Take the challenge this summer and ride two of California's most spectacular bike rides - The Tour de Big Bear & Mammoth Gran Fondo!

The 2025 California Pass Challenge requires participation in the 2025 Tour de Big Bear and the 2025 Mammoth Gran Fondo.

2025 Tour de Big Bear - Saturday, August 2, 2025
2025 Mammoth Gran Fondo - Saturday, September 6, 2025

Participants who conquer both rides will receive an exclusive California Pass Challenge cycling jersey and unique race plates. Riders may choose from a number of ride options between each event, with special options for E-BIKE riders, and even adding in the option of the gravel routes from Tour de Big Bear.