REGISTRATION IS OPEN FOR 2026!

Saturday, September 12
Mammoth Lakes, CA

REGISTER TODAY
2025 TIMED RESULTS
2025 RIDER PHOTOS

All of the proceeds from the Mammoth Gran Fondo go to support the educational and athletic programming of the Mammoth Mountain Community Foundation (MMCF); including grants and scholarships that improve the lives of youth throughout the Eastern Sierra.

LEARN MORE ABOUT MMCF

ROUTE OPTIONS

GRAN FONDO - 102 MILE
MEDIO - 70 MILE
PICCOLO - 42 MILE

GRAN FONDO RIDE TIPS

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

The California Pass Challenge is a package deal that includes your registration for the Tour de Big Bear in August and Mammoth Gran Fondo in September. Participants who conquer both rides will receive an exclusive California Pass Challenge cycling jersey and unique race plates.

CALIFORNIA PASS CHALLENGE

GRAN FONDO GUIDE AWARDS

We are honored to be recognized by the Gran Fondo Guide as one of the top ten Gran Fondos in North America….for the second year in a row!

A huge “thank you” to our staff, volunteers, sponsors, partners, and all the riders that join us every year for this epic ride in the Eastern Sierra.

GRAN FONDO GUIDE AWARDS

STAY ON OUR WHEEL

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View fullsize When life gets hard, keep on riding Sign up for a race at 8,000 ft. — they said, ‘don’t be scared’ — they said. Sign up for the challenge, link in bio
View fullsize With over 70 miles of closed roads on the 102 mile route option - the views of this bike ride are astounding with a special opportunity to ride these roads without cars that only really comes once a year! Registration for next year is already avail
View fullsize Another successful Gran Fondo!!!! Thank you to all who came out, we are always stoked to see you! ✌🏾 out for now and we will see you next year at the starting line 🚲 🚵‍♀️ Sign ups are open for next year on the website!!
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View fullsize Clear skies, a beautiful sunrise, and we’re ready to ride. Gran Fondo is a GO! Temps are crisp at the start (~40°F at 7:00, ~45°F at 8:30) and warming into the 60s–70s later in the day! A rockin’ day to ride! 🚵‍♀️
View fullsize UPDATE: Thanks to everyone who joined us for check-in and registration! Registration will remain open until 8pm tonight at Footloose. After a smoky start this morning, the winds helped clear some of the smoke, and tomorrow is forecasted to be similar
View fullsize Quick update for all riders!! We’re monitoring the smoke from the Garnet Fire. Here’s what you need to know: as of this morning, air quality is within safe range, and all event activities including pre-rides are a GO as planned. We will c
View fullsize Poppin’ wheelies where the air is thin and the views are endless 🚵‍♀️ who needs flat roads when the mountain call? A few more days until the race!! See you there 🚲 #roadbiking #race #granfondo
View fullsize Only eight more days until the 30th Anniversary of the Gran Fondo!! In honor of the 30th anniversary we have highlighted Brian McCulloch and the Sub-Six Peloton Experience. Brian McChulloch was a professional rider until he later became a successful
View fullsize 10 more days till the 30th Anniversary of Gran Fondo! Are you signed up?! Is your bestie signed up?! Tag your squad. We’re going the distance, are you? 🚲 🏔️
View fullsize Not only is this one of the most beautiful races you will ever ride, but it’s also one of the most fun afterparties you’ll ever attend! We all know, Mammoth does it right. Our afterparty will be in the village with a taco lunch, a beer te