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

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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 one of our weekly rides – 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!

Upcoming Events

Tue 09

TRAIL BUILDING: Picture Rock

Tuesday, August 9 @ 5:15 pm - 8:00 pm
Tue 09

SKILLS CLINIC: August Women’s MTB Series

Tuesday, August 9 @ 5:30 pm - 7:30 pm
Tue 09

RIDE: Gurlz Ride

Tuesday, August 9 @ 6:00 pm - 8:00 pm
Wed 10

RIDE: Knobby Wednesday

Wednesday, August 10 @ 6:00 pm - 7:30 pm

All The News…

BMA’S COMMENTS ON OSMP E-BIKE EVALUATION

BMA’S COMMENTS ON OSMP E-BIKE EVALUATION

City of Boulder Open Space & Mountain Parks (OSMP) staff is asking the public to weigh in on allowing e-bikes on some city-owned open space land. Under consideration is 54 miles of soft surface multiuse trails open to bikes. Of these 54 miles, about 23 miles are...

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