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Borealis Bikes
Flume NX/Bluto Complete Fat Bike - 2018

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Skip hibernation this year.

Extend the riding season and play in the snow like a kid again with the 2018 Borealis Bikes Flume NX/Bluto Complete Fat Bike. Not only is riding a new bike in the snow exhilarating, you'll stay fit over the winter months and have a leg up on your riding buddies come spring. This bike is such a hoot to ride that even after the snow melts, the Flume is plenty versatile and fun that you'll continue to pound out frequent miles on non-snow covered trails, bikepacking expeditions, or even a coastline tour.


The lightweight 6066-series aluminum frame is paired with a 100mm travel Rock Shox Bluto RL suspension fork so you can bomb down the sketchiest snow and ice covered singletrack with total confidence. The wide-range SRAM NX 1x drivetrain gives you plenty of gearing for tackling epic days in the snow-covered backcountry, loaded touring, or the burgeoning fat bike race scene. 4in rubber on 80mm rims gives you great flotation over the freshest powder and the geometry is honed from the experience that can only come from a company that specializes exclusively in crafting fat bikes. The frame's reduced stand over height is super helpful with the frequent mounting and dismounting that is expected with heavy boots and snow pants.


Details

  • A no-nonsense fat bike for winter adventures
  • Fat bike specific geometry blend agility and stability
  • Aluminum frame is lightweight and responsive
  • SRAM NX group offers plenty of range
  • Colorado-based Borealis focuses solely on crafting fat bikes
  • Item #BOR000O
Frame Material
6066 aluminum
Fork
Rock Shox Bluto RL
Front Travel
100mm
Headset
Borealis
Shifters
SRAM NX
Front Derailleur
n/a
Rear Derailleur
SRAM NX
ISCG Tabs
no
Crankset
30t SRAM Eagle GX
Bottom Bracket
100mm threaded
Crank Arm Length
175mm
Cassette
11 - 42t SRAM PG 1130
Chain
SRAM 11 Speed
Brakeset
SRAM Level T
Brake Type
hydraulic disc
Rotors
[front] 160mm, [rear] 160mm SRAM Centerline
Handlebar
Truvativ Alloy
Handlebar Rise
9mm
Handlebar Sweep
9-degree
Handlebar Width
740mm
Grips
Ergon GA30
Stem
Borealis
Stem Length
70mm
Saddle
Borealis
Seatpost
RaceFace Alloy
Wheelset
[rims] Borealis Turnagain FR80, [spokes] Wheelsmith, [nipples] Wheelsmith brass
Hubs
Borealis
Front Axle
15 x 150mm
Rear Axle
12 x 197mm
Tires
[front] 45nrth Husker Du 27tpi, [rear] 45nrth Husker Du 27tpi
Tire Size
[front] 26 x 4in, [rear] 26 x 4in
Pedals
not included
Extras
Lizard Skins DT/CS protector
Claimed Weight
28.9lb
Recommended Use
mud/sand/snow
Manufacturer Warranty
5 years on frame

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