Held each year in Chino Valley, the Chino Grinder is Arizona’s original and longest running gravel cycling event. It brings together hundreds of cyclists from across the Southwest for a day of adventure, challenge, and community in the heart of northern Arizona. Celebrated as Arizona’s oldest and most iconic gravel grinder, the Chino Grinder has earned its reputation as the toughest gravel race in the West. Traversing 75–95% unpaved terrain, this endurance cycling event highlights Arizona’s diverse beauty while traveling on sections of the longest continuously used road in the country. The remote courses include a 23-mile Fun Grind, a 45-mile Fine Grind, a 63-mile Half Grinder, and the 107-mile Full Grind.