Home » **Annual Event**, *Top Pick*, Eating & Drinking, In Person, Kids & Families, Nature, Outdoors, Sports & Wellness

Marin County Bike Coalition “Dirt Fondo” Bike Race 2025

Dang! This event has already taken place.
>> Want to see our Top Picks for this week instead?
Saturday, July 19, 2025 - 6:30 am | Cost: FREE*
*Free to attend; registration required for riders.

Presidio Riding Club Stables | 901 Bunker Road Marin Headlands, CA 94965

Event Details

Wonder Juice™ 100% Organic Cold-Pressed Juices Proud Sponsor of the Marin County Bike Coalition Dirt Fondo on Saturday, July 19, 2025

 

Wonder Juice announces its sponsorship of the 13th annual Dirt Fondo, hosted by the Marin County Bicycle Coalition (MCBC). This epic ride, taking place on Saturday, July 19, 2025, celebrates the spirit of adventure in the birthplace of mountain biking.

Riders can choose from three scenic route options—45, 32, or 24 miles—selecting the distance that feels right for them. Participants are supported by friendly volunteers, energizer stations, course marshals, and fellow riders cheering each other on. The premier 45-mile off-road journey stretches from the Golden Gate to Mt. Tam and back, showcasing breathtaking scenery and a dynamic mix of trails, fire roads, and tarmac.

Along the way, riders will encounter four rest stops, staffed with smiling volunteers and stocked for refreshment and encouragement. On-course support includes world-class services such as marshals, mechanics, and SAG (Support and Gear).

The ride concludes with a lively post-ride celebration at the Presidio Riding Club Stables in the Marin Headlands—complete with camaraderie, horses, and refreshments. Register today and ride for the future of Marin’s trails.

Both sponsor and rider participation support MCBC’s mission to expand trail access, empower new cyclists and trail stewards, and protect Marin’s treasured off-road spaces.

As a sponsor and hydration partner, Wonder Juice will be providing all riders with one of two refreshing flavors: Watermelon Cucumber Basil and Watermelon Lemon Cayenne—both part of the Wonder Melon line. Made with 100% cold-pressed organic juice, non-GMO and Fair-Trade Certified ingredients, and no added water or sugar, Wonder Juice offers a “Curiously Good” taste experience that redefines healthy drinking. The Wonder Melon juices also honor National Watermelon Month, celebrated in July. These blends are packed with antioxidants known to support cardiovascular health and digestive wellness. Wonder Juice is available at Whole Foods Market in Northern California.

Michele Abo, General Manager of Kayco Beyond and Wonder Juice, shared:
“Wonder Juice—and especially our Wonder Melon flavor—is proud to support the great work of the Marin County Bicycle Coalition as a sponsor of Dirt Fondo. We hope riders enjoy Wonder Melon as a refreshing finish to the ride and a celebration of National Watermelon Month. Our mission is to provide healthy juice options that are 100% authentic, with no added water or sugar. Each blend is carefully crafted to ensure every sip of Wonder Juice is a delicious and nutritious, 100% organic cold-pressed juice experience.”

We are thrilled that Wonder Juice and the Wonder Melon flavors have teamed up with. Dirt Fondo and The MCBC to support our riders with the delicious, pressed juices, but also to support all that MCBC stands for to improve biking infrastructure, increase off-road trail access, expand our youth programs and host community events.” Said Sandy Allen, Event & Community Engagement Manager, Marin County Bicycle Coalition.

Other sponsors and supporters of Dirt Fondo include: JAMBAR, Spare the Air, Relevant Wealth, Mike’s Bikes, Dolan Law Firm, Osmo, Every Man Jack, California Marindad, Presidio Riding Club, REI Co-op, Golden Gate Market, Best Day Brewing, Velocio, Foot and Ankle Sports, Sports Basement, Violich Farms, Patagonia, GU, V Vehicles, and the Marin Amateur Radio Society.

For more information, visit www.drinkwonderjuices.com and follow Wonder Juice on:

  • Facebook: @drinkwonderjuices
  • Instagram: @drinkwonderjuice
  • TikTok: @drinkwonderjuices

About Marin County Bicycle Coalition
For 25 years, the Marin County Bicycle Coalition has worked to make Marin safer and more bike friendly. The organization champions cycling, advocates for improved infrastructure, and fosters a united cycling community. MCBC is a 501(c)(3) non-profit organization. Learn more at https://marinbike.org/dirtfondo/

Disclaimer: Please double check event information with the event organizer as events can be canceled, details can change after they are added to our calendar, and errors do occur.


Cost: FREE*
*Free to attend; registration required for riders.
Categories: **Annual Event**, *Top Pick*, Eating & Drinking, In Person, Kids & Families, Nature, Outdoors, Sports & Wellness
Venue: Presidio Riding Club Stables
Address: 901 Bunker Road Marin Headlands, CA 94965