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


Public Input Meeting: Sweetwater Bike Skills Park

The County of San Diego Parks and Recreation Department invites the public to attend to give input on the design of the Sweetwater Bike Skills Park.  


Public Input Meeting: Sycamore Goodan Ranch

You’re invited to a meeting for the Public Access Plan for the Goodan Ranch/Sycamore Canyon County Preserve. 


Mountain Bike Ride and Festival from Performance Bicycle, Sorrento Valley

Join us for a fun and fabulous event with fully supported road rides and a MTB ride and Festival out of Performance Bicycle - Sorrento Valley! Food, fun and prizes! 

News Feed

CDFW Properties - NEW Lands Pass Program

January 4, 2018

California Department of Fish and Wildlife initiates Lands Pass Program

SDMBA hires Trail Designer for Orosco Ridge Trails Plan

December 27, 2017

After a competitive RFP process, SDMBA announces Drew Perkins Trail Consulting as Orosco Ridge Trails Plan designer.