Originally Posted by
rccardr
Your bike indeed has a 23 inch frame. ST frame series (touring oriented) were measured in inches. SR series bikes (racing oriented) were measured in centimeters.
A 1987 Cannondale ST is a wonderful bike with considerable potential.
Great info. I have an 87 SR500, so did not realize the ST touring oriented bikes were measured in inches. I assumed as much with the OP's post, but its nice to know for sure.