Conquer technical trails and global competition at NorCal’s premier UCI mountain bike showdown!

The 2025 Scotts Flat Lake UCI C2 is a fast-rising cross-country mountain bike race held on October 13, 2025, in Nevada City, California. It anchors the California DIRT Mountain Bike Series and debuts as the first UCI-sanctioned event at Scotts Flat, welcoming international competitors. Organized as a fundraiser by the YBONC Foundation, the event energizes both pros and amateurs, offering a dynamic weekend festival with short track, enduro, and XC racing across a technical, forested singletrack course. Expect fierce competition, regional pride, and a vibrant festival atmosphere.

The course is a 3.1-mile (per lap) technical singletrack featuring berms, jumps, and forested sections. Riders face demanding downhill and climbing stretches with challenging turns and features, designed for fast-paced XC racing.

• UCI C2 status, attracting elite international riders competing for ranking points
• Weekend-long festival including short-track and enduro events
• Cash prizes for Pro classes and podium medals
• First year Scotts Flat Lake hosts a UCI event
• Supports youth cycling programs through YBONC Foundation