BOREALIS

Since 2013, Borealis has specialized in lightweight carbon fiber fat bikes. The Crestone is their tried and true flagship model. The frame geometry is optimized for riding in snow and sand with clearance for 27.5" rims with 4.5" wide tires.

The Flume Select provides unparalleled value for a fat tire bike. Perfect for riding in snow, sand, gravel, and everything in between. This fat bike combines our durable Aluminum Frame with our basic component build with a KS dropper

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.

From the carbon frame series of fat tire bikes, Borealis' Crestone features Terrene Wazia (studded ready), a dropper post, NX drivetrail. Whether it's on winter trails or loose terrain the Crestone is ready for your next adventure.