2024 TUFF T-shirt

Our 2024 TUFF T-shirt design is here! Registrations before July 14, 2024 at 11pm PST are guaranteed a free shirt and a free pair of socks. All registrations after July 14 will receive items as supplies last.

Purchase your shirt on the BikeReg Merch page to secure your size preference as we'll prioritize the merch orders at check-in. BikeReg purchases will not pay shipping and pick-up is in-person. Sizing requests by July 14 will influence our final order count.

If you will not be at Mammoth TUFF, purchase your shirt online here and we will mail your shirt per the shipping details in your order when the inventory arrives.

4th of July Happenings

#MammothBikePark is now open for the season!



Kick off your 4th of July with Mammoth Track Club’s Annual Footloose Freedom Mile! This event is a one-mile road race staged before the Town of Mammoth Lakes Fourth of July parade on Old Mammoth Road. Proceeds go to the elite and youth divisions of the Mammoth Track Club.

Mammoth TUFF

September 13-15, 2024

Registration for Mammoth TUFF, BUFF, and Volunteers is open.

SEMBA PedalPalooza and Uptown Clean-up

SEMBA's PedalPalooza MTB event is Aug 17 at 8am! Sign up here and join us for the best XC course on the east side, now with a start/finish at Canyon Lodge.

Meet up with us in the afternoon for a Clean-Up Happy Hour on the Uptown Trail. Mammoth TUFF is the official financial and volunteer sponsor through Mammoth Lakes Recreation.

RSVP here for the Uptown Clean-up

New Hammerhead Karoo

The new Karoo from Hammerhead is now available. Now with 15+hours of battery life, you can fuel your most epic adventures and explore your range with confidence. The new Karoo is your ultimate ride companion for navigating and exploring your tuff.

Get yours from Competitive Cyclist here:

Pedal Pass

If you plan on riding on Mammoth Mountain trails this summer, remember to buy your Pedal Pass. This pass grants unlimited access to the bike park while skipping the lifts, gondolas, or shuttles. More info on the pass here.

Shop BELLWETHER'S 30% OFF 4th of July Sale and get your TUFF Gear