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Tour

Dirty Burro Mountain Bike Race

August 01 - August 03 2025
Big Bear Lake CA
Date Confirmed
 
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Distances: 50 km
Difficulty: Moderate terrain with rolling short steep hills or moderate, sustained climbs
Limited to: 3,000 or less Participants

We’re excited to announce the addition of a 50k mountain bike race to the Tour de Big Bear and continue the rich history of mountain bike racing in Big Bear!  Held the same day as the Tour de Big Bear, this fresh and exciting Cross Country mtb race is set to be unique, taking you through stunning mountain landscapes on a challenging yet enjoyable course with flowy single and double track trails. Starting at Bear Mountain resort and finishing near the North Shore, this inaugural event is destined to become a beloved annual favorite.

Final course will be released in July.

Conquer the Extraordinary

36 Challenging Miles: Embark on a thrilling 4-mile neutral roll out before plunging into fast and treacherous Singletrack and Double Track sections.
Dazzling Scenery: Relish in the stunning vistas of Big Bear Lake, a legendary backdrop for mountain bike racing.
Expect the Unexpected: Ride beneath towering pine trees and maybe catch the fleeting glimpse of Red Deer.
Historic Roots: Honor tradition by visiting Wilbur’s Grave. Pay homage to our original settler and seek fortune for your race. Some say placing a pine cone on his grave guarantees good luck!

Key Features

The Delamar Climb: Take on the infamous 11.6% grade climb that will test your endurance and invigorate your soul.
Strategic Aid Stations: Recharge at Mile 10, Mile 19.5 and Mile 26.25, crucial checkpoints on your journey.
Finish Strong: Experience the exhilarating rush, as you descend swiftly to the triumphant end in Holcomb Valley.
Surfaces (distances approximate)

9.6 miles paved, 27.3 miles single-track & double track

Elevation Gain: 3,177 ft, Loss: 3,494 ft

Seize this chance to etch your name in history and feel the rush of pure adrenaline. Prepare yourself and your gear, and get ready to tackle The Dirty Burro XC Mountain Bike Race.

Dirty Burro Mountain Bike Race

 
Start Located At: 43101 Goldmine Dr, Big Bear Lake, CA 92315
 
 
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Included

High Quality “Technical Performance Shirt”
Course support, Aid Stations and Medical Assistance
Awards to the top three overall Male and Female Finishers
Two day Cycling Expo filled with entertainment and fun family activities READ MORE
Opt-in for the Saturday morning family fun ride, perfect for all ages

 
Facilities
Parking
Toilets
Registration On the Day
Pre-Packet Pickups
 
Support for Participants
Route Signposted
First Aid
SAG Wagon
Escort / Police Escort
Roving Mechanical Support
 
Community
Volunteers
Bike Festival
After Party
Kids Fondo
Free Training Rides
Fundraising
 
Features
Course Timing
KOM/QOM Competition
Category / Race Prizes
Finishing Medals
Results Within 24 Hours
Photos
Downloadable GPS files
Finish Line Chute
 
Nutrition
Feed / Aid Stations
Post Event Meal(s) Provided As Part of Entry
Number of Aid Stations: 3
 
Number of Timed Hill Climbs
1 Hill Climbs