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Fat Tire CB 40


2021.. it’s ON! The Fat Tire 40 returns with the original course, the epic 40 + mile course on legendary Crested Butte singletrack. Don’t miss out on this classic event!


Custom Skis

ALL riders will be entered into a raffle to win a pair of CUSTOM ROMP Skis (must finish to be entered into raffle)

The race took a hiatus in 2020 due to Covid and is now back in 2021, but potentially with some changes due to County restrictions at the time of the event. This event is a fundraiser for the gO Initiative and is sure to be a day on the bike you won’t forget. Race day is June 26, 2021 and circumnavigates Mt. Crested Butte on some of the best singletrack Crested Butte has to offer. JOIN US for a fun weekend of bicycle riding!


Registration is OPEN! Click below to register: 

Click here to register


Packet PickUp:

Friday June 25, 3:00 pm – 6:00 pm

gO Orthopedics, 433 Sixth St, Crested Butte


Mandatory Racer Meeting:

Saturday June 26 @ 7:45am (start/finish area, CBCS school)

Review of course, aid stations, safety measures on course


The Route (ORIGINAL FT40 Course!)


Strava Cue Sheet here:


  • Neutral start (police escort) from CB Community School (service road; Whiterock up to 1st St; north on 1st; east on Elk Ave to Gothic Road
  • Up Gothic Rd towards Mt CB- race starts after crossing Wash Gulch Rd turnoff– police car will speed up here
  • Gothic Rd to Hunter Hill Rd (in Mt CB); Summit Rd to Upper Loop trailhead
  • Upper Loop to Upper Decker/Bridges to Upper Upper Loop to Brush Creek Rd
  • Brush Creek Road (738.2a) to Strand Hill climb
  • Strand Hill singletrack (556)
  • Strand Hill (556) to Canal Trail (408)
  • Canal Trail (408) to Brush Creek Rd (738.2a)
  • Brush Creek Rd (738.2a) to Deer Creek Trail (568)
  • Deer Creek Trail (568) to Gothic Rd (317)
  • Gothic Rd (317) to Meander (CBMR/Snodgrass trailhead)
  • Meander Trail/Primer to Old West Side Trail
  • Old West Side Trail to West Side Trail
  • West Side Trail to Happy Hour
  • Happy Hour to Upper Loop
  • Upper Loop to Tony’s Trail
  • Down Tony’s Trail to town
  • South on 9th avenue (left hand turn)
  • FINISH at CB Community School


Neutral Start

There will be a neutral start at out of Crested Butte Community School at 8:00 AM. Official race starts when police escort turns off at Slate River Road.


Aid Stations

There will be two aid stations fully stocked with water, energy bars and energy drink. Please note, you will have to fill up your own water bottle.

  • Aid station #1 (mile 14) – West Brush Creek Road, exit from Strand Hill
  • Aid Station #2 (mile 30) – Gothic Road, before left turn onto Meander


Race Day

Saturday June 26, 2021


Key Times

  • 8:00 am – Race Start, CBCS
  • 2:00 pm – Awards (TBA, closer to the race as Covid restrictions allow)


Awards & Beer

$2000 Cash Purse (top three male + female)

Awards Ceremony TBD – based on current Covid requirements


Directions, Parking and Shuttles

The start and finish will take place at the Crested Butte Community School.

From Denver- From Denver International Airport, take interstate 70 west, exit to highway 470 west, highway 285 south to Fairplay then Poncha Springs, highway 50 west to Gunnison, then highway 135 north into Crested Butte.

From Montrose- Take highway 50 east to Gunnison, then highway 135 north into Crested Butte

Parking There will be parking at CB Community School, or at the 4way stop.  Race will start and end at CBCS, so please plan accordingly.


COVID Restrictions

Gunnison County is currently in BLUE status.

Details can be found here:

We will update this page and send updates as things progress in Gunnison County. We may need to enact wave starts and/or make other changes. For now we are psyched to be able to bring this race back!