Celebrating 25 years of improving trail access for mountain biking in San Diego County

Over 1400 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.

Got Trail Work?  We do!  Volunteers needed.  Check all opportunities on our Event Calendar.  

Events Feed


Advocacy Committee Meeting

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

The Advocacy Committee is focused on pr...


San Diego Regional Bike Summit

Our objectives of the Summit are to bring together advocates, local and national leaders for bicycling, elected officials and more to share examples of successful projects, best pr...


Trail Maintenance - Noble Canyon

Join SDMBA volunteers as we continue our trail maintenance on Noble Canyon Trail.

Meet at Penny Pines at 8:30 am,...

News Feed

Bike Magazine tells story of Sweetwater Bike Park

January 13, 2020

Read about how Sweetwater Bike Park came to be so awesome!

Sweetwater Bike Park is OPEN!

January 5, 2020

9:30 - sunset daily (weather dependent) FREE

SDMBA partners with California Mountain Biking Coalition

November 22, 2019

California trails need a state wide voice and CAMTB is providing it!
Proud member of the California Mountain Biking Coalition  www.CAMTB.org