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


Board Meeting

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


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...


11th Annual Bike the Bay with Off Road Option

Ride the bridge, Bike the Bay! Pedal around the San Diego Bay on August 26, 2018 and enjoy your only opportunity to ride across the San Diego-Coronado Bay Bridge. This non-...

News Feed

SDMBA members have access to Expert Voice discounts!

July 3, 2018

25% - 70% off your favorite outdoor brands! All for being a SDMBA member!

2018 Black Mountain Summer Update

June 26, 2018

SDMBA continues its strong alliance with the proud team of rangers at Black Mountain. While the 2017 build season was a bit of a bust due to a lack o...

Your input needed on San Diego Parks Master Plan Revision

June 8, 2018

Speak up for trails and parks - attend a public meeting