The Klein CAAD12

Depends where the exit holes are. On my Talbot the exit at the down tube / BB then go back in to the chainstay. Thank goodness. It's ducted. I think those CAADs route their inside the BB shell.

Huge pain in the ass getting the rear cable functioning as the exit hole on the chainstay doesn't point directly at the cable socket on the caliper, meaning it gets a shit bend that can only be achieved by removing the caliper, inserting the cable and outer, then squishing the caliper back on. Needless to say the rear brake does not feel tres bon, although it feels better now.