Advocating for Trails and Mountain Biking in San Diego Since 1994

Over 1100 members have stepped up to help SDMBA make mountain biking better for everyone in San Diego County. SDMBA advocacy volunteers provide a unified voice for trail users in public land use policies favoring sustainable outdoor recreational opportunities. Liaisons, trail builders, and other advocates seek out and build harmonious unified alliances and partnerships with businesses, land managers, and communities. Specialized volunteer-run programs support this mission and further inspire youth to explore and learn about nature and become its future stewards.

Events Feed


SDMBA Advocacy Committee Meeting

Monthly SDMBA Advocacy Committee meetings are generally on the 1st Monday of the month, 6:00 pm to 8:00 pm.

The Advocacy Committee is focused on presenting opportuni...


Board Meeting

The monthly Board Meetings are generally held on the 3rd Wednesday of every month at Mission Trails Regional Park, Visitor’s Center Library.  

Board meeti...


Ride the Rancho

Step back in time and ride through a landscape few have experienced. Explore rolling hills with majestic oaks trees. Ride past adobe ruins over 150 years old and areas untouched by...

News Feed

SDMBA partners with the Canyon Belgian Waffle Ride for 2019

November 15, 2018

The Canyon Belgian Waffle Ride announces the San Diego Mountain Biking Association as charity partner for 2019!

Seeking Board Member Applicants

October 18, 2018

SDMBA currently has one open Board seat and is looking for applicants. Please contact Kevin Loomis at if interested.

Recap: 2018 Mount Laguna Trail Fest presented by ZOIC Clothing

October 16, 2018

An amazing time in the forest playing bikes!