Fall membership drive is here. Join or renew in October and win sweet prizes like a Yeti SB140!
Get Trail
Conditions
See Where
to Ride
Build
Trail
Join a
Group Ride
Take a
Skills Clinic
Become a
BMA Member
BMA has a ton of cool stuff happening all season.
Sign up for a trail building event to put your muscle to good use.
Join us on a group ride.
Learn how to take your mountain biking skills to the next level by attending one of BMA’s skills clinics.
See the other fun stuff we’re planning!
Upcoming Events
All The News…
BMA’s Commitment to Boulder’s Mountain Biking Community and Lefthand
BMA is focused on ensuring that Lefthand remains a unique and challenging area for advanced mountain biking by actively participating in the stakeholder process and working with the U.S. Forest Service and other groups to balance motorized and non-motorized recreation.
Joint Statement from BMA and Friends of Lefthand Trail Alliance on the USFS Lefthand OHV Management Study
By uniting our efforts, we believe we can achieve the best possible outcome—one that balances the needs of the riding community with the interests of other stakeholders, while ensuring that Lefthand remains the progressive riding area it is.
New Temporary Trail Access at Marshall Mesa Thanks to BMA’s Advocacy
BMA worked with the City of Boulder to get a temporary trail approved around the Marshall Mesa trailhead project worksite.
