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


VIP Member Event: Rock House Ride

Join SDMBA Board Member Jose Galaz as he leads a ride in his natural habitat at Rock House Trail, at the San Diego National Wildlife Refuge managed by US Fish and Wildlife.  M...


Public Meeting: Sycamore Canyon Public Access Plan

This is a second public access plan meeting put on by the County of San Diego Parks and Recreation. Your attendance is vital at this meeting to show support for trails and express ...


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...

News Feed

Special Offer for Members! Balance Insurance for Cyclists

January 30, 2019

Balance offers affordable injury insurance for cyclists. It’s like a helmet for your wallet.

2019 Archipelago Ride Registration Open NOW!

January 18, 2019

Aloha! Don't miss the tropical adventure that is #archride2019

Public Comment: Steel Bridge Staging Area

December 29, 2018

Letters of support needed for the new staging area proposed at the Steel Bridge in Rancho San Diego. Click link for details