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, it’s the ultimate test for cyclists eager to push their limits—whether you’re tackling your first century or chasing a new personal record. This endurance cycling event highlights Arizona’s diverse beauty while traveling on sections of the longest continuously used road in the country. The remote course has multiple distances suitable for all ages and experience levels, and draws a vibrant, diverse community united by a passion for gravel riding. 107 mile, 63 mile, 45 mile, 23 mile options.
