Redwood Coast Mountain Bike Association

Redwood Coast Mountain Bike Association (RCMBA) is a 501(c)(3) nonprofit organization and chapter club of the North West Regional Division of the International Mountain Biking Association (IMBA), and is dedicated to building, maintaining, and advocating for sustainable mountain bike trails and bike parks in the Northern California region. RCMBA works with local land managers, governments, and the community to maintain and increase access for mountain biking in the region. It is our goal to promote opportunities that contribute to an active and healthy community.

2025 DREAMBIKE GIVEAWAY

RCMBA is teaming up with California Mountain Biking Coalition (CAMTB) and the legendary Ibis Cycles to celebrate California Mountain Biking Month and fuel the movement for more and better bike-friendly trails across the state.

Every $5 Donation = 1 Chance to win

80% of the donations made here go directly to RCMBA and our work maintaining, planning and building local trails. The remaining 20% supports CAMTB’s advocacy efforts at the state level for more and better bike friendly trails in California.

Grand Prize: Ibis Ripmo V3 GX build or choose any bike from the current Ibis lineup (any size), valued up to $7,200.

Click on the button below and donate $5 or more by June 30, 2025, 11:59 PM PT

Donate Here

UPCOMING IN 2025!

Blue Lake Bike Park

RCMBA has partnered with the City of Blue Lake to help raise funds for their new bike park. Work will begin again in Spring 2025! Help us make this project happen!

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McKay Bike Park

In 2025 Cam Zink, 2X Red Bull Rampage winner, and his crew at Sensus R.A.D. Trails are coming to town to break ground on an epic, one-of-kind bike park in the McKay Community Forest, Eureka, CA. We need your help to make this dream a reality!

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2025 RCMBA VOLUNTEER T-SHIRT

New for 2025! RCMBA needs volunteers! RCMBA members can earn this exclusive t-shirt by volunteering 40 hours throughout the year via trail work, events, or races. Volunteer hours will be tracked via Webscorer. One t-shirt per year. Keep an eye out for upcoming volunteer opportunities! See you out there!
2025 REDWOOD ROOTS ENDURO

The 2025 Redwood Roots Enduro is proud to be part of the 2nd Annual Coast to Cascade Gromduro Series which is an enduro mountain bike race series for ages 18 and under. The Redwood Roots Enduro is the last stop of the series on July 13th, 2025. Registration opens March 1st, 2025. See you on race day!

Register Now

Who is Cam Zink, Anyway?

Cam Zink is a professional mountain biker, two time winner of the Red Bull Rampage, and founder of Sensus R.A.D. Trails a registered 501c(3) organization with the goal of bringing progressive trails, bike parks, and community to the mainstream. Cam and his crew have been brought on board for the development and construction of the Mckay Bike Park in Eureka, CA! Stay tuned for upcoming volunteer opportunities!