you read it. If anyone else is trying to understand the fit. I am 5-11 (32" inseam) and it was very comfortable. I would say 5-10 to 6-2 would be the range (32-34 inseam).