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Borealis Bikes Flume GX Complete Fat Bike - 2016

$2,199.00

Item # BOR000L

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  • Orange, S ($2,199.00)
  • Orange, M ($2,199.00)
  • Orange, L ($2,199.00)
  • Orange, XL ($2,199.00)
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Item # BOR000L

Snowy trails and summer bikepacking.

Whether you're contemplating a snowy landscape or a sandy bikepacking trip, 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.

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

Tech Specs

Frame Material:
aluminum
Fork:
Borealis Carbon Rigid
Headset:
Cane Creek 40
Shifters:
SRAM GX 1x11
Rear Derailleur:
SRAM GX 1x11
Crankset:
30 t Race Face Aeffect Cinch
Crank Arm Length:
175 mm
Cassette:
10 - 42 t SRAM XG-1175
Chain:
KMC X11
Brakeset:
SRAM DB5
Brake Type:
hydraulic disc
Rotors:
160 / 160 mm SRAM Centerline
Handlebar:
Borealis Carbon 35
Handlebar Width:
740 mm
Grips:
Ergon GA2
Stem:
Race Face Aeffect 35
Stem Length:
70 mm
Saddle:
Ergon SME30 EVO
Seatpost:
Borealis Carbon 31.6mm
Wheelset:
Turnagain FR80
Hubs:
Borealis
Front Axle:
15 x 150mm
Rear Axle:
12 x 197mm
Tires:
Husker Du 27tpi
Tire Size:
26 x 4.0 in
Extras:
Lizard Skins DT/CS protector
Recommended Use:
snow and sand
Manufacturer Warranty:
5 years on frame
Actual Weight:
Orange, M: 13600g

sizing chart

Flume size by rider height

|

Geometry chart

Borealis

Geometry Chart

 

Flume
 

Seat Tube

(c-t)

Effective Top Tube

(eTT)

Stack

(S)

Reach

(R)

Head Tube

(HT)

Head Tube Angle

(HTo)

Seat Tube Angle

(STo)

Bottom Bracket Drop

(BBD)

Chainstay

(CS)

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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