What are the limitations and possibilities of customizing the components on a Cannondale CAAD12, and are there any specific considerations or restrictions that riders should be aware of when looking to upgrade or swap out parts? For example, are there any proprietary components or unique design features that might make it difficult to install third-party parts, or are there certain components that are more easily interchangeable than others? Additionally, are there any specific upgrade paths or component combinations that are commonly recommended or discouraged by Cannondale or experienced riders, and what are the potential benefits and drawbacks of customizing the components on this particular frame?
