MAMMOTH GRAN FONDO
RIDER GUIDE
Everything you need to be ready for the Mammoth Gran Fondo is on this page.....well, not everything, only you can get those legs ready for these amazing rides!
See below for race day information, packet pick-up, rest stops, on-course support, pre and post ride events, and more.
A limited number of printed rider guides will be available for referencing at check-in.
MEET THE ORGANIZATION BEHIND THE MAMMOTH GRAN FONDO:
MAMMOTH MOUNTAIN COMMUNITY FOUNDATION
Welcome to the 30th Anniversary of the Mammoth Gran Fondo!
Celebrating three decades of high-altitude adventure, the Mammoth Gran Fondo returns this year as one of California’s most iconic cycling events. With sweeping views of the Eastern Sierra, fully supported routes, and a legendary post-ride party, this fabled ride is more than just a race—it’s a movement. The Mammoth Gran Fondo proudly benefits the Mammoth Mountain Community Foundation, supporting youth athletics and academics throughout the region. As a rider, you’re not just chasing miles—you’re helping build a stronger, healthier future for kids in our mountain community. We encourage all participants to set up their own fundraising pages and rally friends and family to support this important cause. This guide contains everything you need to ride, fundraise, and celebrate with purpose.
Have the ride of your life!!
Tom Bissell
Executive Director, MMCF
QUICK ACCESS INFORMATION
While we strongly recommend that you take the time to read through the entire Rider Guide, we totally understand that you might need quick access to a couple of key pieces of information right away. See below for some links to what we think are the most needed items you will have.
RACE DAY INFORMATION
GRAN FONDO (102 Mile Route)
Corral Opens = 6:30am
Mass Start = 7:00am
Rider Start Cut-Off = 7:30am
Rider Finish Cut-Off* = 5:00pm
MEDIO (70 Mile Route)
Corral Opens = 8:00am
Mass Start = 8:30am
Rider Start Cut-Off = 9:00am
Rider Finish Cut-Off* = 5:00pm
PICCOLO (42 Mile Route)
Corral Opens = 8:00am
Mass Start = 8:30am
Rider Start Cut-Off = 9:00am
Rider Finish Cut-Off* = 5:00pm
*Timing ends at rider finish cut-off.
KOM/QOM - GRAN FONDO
We have added a KOM/QOM at the climb up Wildrose Summit. Keep an eye out for the sign and ensure you pass through the KOM/QOM zone to get a time.
KOM/QOM will end at 12:30 pm in order to be prepared with results in time for Awards.
KOM/QOM - MEDIO
We have added a KOM/QOM at the climb up Watterson Summit. Keep an eye out for the sign and ensure you pass through the KOM/QOM zone to get a time.
KOM/QOM will end at 12:30 pm in order to be prepared with results in time for Awards.
OFFICIAL FINISH CUTOFF TIME
All routes will close at 5:00pm - riders must be finished by this time.
We strongly recommend that riders choose the route length they are confident they can complete.
Any riders that are still on course at 5:00pm will be required to load into a sweep van and be returned to finish line at The Village.
There will also be transport vans departing the Whitmore Rest Station for any riders that do not feel as though they can complete the route.
2:00pm + 3:00pm + 4:00pm + 5:00pm
RACE DAY PARKING
Riding to the start is highly encouraged, as parking is limited. There is a paid parking lot available on Minaret Road across from The Village.
REST STOP INFORMATION
All of the Mammoth Gran Fondo route options have plentiful rest stops that are fully stocked with a wide variety of drinks and snacks. Check out the Rest Stop Information page for detailed breakdowns of what is offered at each rest stop.
LEAVE NO TRACE
Course Clean-Up Etiquette
This is a Leave No Trace event. As stewards of the land, we each hold the responsibility to keep our environment pristine by cleaning up after ourselves. All rest stops are equipped with trash bins, so please carry all trash until you can dispose of it at the next rest stop. DO NOT throw any gels, tissues, or trash on-course as there is no trash pick-up between rest stops.
Accidents happen—sometimes a wrapper might slip out of your pocket. If you see any litter on the ground, show kindness by picking it up. Let’s all contribute to maintaining the beauty of our ride.
EVENT SCHEDULE
Check out the Event Schedule for a complete breakdown of all the excitement throughout the long weekend of the Mammoth Gran Fondo.
PACKET PICK-UP
Packet pick-up is offered at Footloose Sports in Mammoth Lakes on the following days and times.
THURSDAY, SEPTEMBER 4
12:00PM - 8:00PM
FRIDAY, SEPTEMBER 5
12:00PM - 8:00PM
Please be sure to bring a photo ID.
Each rider must pick-up their own packet - no exceptions.
Riders under the age of 18 must have their parent/legal guardian with them to sign the waiver.
FOOTLOOSE SPORTS
3043 Main Street
Mammoth Lakes
PRE + POST RIDE EVENTS
Make sure to check out the information below for details about all the great pre and post ride events we are hosting.
GROUP RIDES
Join us for some amazing (and chill) group rides on Thursday and Friday out of Mammoth Lakes. These rides are free and a great way to get in some extra riding and preview sections of each route.
POST-RIDE PARTY
After you finish your ride, we will have an awesome meal, vendor village, and party waiting for you.
GEEK OUT ON THE ROUTE DETAILS
Don't worry, we do it too....we love to geek out on all the stats so we can build a "plan of attack" for these bigger rides; when are the big climbs, how hard are they, where are the rest stops....we get it.
Check out the links below for details on all the Mammoth Gran Fondo routes.
GRAN FONDO ROUTE - 102 MILES
Be aware of wild horses on the Hwy 120 section of the closed course.
Be alert for wild animal movement throughout the course.
All riders must carry the necessary items to fix a flat or handle minor mechanical issues.
Unchained Bicycle Garage will have three vehicles on course, but do not rely on SAG support. Riders should be self-sufficient and bring everything needed to complete the route.
Benton Crossing Road will re-open with a rolling open in the afternoon based on rider locations on course.
MEDIO ROUTE/PICCOLO ROUTE - 70/42 MILES
From the start, CHP will lead riders out to Scenic Road. Once on Scenic Road, the course is open to traffic. Riders must stay to the right and not cross the centerline.
Be alert for wild animal movement throughout the course.
All riders must carry the necessary items to fix a flat or handle minor mechanical issues.
Unchained Bicycle Garage will have three vehicles on course, but do not rely on SAG support. Riders should be self-sufficient and bring everything needed to complete the route.
Benton Crossing Road will re-open with a rolling open in the afternoon based on rider locations on course.
ON-COURSE SUPPORT
Make sure to take the time to familiarize yourself with how to access the On-Course support before your ride.
BIKE TUNE-UP AND SERVICE
Unchained Bicycle Garage will be at Footloose Sports offering their services to all riders to get their bikes ready for the Mammoth Gran Fondo. Services are offered on a walk-up and first-come first-served basis.
Unchained Bicycle Garage at Footloose Sports
Friday, September 5
Open for Service = 10:00am
Last Bike = 7:00pm
Mammoth Gran Fondo Special - Drivetrain Tune - $49
Includes adjusting the front and rear derailleurs, clean and lube chain, wipe/light clean of derailleurs and cassette.
FREE Bike Safety Check
The UGB Team will provide you with a quick and thorough check of your bike; including:
handlebar bolt properly torqued
crank bolts properly torqued
saddle properly torqued
brake pad check
chain check