If any of you are familiar with Konas I could use your help. I bought this bike off Craigslist a few years ago, the previous owner took all the stickers off and I can't seem to find a serial number or anything like that. I know it's an older Kona Stinky or a Stab but I can't tell, the frames look exactly the same to me. Is there anything that is unique to either frame that I should be looking for?