Dude. A helmet has saved my life - twice. Once another rider cliped me in a group ride and I went down hard - hit my helmeted head. Replacement#1. Second time - A part of my bike broke - in traffic - I went down hard with a car behind me. Luckily they weren't impatient. Replacement #2. I cannot stress the importance of them enough. After, my second wreck though I woke up in a jolt reliving that one. My partner, thought it was so sad in my half asleep state I said, "I fell again. It hurts." Be careful out there, ladies.