Since 2013, Borealis has specialized in lightweight carbon fiber fat bikes. The tried and true, Carbon Fiber Crestone is our flagship model. 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.
HIGHLIGHTS
- Traditional fat bike geometry is both responsive and nimble for variable conditions in snow or sand.
- Standard features include: Eagle NX 12-Speed drivetrain, rigid carbon fork, carbon handlebars, carbon seat post and durable Sun-Ringle Mulefut rims.
- Tire clearance up to 26x5” and 27.5x4.5”.
- Compatibility for 100-120mm of suspension travel for increased comfort and control.
- Lightweight, durable carbon fiber frame comes with 2-3 bottle cage mounts and lizard skin protectors on both the down tube and drive-side chain stay.
- Available as frame only or as a frameset which includes a fork.
Frames include:
- Chainstay and seatstay protectors
- Seatpost collar
- Rear axle
- Derailleur hanger
Frame with Fork includes all of the above as well as:
- Fork of your choice
- Complete headset assembly with compression plug / star nut
- Front axle
All frames are covered by a LIFETIME warranty and crash replacement program.




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