The number-one killer of bicyclists is riding against traffic (riding on the right side of the road). This is a killer because drivers entering roads rarely check to their right when pulling out. They assume it’s clear because they know cars don’t come from that direction. So cyclists riding there have no chance. Why do cyclists make this deadly mistake? Sadly, it’s because parents teach them to. Why? Because they’ve got their safety rules confused. They’re applying the adage to always walk facing traffic (a good rule) to bicycling—a lethal mistake.