Natalie has been racing triathlons this summer, and for the bike part, she's been riding her road bike, with a few tweaks. Here, have a pic:
The base is her System Six, carbon and aluminum frame. The upgrades are:
1. Speedplay pedals, compatible with some tri-specific, easy-on shoes
2. Zipp 404 carbon tubular wheels
3. Profile Designs T2 Cobra aero bars
The changes do three things: Lighten the bike up considerably; ease mounting and un mounting; give a aero position for efficient riding. So far this has been a pretty good move! Next stop, Kona!