Anybody know the model of this Cannondale?
 

Any info would help! Thanks

https://s18.postimg.org/ohywgcns5/IMG_1719.jpg

pictured from the drive side and showing the serial number on the bottom of the frame (and possible on the bottom of one of the chainstays would help a lot.

My first impulse, however is that it's an old one. ;)

It's an early touring frame from mid 1980s.
Steel fork.

They make a pretty good ride from what I hear.
It's missing the shifter bosses, which can be found.

Might be able to dig up more info from here: VintageCannondale.com | Vintage Cannondale - Catalogs, Information and Decals

Good resource.
"ST" was the prefix for touring bikes, with the next numbers being the model, based loosly on retail price.
ST400, ST600, ST800

The frames were the same (different paint), with different components.

that's a big one. probably a 62cm. They are from what I have seen worth a bit more.

Homebrew knows his stuff!

+1. IIRC the white frame was the ST400. Examine it closely for cracks around the welds. I've seen many with cracked welds around the seat tube/seat stays.

St400 and missing shifter bosses and brake cable clips.

I have spare shifter bosses, and I assume others do too. Cable guides are rare, but non-original replacements are available, so I've heard.

Classic & Vintage forum is good if you want to pursue it further.