Borealis Bikes

Borealis Bikes Flume NX Fat Tire Mountain Bike

  • Sale
  • Regular price $ 1,799.00

The 2018 Flume NX Complete Fat Bike is designed to reconnect you to the fun-loving and rowdy times of your youth. After you throw one leg over the aluminum frame, the Flume dares you not to smile and feel like a kid again, as you feel the soul of the speed-loving and nimble carbon Borealis Crestone, but at a much lower price point. The four-inch tires on solid 80mm rims and a chatter-absorbing carbon fork call you to get playful in everything from snow to sand to baby-head rock gardens, and the SRAM NX 1x11 drivetrain powers you through them.

  • A bike for all-terrain adventure cycling
  • Fat tires for floating across sand and snow
  • Rigid carbon fork absorbs trail chatter but not watts


Frame Borealis Flume Lightweight 6066 Alloy Frame (Orange/Black/Green)

Fork Borealis Carbon Rigid Fork or Bluto RL

Headset Borealis

Hubs Borealis: Front 15x150 Rear 12x197

Rims Borealis FTD 65mm, FTD 80mm, FR80

Spokes Wheelsmith Black

Nipples Wheelsmith Silver Brass

Tires Husker Du or Knard 27TPI

Tubes Borealis MagnumFAT

Bar Borealis Carbon 35mm

Stem Borealis 70mm

Post Borealis Carbon 31.6mm

Saddle Borealis

Grips Ergon GA30

Crankset SRAM Eagle GX Alloy w/30T Chain Ring

Rear Derailleur SRAM NX 1x11

Chain SRAM NX11

Cassette SRAM PG 1130 11-42

Shifters SRAM NX 1x11

Brakes SRAM Level T w/Centerline 160/160mm Rotors

DT/CS Protector Lizard Skins

Weight ~26lbs 15oz + 2lbs for Bluto

Please call or email the shop for further information