May 22nd, 2016 Ride starts in: Day ::
Online registration is now closed.
We will have on site registration available the morning of the ride.
The Sonoma County Backroad Challenge is an annual fundraising project of the Petaluma Sunrise Foundation. The Petaluma Sunrise Foundation, a 501(c)(3) Charitable Foundation, was established in 2010 by the Rotary Club of Petaluma Sunrise. Your participation in the Backroad Challenge as a rider, sponsor, volunteer or vendor allows us to continue to do great things for the community and internationally.