Just because winter is waning doesn't mean you have to pack the fat bike away. Keep the fat fun rolling with the 2016 Borealis Flume GX Complete Fat Bike. With its aluminum frame and a rockin' kit that includes Borealis' own rigid carbon fork, SRAM GX componentry, and beefy Husker Du tires, this rig is ready to shred snow, loose gravel, and sandy stretches with ease. Borealis built the Flume as an aluminum counterpart to its full carbon Crestone for a nimble ride at a fraction of the carbon cost. It boasts burly four inch tires on 80mm rims for a solid rolling platform that remains sprightly compared to the extra fat 100mm rims found on Borealis' other models. As with the Crestone, a 197mm rear hub results in a surprisingly stiff rear end and perfect drivetrain alignment with the 100mm threaded bottom bracket shell. That massive rear axle also leaves clearance to handle all the mud, snow, sand, or anything else you're likely to find caked to your machine during those epic bikepacking adventures.