BIG BEAR LAKE, California (March 31, 2025) – Mountain biking enthusiasts have a thrilling new event to look forward to in 2025. The Big Bear Cycling Association (BBCA) has announced the launch of the Dirty Burro 50K XC Mountain Bike Race, set to take place on August 1-2, as part of the renowned Tour de Big Bear. This exciting addition to the cycling calendar promises a challenging yet breathtaking ride through some of Southern California’s most scenic and rugged terrain.
Building upon Big Bear’s storied history of extraordinary mountain biking, the Dirty Burro 50K continues the spirit of Big Bear mounting bike racing, offering participants the chance to tackle a unique and exhilarating XC course. With Big Bear Lake as a legendary backdrop, riders will enjoy breathtaking scenery and stunning vistas at the top of the San Bernardino National Forest.
A Challenge Like No Other
The Dirty Burro 50K builds on Big Bear’s reputation as a premier mountain biking destination. With a mix of technical single-track and fast double-track sections, the course will test riders’ endurance and skill. The 36-mile route begins with a 4-mile neutral rollout before taking cyclists through demanding trails that include the notorious Delamar Climb, boasting a steep 11.6% grade. Three strategically placed aid stations will provide support along the way, while the final descent into Holcomb Valley ensures an exhilarating finish.
Course Details & Registration
Riders will start at Bear Mountain Resort and traverse 50 kilometers of varied terrain, encountering an elevation gain of 3,177 feet and a descent of 3,494 feet. Competitors will have the chance to earn age group medals, overall finisher awards, and other prizes. The final course map and details will be released in July, but early registration is encouraged for those eager to secure a spot in this debut race.
Tour de Big Bear: A Legacy of Excellence
The Dirty Burro 50K is just one of many attractions at the Tour de Big Bear, which has earned recognition as one of North America’s top Gran Fondos. In addition to the new mountain bike race, the weekend will feature a two-day Cycling Expo, bike demos, live music, beer tastings, night Glow Rides, a Poker Ride, and a Family Fun Ride. With ideal summer conditions and diverse courses, Big Bear continues to solidify its reputation as a prime cycling destination.
Don’t Miss Out
Beyond offering an unforgettable experience for riders, the Tour de Big Bear also supports the local community. Since its inception, the event has contributed over $1 million to local charities and initiatives, further emphasizing its impact beyond the cycling world.
Cyclists looking to be part of history can register now for the Dirty Burro 50K XC Mountain Bike Race. More details and registration information can be found at tourdebigbear.com.
