Enjoy the beauty of the San Francisco Peninsula by bicycle!

The 24th annual Bike 4 Breath is more than just a cycling event. It's a day full of fun where riders of all levels come together to support clean air and healthy lungs.  Cyclists raise funds for asthma education, tobacco control, clean air advocacy and lung disease research in support of the work of Breathe California Golden Gate Health Partnership and Breathe California of the Bay Area. Read more about our organizations and our work here.

This year, Bike 4 Breath will start and end at Menlo-Atherton High School in Atherton. Three route options include a family friendly 10 mile route, a 30 mile intermediate route, and a challenging 64 mile route for the cycling enthusiast. View our event details for the full scoop!

View and download a Bike 4 Breath Press Release

Get Involved:

B4B Father Son Register as a participant and fundraiser! 
While we don't require any fundraising minimums, we encourage all riders to fundraise at least $100.  Plus, the more you raise, the more you gain!  We're planning on great incentive prizes from cycling jerseys to plane tickets!  Sign up for the ride now.

REGISTERED RIDERS: Here are some downloads that will help you get started with your fundraising efforts:

- Bike 4 Breath Fundraising Packet
- Team Captain Tip Sheet

B4B Divas Start a Team!
You and your teammates can ride together and collectively raise awareness for our cause. Corporate teams can receive discounted registrations.  Past corporate teams include Life Technologies, InterMune, Google, Yahoo and Genentech. Create your team (and sign yourself up) now!
B4B Team Lungs

Looking to support Bike 4 Breath or Breathe California without getting on a bike?

Donate to a rider, team or directly support the event

Register as a "Virtual Rider" for only $10! Join your cycling friends and help them reach their team fundraising goal! You can use our online fundraising tools to support Breathe California's work!

B4B volunteer Volunteer!
Our riders need your help and support on the course.  There are many opportunities for aid station volunteers, course marshalls, and more.  Learn more