Cyclists who wear protective helmets are more likely to be knocked down by passing vehicles, new research from Bath University suggests.
The study found drivers tend to pass closer when overtaking cyclists wearing helmets than those who are bare-headed.
The truck wasn't going to stop, Lipscomb said, so he slammed on his brakes, flipping his bike and landing in the street.
A moment later the truck rolled over his head.
"I didn't see it coming, but I sure felt it roll over my head," he told The Capital Times newspaper. "It feels really strange to have a truck run over your head."