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

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Upcoming Events

Tue 23


July 23 @ 5:15 pm - 8:00 pm
Tue 23

RIDE: Gurlz Ride

July 23 @ 5:45 pm - 8:00 pm
Wed 24
Wed 24

RIDE: Knobby Wednesday

July 24 @ 5:45 pm - 7:30 pm
Thu 25

RIDE: Trails & Ale

July 25 @ 5:45 pm - 8:30 pm

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 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!

Slay it Forward

SLAY IT FORWARD AND WIN! Each $1 donation to BMA’s Trail Fund gets you a chance to win a Specialized Stumpjumper Comp Carbon!

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