(Tigard, OR) -- A cyclist suffered life-threatening injuries in a crash Tuesday morning in Tigard. Police says the 48-year-old rider was southbound on the Highway 99W sidewalk when he moved into the bike lane and then crossed the southbound lanes and hit a northbound car. The man wasn't wearing a helmet. A nurse and responding officers performed CPR until paramedics took him to a hospital. The driver remained at the scene. No citations were issued.