Help

[JMF]

Hello everyone, so im looking at getting a Bridgestone bike i dont know which model it is, and im just woundering if anyone can identify the bike for me. I have included the url to the page.       http://desmoines.craigslist.org/mcy/2317475531.html
thank you for your help.
JMF

[OldSwartout]

I think it may be a 90 trail.  It's got an iron cylinder, up pipe and a small and large sprocket on the rear.