The Kestrel 4000 has a fairly wide head tube compared to other modern bikes, but it at least keeps cable routing clean with a TRP centerpull brake. I know of a much more aerodynamic aero brake, but sadly it doesn't fit on the integrated TRP mounts the Kestrel fork uses.
Pro triathletes Michael and Amanda Lovato are one of triathlon's dominant couples, taking many race wins between them. The pair invited me to their home in Boulder, Colorado, where Michael gave us an exclusive look at his two-car garage which has been completely overrun with triathlon equipment and serves as their indoor training space. Check out the article for a full video tour of the garage, guided by Michael himself.