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


Public Meeting - San Marcos Bike Park

Bradley Bike Park Public Meeting with the City of San Marcos
This project involves designing and building a bike skills progression park, so what features do you think the C...


Trail Maintenance - Indian Creek at Chamagne Pass

Attention riders: We need your help!! We will be working on the Indian Creek Trail near and west of Champagne Pass.

We will be riding to the trail work site. If yo...


Trail Work: Sycamore Goodan Ranch

Join us for trail work  at Sycamore/Goodan Ranch in coordination with the County of San Diego
Please RSVP at the SDMBA MeetUp Event Page HERE so we can ensure you are t...

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