You might see hundreds of cyclists racing through Southern California this week. They're part of the Amgen Bike Tour of California.
The seven-day, 583-mile men's race kicked off Sunday in Northern California. After passing through Santa Barbara and Ojai, it will enter Los Angeles County on Wednesday.
Riders will pass through Santa Clarita, Ontario, Mount Baldy, Big Bear and La Canada-Flintridge before crossing the finish line in Pasadena on Saturday, May 20. One of the most grueling stages includes 12,000 feet of vertical climbs in the San Gabriel Mountains.
Kristen Klein, president of the Amgen Tour of California, tells KPCC, "We're very proud that it's the second biggest race outside of the Tour de France. So not only is it the best cycling in the world, but also, we utilize cycling to promote living a healthy lifestyle."
Men and women ride different courses in this race. The women's tour occurs entirely in Northern California and ends today in Sacramento.
This is the 12th year for the event.
Correction: An earlier version of this story gave the wrong length and time frame for the Amgen Tour of California race. KPCC regrets the error.