TMC Health 24 Hours in the Old Pueblo Celebrating 27 years of riding singletrack in the Sonoran Desert, the TMC Health 24 Hours in the Old Pueblo is one of the largest 24-hour mountain bike events in the world. But calling it a mountain bike race doesn't quite explain it. It's really a party in the desert with a biking problem. Every Presidents' Day weekend, thousands of mountain bikers, friends, families, volunteers and assorted desert characters create a temporary city … Continue reading 24 Hours In the Old Pueblo →