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Inventory subject to in-store stock. Please call, chat or email for the most up-to-date availability. 

Borealis Fat Bikes Crestone GX Rigid Fork

Borealis Fat Bikes Crestone GX Rigid Fork
  • Color: Metallic Red and White
  • Color: Midnight Matte Blue and Bronze
$3,600.00 - $4,000.00
Please select options
NOTE: "In store" availability on bicycles includes bikes fully built and bikes still in boxes. Please contact us via the live chat icon at the bottom of the page or call us at (303)444-4196 to confirm build status. ----------------This item is not permitted to be shipped, however it can be purchased online and picked up at your convenience. We are currently also offering City of Boulder Home Delivery for $10 on any purchase under $100 and free for anything over.

To use our $10 Local Delivery service, select it while viewing your cart or during the checkout process.
Please call us at 303-444-4196 with any compatibility questions! We are always happy to help.


Since 2013, Borealis has specialized in lightweight carbon fiber fat bikes. The tried and true Crestone is our flagship model, weighing only 25 pounds with standard options. Its frame geometry is optimized for riding in snow and sand with clearance for up to 5” wide tires. Paired with the most technically advanced components in the industry, the Crestone sets the standard for premium quality carbon fiber fat bikes.


-Traditional fat bike frame geometry is both responsive and nimble for variable conditions in snow or sand.
-Standard features include: Eagle GX 12-Speed drivetrain, rigid carbon fork, carbon handlebars, carbon seat post, lightweight --HED Alloy wheelset and internally routed cables.
-Tire clearance up to 26x5” and 27.5x4.5”.
-Compatibility for 100-120mm of suspension travel for more technical riding.
-Lightweight, durable carbon fiber frame comes with 3 bottle cage mounts and lizard skin protectors on both the down tube and drive-side chain stay.


Frame Borealis Crestone Carbon
Fork Borealis Carbon Rigid Fork
Headset Borealis
Rims/Wheels HED Alloy 27.5 x 80mm
Hubs DT Swiss
Spokes Wheelsmith Black
Tires Maxxis Colossus 27.5 x 4.5
Crankset SRAM Eagle GX, Arms: 175 Alloy
Chainwheel 30 Tooth
Bottom Bracket SRAM DUB 100mm
Chain KMC X12
Rear Derailleur RD EGX 1 x 12
Shifters SRAM EGX
Handlebars Borealis Carbon Bar (35mm)
Tape/Grips Ergon GA30 or Ergon GP 10L
Stem Borealis 50mm or 70mm
Brakes SRAM - Select
Saddle Borealis
Seat Post Borealis Carbon Seatpost (31.6mm)
Accessories & Extras DT/CS Protector: Lizard Skins

* Subject to change without notice.

Part Numbers

Option MPN Store SKU
Metallic Red and White / Large 23596 210000023596
Midnight Matte Blue and Bronze / X-Large 25024 210000025024