Sale! Borealis Flume Frame / Frameset View larger

Borealis Flume Frame / Frameset


THE FLUME:  Simply the best equipped aluminum Fat Bike on the market

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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 Flumeā€™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.


-The Flume is built on an alloy frame that draws on all of our experience in making fat bikes at a much lower price.

-All aluminum frame with careful attention to finish details

-Borealis unique geometry for the best ride experience

-Available in two colorways

-Reduced stand over height

Frame includes:

-Chainstay and seatstay protectors
-Seatpost collar
-Rear axle and derailleur hanger

Frameset includes all of the above as well as:

-Complete headset and compression plug/ star nut
-Front axle


Based on our research, riders at the heights below will usually take the corresponding frame size. If you're at a transitional height that spans two sizes, look at the geometry chart to get the Stack and Reach you like based on other bikes you are comfortable on.


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Borealis Flume Frame / Frameset

Borealis Flume Frame / Frameset

THE FLUME:  Simply the best equipped aluminum Fat Bike on the market

Write a review

Product Options
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Color    * Required
Pick up
Canpar Ground Delivery 1-5 Business days
[Add CAD$40.00]
Frameset Option
Carbon Rigid Fork Matte Black
[Add CAD$450.00]
Carbon Rigid Fork Orange
[Add CAD$450.00]
Rock Shox Bluto RL 100mm
[Add CAD$699.00]
Lauf Carbonara Fat Bike Fork Suspension Glossy White
[Add CAD$799.00]
Lauf Carbonara Fat Bike Fork Suspension Matte Black
[Add CAD$799.00]
Carbon Rigid Fork Glossy Black
[Add CAD$499.00]
Carbon Rigid Fork Glossy Blue
[Add CAD$499.00]
Wren Inverted Fat Bike Suspension 110mm Travel / 150mm Spacing
[Add CAD$699.00]
No Fork/Suspension

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