Skip to main content

Show your love for the team here at Berkshire Bike and Board by leaving us a 5 star review on Google
Click here to leave a rating and review!

Your local bicycle shop of 28 years!
Shredding Since 1995!

Borealis Flume

Borealis Flume
  • Color: Matte Black & Yellow
  • Color: Seafoam & White
  • Color: Blue & White (Rigid Fork)
  • Color: Blue & White (Rockshox Bluto)
  • Color: Blue & White (Manitou Mastadon)
$1,999.99 - $2,159.99
$2,499.99 - $2,699.99
Please select options
This item is not eligible for shipping. Order online and pickup in-store for free. You will be notified when your order is ready to be picked up.


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 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.

Part Numbers

Option MPN Store SKU
Matte Black & Yellow / Small 2022-flume-black-s 210000069274
Seafoam & White / Medium 2022-flume-seafoam-m 210000065629
Blue & White (Rigid Fork) / Extra-Large flume-blue-xl 210000065635
Blue & White (Rockshox Bluto) / Large
Blue & White (Manitou Mastadon) / Large flume-mastodon-blue-l 210000065632