I can't say for sure, but the answer lies here somewhere: http://www.vintagecannondale.com

It's not an early 90's frame. It's from at least 95 or so, but could be almost any year between then and now. They've kept that early CAAD frame around forever in bikes like the Bad Boy, Silk Warrior, Adventure, etc.


If that's a built-in canti mount in the back, that would narrow your search down a bit. Many of the lower end bikes had a clamp-on mount.

My best guess is that it's one of their cyclocross frames, converted to flatbar. I say that because of the horizontal top tube. Most, if not all, of the hybrids had a sloping top tube.