Advocating for trails and mountain biking in Boulder, Colorado since 1991

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Upcoming Events

Wed 26
Wed 26

RIDE: Knobby Wednesday

June 26 @ 5:45 pm - 7:30 pm
Thu 27

RIDE: Trails & Ale

June 27 @ 5:45 pm - 8:00 pm
Sat 29


June 29 @ 9:00 am - 4:00 pm
Sat 29

TRAIL BUILDING: Heil – Kid’s Trail Day

June 29 @ 9:00 am - 1:00 pm

BMA has a ton of great events happening all season. Join us!

Sign up for a trail building event to put your muscle to good use.

Join us on our three weekly rides – one for beginners, one for women of all levels, and one for intermediate to advanced riders.

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!

Super Summer Bike Bash 2019

Over 100 BMA members attended the annual Super Summer Bike Bash membership party on June 15, 2019 at Dale’s private farm and bike park in North Boulder.

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Join the BMA community

Join the BMA community