[QUOTE 3995038, member: 45"]You're being a bit deceptive. They're not designed or tested for any particular type of accident. They're designed to protect the head against particular impact forces, which may or may not be experienced during a collision with a car, the floor, a wall, another bike, a truck,...[/QUOTE]
There's an excellent "why cycling helmets are pants and should not be used by equestrians" article on a very pro-equestrian helmet website in the states. Can't find the link right know but it basically said in the real world you'd have to try very very hard to have a fall in which a cycle helmet would work....