Dirty 30 Mountain Bike Race 2025
December 6
Dirty Thirty is a 30-mile mountain bike race (and other distances) hosted by Quick-n-Dirty at Sycamore Canyon Gooden Ranch in Lakeside, California. There are 12-mile race divisions, offering something for mountain bikers of all levels with its diverse range of classes and distances. The course is an 8.9 Mile-loop with 1,054ft of climbing per lap.