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  • Borealis Bikes Flume NX/Bluto Complete Fat Bike - 2018
  • Borealis Bikes Flume NX/Bluto Complete Fat Bike - 2018 Rear Drivetrain
  • Borealis Bikes Flume NX/Bluto Complete Fat Bike - 2018 Fork
  • Borealis Bikes Flume NX/Bluto Complete Fat Bike - 2018 Rear Brake
  • Borealis Bikes Flume NX/Bluto Complete Fat Bike - 2018 Front Drivetrain
  • Borealis Bikes Flume NX/Bluto Complete Fat Bike - 2018 Rear Derailleur/ Cassette
  • Borealis Bikes Flume NX/Bluto Complete Fat Bike - 2018 Front Brake
  • Borealis Bikes Flume NX/Bluto Complete Fat Bike - 2018 3/4 Back
  • Borealis Bikes Flume NX/Bluto Complete Fat Bike - 2018 3/4 Back
  • Borealis Bikes Flume NX/Bluto Complete Fat Bike - 2018 Crank
  • Borealis Bikes Flume NX/Bluto Complete Fat Bike - 2018 Fork
  • Borealis Bikes Flume NX/Bluto Complete Fat Bike - 2018 Fork
  • OptionsBorealis Bikes -
  • Detail Images - Rear Drivetrain
  •  - Fork
  •  - Rear Brake
  •  - Front Drivetrain
  •  - Rear Derailleur/ Cassette
  •  - Front Brake
  •  - 3/4 Back
  •  - 3/4 Back
  •  - Crank
  •  - Fork
  •  - Fork
Borealis BikesFlume NX/Bluto Complete Fat Bike - 2018

Temporarily Out Of Stock

Item # BOR000O

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

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Description

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.

  • 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
Tech SpecsSize
Tech Specs
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
Recommended Use
mud/sand/snow
Manufacturer Warranty
5 years on frame
Size

Borealis

Flume
 

Seat Tube

Effective Top Tube

Stack

Reach

Stand Over

Head Tube

Head Tube Angle

Seat Tube Angle

Bottom Bracket Height

Bottom Bracket Drop

Chainstay

Wheelbase

S 15in 23.78in 23.5in 16.04in   4.13in 70o 73o   2.36in 17.91in  
M 17.01in 24.02in 24.05in 16.65in   4.72in 70o 73o   2.36in 17.91in  
L 19.06in 24.8in 24.61in 17.22in   5.31in 70o 73o   2.36in 17.91in  
XL 21.02in 25.59in 25.61in 17.76in   5.91in 70o 73o   2.36in 17.91in  

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Unanswered Question

I was wondering if the wheelset is the tubeless ready FTD FR80 seen in the pictures, or the listed FR80? Also the tires listed are 45nrth and surly in the pictures?