This is where you find out all about the nitty-gritty.

About - What is TUFF?

Event Schedule

The Riders Guide, Bible, Tech Guide... READ IT!





Visit Mammoth

Uptown Volunteer

Frequently Asked Questions

Can I ride my Mountain Bike (MTB)?

Yes, your MTB will be fine at the TUFF.

Where will the start/finish be located?

The Start/Finish will be on Canyon BLVD. next to the Village at Mammoth (6201 Minaret Rd, Mammoth Lakes, CA 93546).

Can I defer or transfer my entry?

The short answer is NO. We recommend you register when you are confident you can make the travel but the event is only open to 850 riders.

Can I cancel or get a refund for my entry?

No. Thanks for understanding. 

Will there be awards

Awards are given only to the TUFF-est (one person at the top in each category on both courses). The ceremony will be saved for the morning after, Sunday, September 19, 2021. We will keep you updated on this plan but the idea is for all the TUFF to stop back in and share their stories with other members.

Will there be a party?

The Plan is to have a Party but stay tuned event updates based on how we will operate. Otherwise, the plan is to team up with OKTOBERFEST so when you return you can cash in your food and beverage tickets for some German treats.

Will there be aid stations?

YES! There will be enough neutral aid stations to get through both courses but you will be required to carry at least 3-5hrs of fuel at a time.
For the LONG COURSE, expect at least two aid stations. 
For the SHORT COURSE, expect at least one aid station. 
There will be water and offered calories will be explained in the Rider Guide.

Are support crews required?

For the LONG COURSE, they are not required but we will have space for them to meet you at the southern most part of the course. There will be an aid station at this location, so the support crews are not required.
For the SHORT COURSE, support crews are not allowed for safety of the riders. It will also prepare riders to take on the long course in the future. 

Do I need a backpack?

It is recommended you carry a pack or some sort of bags on your frame, bars, etc. that allow you to carry a minimum of 2 Liters (67OZ) of fluids, 4hrs of nutrition, and extra clothing (you will be in the Owens Valley and things can change quick).

Will it be hard?

YES! You are at altitude, riding in TUFF, and have a good amount of climbing throughout the day... If it was not TUFF we would not have used this as training grounds for two DK200 (Now - Unbound) wins and more.

When will the course be released?

The full courses will be announced Monday, September 13, 2021.
Watch @gravelbikecalifornia's video for a good look at sections of the route(s).

Will the course be marked?

We will mark major intersections/turns, otherwise it is gravel navigation is part of the adventure. GPX files of the courses will be released the week before the event. 

Is there a neutral roll-out?

Yes. We will roll out from the start in a neutral formation for about 6.5 miles (Long Course) and 3.5 miles (Short Course) for safety and allow natural selection on course from there.

Where will I find all the specifics to prepare and plan for the event?

The TUFF Rider Guide will have all the specifics of the event with all these questions answered again and more. It will be released on August 22, 2021. 

I would like to register but I am not confident I will be able to attend due to financial or travel restrictions?

As of April 2021, we recommend you wait to register or get on the waiting list until you have more confidence. Otherwise, for those planning to attend we welcome you to register and will hold the registration cap to 850 total riders.

I would like to register but I need more time to make a decision and I am concerned the event will sell out?

Please check the Who’s Registered” tab on BikeReg. This will inform you of registered field size compared to the limits of 250 for the short course and 600 for the long course. As the event approaches and your confidence to register develops, you can monitor field size there to make a more informed decision.

What if you cancel the event due to COVID-19?

If we announce a cancellation, we will provide all necessary details about your registration at that time. If this is an unfortunate reality, we will do our best to set our sights on 2022 and ask our registrants to do the same.

Tire recommendations? 

As wide as your frame will allow!
38's will suffice, but we recommend 40 and above. Knobby tires that roll well are recommended.
Amanda's favorites are 700x 42's and 48's

How much climbing will there be? 

Estimates of 2,000 feet for the short course and 8,000 feet for the long course. 

Will there be time cutoffs?

The short answer is Yes! The Riders Guide will have all the specifics of the schedule and time cutoffs when we release it in August.

Are E-Bikes allowed?

We are happy to say we opened up an E-bike category. E-Bikes will be allowed to ride on the short course only. If they are a category 1 - pedal assist and can hold a charge for 4 - 5 hours. There will be no prizes for this category as it is just one group.

What are your Gearing recommendations?

If 2x we recommend something like a Shimano GRX crankset, or similar, with a 48/31 tooth chainrings and a 11-34 cassette.
If 1x we recommend a 40 tooth chainring with at least a 11-40 cassette but an 11-46 would be better.
*Note: We are saying a 1:1 ratio or easier. It is a long day at altitude.
Here is a good article on BikeRadar about Gravel Bike setups, focus on the Chainring, Cassette, and 1x or 2x sections.