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

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Upcoming Events

Wed 18

RIDE: Knobby Wednesday

September 18 @ 6:00 pm - 7:30 pm
Thu 19

RIDE: Trails & Ale

September 19 @ 5:30 pm - 7:00 pm
Thu 26

RIDE: Trails & Ale

September 26 @ 5:30 pm - 7:00 pm
Sat 28

TRAIL BUILDING: National Public Lands Day at West Magnolia

September 28 @ 9:00 am - September 29 @ 4:00 pm
Oct 23

EVENT: East End Endurance Social

October 23 @ 6:00 pm - 10:00 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!

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