Quote Originally Posted by Becky View Post
It sounds like both of your bikes have SRAM components and I'm guessing that both cranksets use the same style bottom bracket. If this is true, then it's a pretty easy swap. Put the compact on the Cervelo, drop the front derailleur to match, re-adjust the front derailleur limits and tension, and you're set.

I do this with one of my road bikes, using the triple crankset from my commuter, when I want lower gears. (It helps that I have triple shifters on the road bike and that neither crankset is particularly worn, so there's no issue with wear patterns.)
Thank you Becky! I'm definitely going to check this out.