In the fall of 2005, I bought a new bike
seat, clipless pedals and shoes, and went out on a long ride, tackling hills with vigor. After, my adductors, groin, etc, were very tight. A few days later, I rode again--for the last time. My adductors and groin hurt alot; for a few weeks, I could still run, but soon, I was unable to even run. After every run, my pelvis would completely tighten up, and I developed a catching/twanging sensation in my left hip socket.