28 Below Fat Tire Race | Black Hills & Badlands Events

28 Below Fat Tire Race

  • 28 Below Fat Tire Race
Event Date: 
Saturday, March 13, 2021 (All day)

The 28 Below Fatbike race is a 50k lolly-pop loop with around 2,800 ft of climbing. It is the only race in the Black Hills that is permitted to take place on groomed snowmobile trail.  Although the race takes place in mid-March, the snow conditions tend to hold in the high country of the hills.  This course will test your will and winter riding skill.  It is challenging and very remote, so we ask that you come prepared, with some experience fatbiking in winter conditions.

Equipment and items you should be carrying:

  • Bike with a minimum of 3.8" tires required, no smaller tires allowed.
  • Helmet is required for all riders
  • Suggested you have a warm, insulated, winter riding shoe, tennis shoes are NOT recommended
  • A variety of layers for warmth and to keep dry
  • A pair of warm, winter riding gloves (a pair of extra gloves as back up)
  • A headlamp for emergency
  • Insulated water bottles and camelback that will keep water from freezing
  • A spare tube and pump, with experience fixing a flat in cold winter conditions


Course Information:


The 50k lollypop loop starts and finishes at  Spearfish Canyon Lodge, near Spearfish SD and follows the groomed snowmobile trails that are permitted by the USFS. Race day is the only day of the year that riders are permitted on the groomed snowmobile trail here.  The first 10k is a beautiful stretch winding up a Canyon with a mild and gentle uphill grade.  The course then takes a turn into a more rolling section which eventually gets steeper and tops out at the beautiful Cement Ridge Fire Lookout, where every rider is required to check-in.  This is the only checkpoint/aid station on the entire course, where you will be provided with water and some food items.  From here you get to do a little descending until you run into what we like to call "Schoolhouse Snowpit".  This snowpit is just over a mile long and may consist of a lot of hike-a-bike, depending on snow conditions.  It is the only section of the course that is not on groomed snowmobile trail.  Once out of the snowpit, or Schoolhouse Gulch road, you will jump back onto snowmobile trail and back onto Roughlock falls rd, for a steady descent, which is a backtrack of the first 10k stretch you rode, that will take you back to Spearfish Canyon Lodge and the finish line.

Thanks to great sponsors and volunteers the race has been a big success with a fun after-party hosted right out of the beautiful Spearfish Canyon Lodge. Crow Peak brewery serves up free beer for all competitors, and many prizes are given out at the raffle thanks to Sram/Quarq, Twin Six, Fatback Bikes, 45 NRTH, Dirtbags Bikepacking, Endurelite, Rushmore Mountain Sports,

Two Wheeler Dealer, Acme Bikes, and Black Hills Vision Care!  We also have some great custom trophy's made by Clay Dykstra Pottery for the top finisher's as well as equal cash mens and womens for the overall winners along with special prizes from our sponsors at Quarq!

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