Aaron Gwin is a professional mountain bike racer from the United States, known for his exceptional skills in downhill racing. Born on December 23, 1987, in Moreno Valley, California, he has made a significant impact in the sport, winning multiple championships and earning a reputation as one of the top riders in the world. Gwin gained fame for his remarkable performances in the UCI Mountain Bike World Cup, where he secured several overall titles. He is particularly noted for his ability to ride without a rear brake, a unique technique that showcases his confidence and control on challenging courses.