FYI – I just read that two people died in a triathlon event in central NY this month (Musselman), both of them on the bike. One athlete was in the sprint race, the other in the half (Ironman) distance race. Kind of unusual, especially during a sprint triathlon. Apparently that guy ran into the back of a parked SUV. It doesn’t sound like the car stopped suddenly, so I don’t know what went wrong.
The majority of racing deaths in triathlon have still taken place on the swim, but it can also happen on the bike too. Be careful, whether you are commuting, going for an easy ride, training or racing.