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Borealis Flume 12s / Custom Spec w/ Carbon Fork

Borealis Flume 12s / Custom Spec w/ Carbon Fork
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***Note, these are custom spec, chosen and built in-house. The pictures are for reference only. We have chosen to go without suspension since the large tires do an excellent job of providing "free" suspension with lower maintenance.

The Borealis Telluride is a fat bike that can attack every trail, all year long. The Telluride is designed and equipped with single-track riding in mind, allowing riders more value from their fat bike. Its frame geometry is optimized for 3-4" wide tires in both 29" and 27.5" diameter. A slacker head tube angle and longer wheelbase give riders a more controlled and planted ride.
With premium frame quality and only the best components, the Borealis Flume offers the best value on the market. This expedition-ready fatty mirrors the Flagship Borealis Crestone geometry, but does so in lightweight, 6000-series aluminum. Up mountains, down glaciers, and across deserts - the Flume is ready for action. There are all kinds of alloy fat bikes on the market, but none with the Flume’s purebred heritage and durability.


-Traditional fat bike geometry is both responsive and nimble for variable conditions in snow or sand.
-Eagle NX 12-Speed drivetrain, rigid alloy 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
-Lightweight, 6000-series aluminum frame comes with 3 bottle cage mounts, rear rack mounts on seat stays and Lizard Skin protectors on both the down tube and drive-side chain stay.


Frame Borealis Flume - Alloy
Fork Borealis Rigid Fork - Carbon
Headset Borealis
Rear Shock NA
Rims/Wheels Mulefüt 27.5 x 65
Hubs Borealis: Front 15×150 Rear 12×177
Spokes Wheelsmith - Black
Tires Maxxis Collossus 27.5 x 4.5
Crankset SRAM Eagle NX
Chainwheel 30T
Bottom Bracket SRAM DUB 100mm
Chain KMC X12
Front Derailleur NA
Rear Derailleur SRAM NX 12 Speed
Rear Cogs SRAM PG 1230 11-50
Shifters SRAM NX 12 Speed
Handlebars Borealis Carbon Bar -35mm
Tape/Grips Ergon GP 10L Ergo Paddle Grips
Stem Borealis - 70mm
Brake Levers SRAM Level T
Brakes SRAM Level T
Pedals NA
Saddle Borealis
Seat Post Borealis - Carbon (31.6mm)
Accessories & Extras Lizard Skins DT & CS Protectors
Weight 28.91 lbs - Large

* Subject to change without notice.