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


Women Ride IB (Imperial Beach) 2018

Our 2nd Annual Women's Ride! Choose from a road route or a mountain biking route! 

Designed to inspire and engage more women from across all parts of San Diego ...


SDMBA MTB Travel Night

Join SDMBA for a FREE informational evening about traveling domestically and internationally with your mountain bike!  Exciting destinations, cool tips and rad trails awa...


Take a Kid Mountain Biking Day

Come get #morekidsonbikes with SDMBA and Team Ninja!  This free event encourages communities around the world to join together and ride mountain bikes with youth. The goal is ...

News Feed

Update on Mission Trails Regional Park Master Plan

August 30, 2018

Check out the Vlog of Kevin Loomis - President of SDMBA and the multiuse CAC rep for Mission Trails Regional Park. Kevin discusses where we are with...

SDMBA Hires Trails Coordinator

August 13, 2018

SDMBA Hires Ben Stone as SDMBA first ever Trails Coordinator!

Mount Laguna Trail Fest presented by ZOIC - REGISTRATION OPEN NOW

August 2, 2018

Ride - Camp - Laugh - Repeat! October 12-14, 2018. Register today!