Borealis Flume NX Fat Bike

The Borealis Flume NX is a lightweight aluminum fat bike built for snow, sand, loose terrain, and year-round adventure. A rigid carbon fork, SRAM Eagle NX 1x12 drivetrain, hydraulic disc brakes, and massive 27.5 x 4.3" Terrene tires provide dependable traction and control in demanding conditions.

Frameset

• Frame: Borealis Flume Aluminum

• Fork: Borealis Rigid Carbon, 51mm Offset

• Headset: FSA

Drivetrain

• Shifter: SRAM Eagle NX, 12-Speed

• Rear Derailleur: SRAM Eagle NX, 12-Speed

• Crankset: SRAM Eagle NX Alloy, 175mm

• Chainring: SRAM X-SYNC 30T

• Bottom Bracket: SRAM DUB Threaded, 100mm

• Cassette: SRAM PG-1230, 11–50T

• Chain: SRAM Eagle GX

Brakes

• Brakes: SRAM Level T 2-Piston Hydraulic

• Rotors: SRAM Centerline, 160mm

Wheels & Tires

• Wheel Size: 27.5"

• Rims: Sun Ringle Mulefut V2, 27.5 x 65mm

• Front Hub: Borealis GEN 4, 15x150mm

• Rear Hub: Borealis GEN 4, 12x197mm

• Spokes: Borealis Straight Gauge

• Nipples: Borealis Silver Brass

• Tires: Terrene Yippee Ki Yay, 27.5 x 4.3"

• Tire Casing: 120 TPI

• Studded: No

Components

• Handlebar: RaceFace NEXT SL 740 x 10mm or Borealis Carbon, depending on availability

• Stem: Borealis 50mm x 35mm

• Seatpost: Borealis Carbon, 31.6 x 400mm

• Saddle: Borealis

• Grips: Borealis

• Frame Protection: Lizard Skins DT/CS Protector

Availability

• Size Available: Large Only