Hey, I am in the process of building up a new(to me) CAAD 9. I am using some parts off of my old bike. I want to keep my Truvativ ISIS Drive Elita cranks from my old bike, but im not sure what bottom bracket to use in my new CAAD frame that will also work with the cranks I have(and also keep the correct chainline). I think its supposed to be a 68mm shell, but im more concerned with spindle length. Does anyone know? I know its probably a total amature question but I do not know. Thanks for the help