⚠️All ride participants (members and non-members) must register online and agree to the liability waiver.⚠️

Mt. Diablo Challenge Ride

The grand Mount Diablo Challenge is scheduled for October 5, 2025, the first Sunday in October.

The Mount Diablo Challenge is a 11.2 mile timed cycling hill climb to the summit.

Details can be found at MountDiabloChallenge.org.