Look at the serial number on your bottom bracket, then go to this site to decipher the dates. Best of luck and welcome to C&V. Posting pictures of your bike also helps!
http://www.vintagecannondale.com/info.html
http://www.vintagecannondale.com/
__________________
Bob
Enjoying the GA coast all year long!
Thanks for visiting my website:
www.freewheelspa.com