Many of your questions can be answered by contacting your local Cannondale dealer. Contacting them first is essential in cases where you experience a problem, a sizing query, or a warranty claim.
You can also check our FAQ page for commonly asked questions, we cover a lot of stuff here!
It bears repeating: please start with your local Cannondale Dealer... these guys are great and know way more than we do from hands-on experience of our products (and everyone else's)every day. If they really can't help, fill out the form and one of our team will be in touch.