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Borealis Flume GX-1 with 100mm Rockshox Bluto Fork

Borealis Flume GX-1 with 100mm Rockshox Bluto Fork
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Fatbiking adventurers know that inspiration matters, and a ride (or bike) is only as good as the idea that created it. The expedition-ready Flume capitalizes on all the sweetness of the Crestone, 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. The custom tubeset mates ideal, high-performance geometry with competition-ready spec. But if pedaling across our blue planet is more your speed, the Flume will speed you through.


Frame Borealis Flume lightweight 6066 alloy frame
Fork 100mm Bluto Rockshox Fork
Headset Cane Creek 40
Rims/Wheels Turnagain FR80
Hubs Borealis. Front 15x150 Rear 12x197
Spokes Wheelsmith Black DB
Tires Maxxis Colossus 26x4.8 120 TPI
Crankset Race Face Aeffect Cinch 30t 175mm
Chain KMC X11
Rear Derailleur SRAM GX 1x11
Rear Cogs SRAM XG-1175 10-42
Shifters SRAM GX 1x11
Handlebars Truvativ Noir T40 Flat Bar
Tape/Grips Ergon GA2
Stem Race Face Evolve
Brakes SRAM DB5 w/Centerline 160/160mm rotors
Saddle Ergon SME30 EVO
Seat Post Truvativ Noir T40

* Subject to change without notice.