My wife and I bought a 1999 Cannondale RT1000 about six months ago. We have it working pretty well for us, but I don't like the standard 170mm captain's cranks. I am used to 172.5 or 175mm cranks, and the RT's 170mm cranks make me feel like I'm riding a little kid's bike.
I believe the bottom bracket is a "square taper" type. Here's a picture. (It's not our bike, but just like it).
I haven't found any Shimano "square taper" captain's cranks online. The new Shimano and FSA cranks seem to use a different bottom bracket. Sugino cranks seem to be readily available through Amazon and eBay. I have also checked on da Vinci cranks.
<> How do the Sugino cranks compare to the da Vinci cranks?
<> Are there any other options?
The captain's timing chain ring and bottom bracket are just fine, so I am just looking for cranks.