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Borealis Bikes Crestone X01/Bluto Complete Fat Bike - 2016


Item # BOR000I

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  • Colorado, S ($5,150.00)
  • Colorado, M ($5,150.00)
  • Colorado, L ($5,150.00)
  • Colorado, XL ($5,150.00)
  • Northern Lights, L ($5,150.00)
  • Northern Lights, M ($5,150.00)
  • Northern Lights, S ($5,150.00)
  • Northern Lights, XL ($5,150.00)
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Item # BOR000I

Zenith of fatness.

While Borealis suggests that the carbon fiber frame at the heart of the Crestone X01/Bluto Complete Fat Bike is the efficiency peak of fat bike frame technology, it's the inclusion of a 100mm RockShox Bluto fork that really sets our fat-o-meter spinning for this build. The carbon frame — both stiffer and a claimed 150g lighter than Borealis' Echo — makes for surprisingly steady climbing, sure, but the extra plushness of a suspension fork mated to fat tires makes for even more surprising confidence across terrain.

The Crestone enjoys some other differences from the Echo, especially in the frame geometry. The Crestone has a slightly shorter top tube and stack, which combine with an equally subtle increase in head tube angle to tighten up the bike's steering. It's a more nimble chassis than we're used to seeing with such oversized tires, and its handling only serves to further underscore the frame's stiffness. Though it's the least expensive Crestone/Bluto build, the SRAM X01 drivetrain included here is by no means slop. The combination of simple, one-by efficiency and the Crestone's stiff-yet-plush fatness makes for a bikepacking rig for those who prefer to cover distance, fast.

Tech Specs

Frame Material:
carbon fiber
RockShox Bluto
Front Travel:
100 mm
Front Derailleur:
Rear Derailleur:
30 t Race Face Turbine Cinch
Crank Arm Length:
175 mm
10 - 42 t SRAM XG-1195
Brake Type:
hydraulic disc
180 / 180 mm SRAM Centerline
Borealis Carbon
Handlebar Width:
740 mm
Ergon GA2
Race Face Turbine
Stem Length:
70 mm
Ergon SME30 EVO
Borealis Carbon
Turnagain FR 80 FTD Tubeless
Front Axle:
15 x 150mm
Rear Axle:
12 x 197mm
Maxxis Minion
Tire Size:
26 x 4.8 in
not included
Recommended Use:
snow and sand
Manufacturer Warranty:
5 years on frame
Actual Weight:
Northern Lights, S: 13670g

sizing chart

Bike size by rider height


Geometry chart


Geometry Chart



Seat Tube


Effective Top Tube






Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop




S 15.04in 23.02in 23.5in 16.04in 4.13in 70o 73o 2.36in 18.07in
M 17.01in 24.01in 24.05in 16.65in 4.72in 70o 73o 2.36in 18.07in
L 19.06in 24.67in 24.61in 17.22in 5.31in 70o 73o 2.36in 18.07in
XL 21.02in 24.72in 25.16in 17.76in 5.91in 70o 73o 2.36in 18.07in

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Much more than a snowbike

  • Familiarity: I've used it several times

I got this as my race bike for the 2016 Tuscobia Ultra Winter Challenge in Northern Wisconsin. Figured it would be great on the snow but was very pleased to find out how much fun it is on the trail! Having moved to VA from out west last year, I don't have lots of opportunities to ride on snow. Living just 3 miles from the Blue Ridge Parkway, there are lots of places to trail ride. I spend lots of time on my Yeti ARC Enduro bike (also bought at BC). One trail that has always been a challenge for me is the Stony Mtn. Jeep trail. Drops 2,000 over a few miles over big sheets of embedded rock with lots of loose rock on top. Took the Krestone up it last week, still a lung buster, but with the amazing traction of 5" tires at 15 psi, I never got stopped. Coming down was amazing. Leaning through the turns like I was on my BMW F700.

Bike came meticulously prepped and ready to go. I went with the Thompson Covert Dropper, same as on my Yeti. The only change I have made is to put a well broken in Brooks C17 Carved saddle in place of the Ergon SME30 EVO. The Ergon is a fine saddle, for a couple of hours, but my training rides are upwards of 6 hours and sitting comfort ends up being the limiting factor.

I reviewed lots of other bikes before deciding on this one and BC helped me out getting one as soon as they were in production.