What I object to is the phrase "momentary inattention" - the cyclist would have been visible from 40-50 metres away, giving something like 3-4 secs to see him. 3-4 secs is a long time in a car, it's not "momentary". "Momentary" is when someone steps from behind a parked car when you were just briefly glancing in the mirror or checking the next right turn is clear.