Tour de Big Bear Launches Mountain Bike Race

Happening in “Southern California’s Cycling Capital”, August 1-2, 2025

The Big Bear Cycling Association (BBCA) is excited to unveil the latest addition to the renowned Tour de Big Bear: the all-new “Dirty Burro 50K XC Mountain Bike Race.” Set to take mountain biking enthusiasts through some of California’s most picturesque and challenging trails, this race is poised to become an annual favorite.

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 race will cover a thrilling 36 miles, starting with a 4-mile neutral rollout before immersing riders into demanding single-track and double-track trails. Key features include the infamous Delamar Climb, with its heart-pounding 11.6% grade that promises to test even the most seasoned cyclists. Three aid stations strategically placed to ensure that participants can refuel and recharge, while the final descent into Holcomb Valley offers an epic finish.

Course Details & Registration

The Dirty Burro 50K will commence at Bear Mountain Resort, culminating near the North Shore. Participants can expect 50 kilometers of rugged single-track and double-track trails, with an elevation gain of 3,177 feet and a total loss of 3,494 feet. Riders will be awarded with age group medals, overall finisher awards and more, visit the website for specifics. Final course specifics will be released in July, and riders are encouraged to register now to secure their spots and begin preparations for this remarkable event.

Tour de Big Bear: A Legacy of Excellence

The Dirty Burro 50K is part of the broader Tour de Big Bear, a leading Gran Fondo in North America, renowned for its incredible organization and scenic courses. Having earned the title of number one in 2023 and frequently ranked among the top 10 by the Gran Fondo Guide, the event continues to elevate the cycling experience with new races, bike demos, and activities. The weekend also features a two-day Cycling Expo with live music, Bikes & Brews beer tastings, optional night Glow Rides, a Poker Ride and Family fun ride, ensuring an unforgettable experience for all.

With its ideal summer biking temperatures and diverse terrain, Big Bear is the perfect setting for both amateur and professional riders seeking to conquer new challenges and enjoy the thrills of SoCal altitude mountain biking.

Don’t Miss Out

Be part of history and join the inaugural Dirty Burro 50K XC Mountain Bike Race. Stomp the pedals, feel the adrenaline, and make your mark in the annals of Tour de Big Bear legend. PLUS, you’d be contributing to the positive impact that the Tour de Big Bear makes on the community. Since inception, the event has donated over $1 million to local charities and events.

Visit the website for more information about the Dirty Burro 50K.

Learn More & Register

About Big Bear Cycling Association: The Big Bear Cycling Association is dedicated to promoting cycling in the Big Bear Lake region through events, advocacy, and education. The Tour de Big Bear stands as a testament to BBCA’s commitment to creating unforgettable cycling experiences while enriching the local community. Learn more at: https://bigbearcycling.com/

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