2021/2022 Borealis Crestone Carbon Fat Tire Bicycle

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  • Regular price $ 3,900.00
  • 1 available
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Current Stock (08/21):

Currently we have the new midnight blue color available in all sizes. Due to shortage of bicycle parts, Pricing has been changing weekly. 

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We build using 3 different SRAM Drivetrain Kits. We use NX Eagle, GX Eagle, and AXS XX Eagle depending on what level of Fat Bike you would like. 

 

We several different wheel sizes depending on what type of experience you are looking to build up. Most common is a 26x4.0 but we also do 27.5x4.0 and 27.5x3.0 builds.

 

Have any other questions? Give us a call! We would love to walk you through our line-up of Borealis Fat Bikes.

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Since 2013, Borealis has specialized in lightweight carbon fiber fat bikes. The tried and true Crestone is our flagship model, weighing under 30 pounds with standard options. Its frame geometry is optimized for riding in snow and sand with clearance for up to 5” wide tires. Paired with the most technically advanced components in the industry, the Crestone sets the standard for premium quality carbon fiber fat bikes.

HIGHLIGHTS:

  • Frame geometry provides responsive and nimble handling for variable conditions in snow or sand.
  • Standard features include: Eagle NX 12-Speed drivetrain, rigid carbon fork, carbon handlebars, carbon seat post, durable Mulefut rims and internally routed cables.
  • Tire clearance up to 26x5” and 27.5x4.5”.
  • Compatibility for 100-120mm of suspension travel for more technical riding.
  • Lightweight, durable carbon fiber frame comes with 3 bottle cage mounts and lizard skin protectors on both the down tube and drive-side chain stay.

COMPATIBILITY:

  • Rockshox Bluto Fork tire size limitations: 26x5” or 27.5x4”
  • Mastodon Pro EXT Fork tire size limitations: 26x5” or 27.5x4.5”
  • Borealis Rigid Carbon Fork tire size limitations: 26x5” or 27.5x4.5”
  • Dually 29x45 and 27.5x45 Rims – Max tire width: 3”
  • All rims 65mm to 85mm wide are compatible with tire widths of 3.8” to 5”
  • HED Carbon 100mm Rims – Max tire width of 4.6”

SPECS:

Eagle NX Eagle GX Eagle XX
Crankset SRAM Eagle NX SRAM Eagle GX SRAM Eagle XX
Crank Arms 175mm Alloy 175 Alloy
175 Carbon
Rear Derailleur RD ENX 1 x 12 RD EGX 1 x 12
RD EXX 1 x 12
Chain KMC X12 KMC X12
SRAM X12 Gold
Cassette PG 1230 11-50 XG 1275 10-50
XG 1299 10-50 Gold
Shifters SRAM ENX SRAM EGX
SRAM EXX
Brakes SRAM - Select SRAM - Select
SRAM - Select
Chain Ring 30 Tooth
Frame Borealis Crestone Carbon
Fork Borealis Carbon Rigid Fork or RL Bluto, Mastodon Pro Ext.
Headset Borealis
Hubs Borealis: Front 15×150 Rear 12×197
Rims Your Choice
Spokes Wheelsmith Black
Nipples Wheelsmith Silver Brass
Tires Your Choice
Bar Borealis Carbon Bar (35mm)
Stem Borealis 50mm or 70mm
Post Borealis Carbon Seatpost (31.6mm)
Saddle Borealis
Grips Borealis
Bottom Bracket SRAM DUB 100mm
DT/CS Protector Lizard Skins
Weight See weight calculator for exact weight.

GEOMETRY CHARTS


GEOMETRY CHART

Stack and Reach are the fundamental fit elements, they are both measured relative to the bottom bracket. When choosing the Borealis that is right for you, it’s important to find a balance in these measurements to ensure the best performance.

 

 

CRESTONE S M L XL S M L XL
Effective Top Tube 23.02 in 24.01 in 24.67 in 25.59 in 585 mm 610 mm 626.6 mm 650 mm
Seat Tube Center to Top 15.04 in 17.01 in 19.06 in 21.02 in 381 mm 432 mm 484 mm 534 mm
Head Tube 4.13 in 4.72 in 5.31 in 5.91 in 105 mm 120 mm 135 mm 150 mm
Seat Tube Angle 73 deg 73 deg 73 deg 73 deg 73 deg 73 deg 73 deg 73 deg
Head Tube Angle 70 deg 70 deg 70 deg 70 deg 70 deg 70 deg 70 deg 70 deg
Standover Height Due to various rim and tire options stand over is not identified.
Chainstay 18.07 in 18.07 in 18.07 in 18.07 in 459 mm 459 mm 459 mm 459 mm
BB Drop 2.36 in 2.36 in 2.36 in 2.36 in 60 mm 60 mm 60 mm 60 mm
Reach 16.04 in 16.65 in 17.22 in 17.76 in 407.3 mm 423 mm 437.5 mm 451.2 mm
Stack 23.50 in 24.05 in 24.61 in 25.16 in 597 mm 610.9 mm 625 mm 639.1 mm