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  • Borealis Bikes - Crestone GX Eagle/Mastodon Complete Fat Bike - Merlot/Grey
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  • Borealis Bikes - Crestone GX Eagle/Mastodon Complete Fat Bike - Merlot/Grey

Borealis Bikes Crestone GX Eagle/Mastodon Complete Fat Bike

$3,450.00

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    • Merlot/Grey, S
      $3,450.00
    • Merlot/Grey, M
      $3,450.00
    • Merlot/Grey, L
      $3,450.00
    • Merlot/Grey, XL
      $3,450.00

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    Details

    Crestone GX Eagle/Mastodon Complete Fat Bike

    Over the years fat bikes have gained a reputation as the slow, plodding adventurer of the bicycle world, but Borealis blows that old stereotype out of the snow with the Crestone GX Eagle/Mastodon Complete Fat Bike. Pairing a stiff carbon fiber frame, plush 27.5in fat tires, a Manitou Mastodon suspension fork, and SRAM's workhorse GX Eagle groupset, this bike is a lightweight and versatile steed chomping at the bit to take on snowy trail adventures and beyond. Tell your other bikes they'll be getting a lot of rest this winter, layer up, and head out into the wilderness.

    Borealis built the Crestone frame using cutting-edge carbon fiber construction methods to finely tune the ride quality, resulting in a lightweight yet impressively strong frame that will hold up to heavy use. That's particularly important since the addition of the 100mm travel Mastodon invites you to take more difficult line choices. Nimble handling and low weight are helpful attributes on fat bikes, and you'll appreciate pedaling around the Crestone with its lightweight carbon fiber frame and quick-handling geometry. Not unlike an XC race bike, Borealis gave the Crestone a relatively steep 70-degree head tube angle and a shorter reach to keep you in a comfortable position and help quicken the steering of that big wide front tire. The geometry is also well suited for bikepacking and touring, helping you cover ground quickly and efficiently.

    This Crestone is built up with 27.5 x 4.0in tires on 80mm rims, providing a solid platform to roll on snow or loose terrain while remaining sprightly compared to extra fat and voluminous 26 x 4.8in fat bike tires. 27.5in fat tires have shorter sidewalls than their 26in fat tire counterparts, contributing to more precise cornering, less tire bounce, and a faster feel on packed snow or moderately loose terrain. This gives the Crestone an even livelier feel with improved rollover characteristics, though you can always switch to some fatter tires later on if you need maximum flotation for fresh snow or deep sand.

    • A lightweight carbon fat bike for winter adventures and beyond
    • Stiff and light carbon construction increases efficiency
    • Snappy geometry for quick and nimble handling
    • Mastodon fork for extra traction and cushion in rugged terrain
    • 27.5 x 4.0in fat tires balance rollover with flotation
    • Carbon fiber bar and post improve comfort and shed weight
    • GX Eagle drivetrain offers wide gear range, crisp shifting, and impeccable chain retention
    • Item #BOR000Z

    Tech Specs

    Frame Material
    carbon fiber
    Fork
    Manitou Mastodon EXT Pro
    Front Travel
    100mm
    Headset
    Borealis
    Shifters
    SRAM GX Eagle 12-speed
    Rear Derailleur
    SRAM GX Eagle 12-speed
    Crankset
    SRAM GX Eagle Alloy
    Chainring Sizes
    30t
    Crank Arm Length
    175mm
    Bottom Bracket
    SRAM DUB
    Bottom Bracket Type
    BSA threaded 100mm
    Cassette
    SRAM XG-1275 GX Eagle 12-speed
    Cassette Range
    10 - 50t
    Chain
    KMC X12 12-speed
    Brakeset
    SRAM Level T
    Brake Type
    hydraulic disc
    Rotors
    160mm SRAM CenterLine
    Handlebar
    Borealis Carbon Bar 35mm
    Handlebar Width
    740mm
    Grips
    Ergon GA2
    Stem
    Borealis
    Stem Length
    [small - large] 50mm, [x-large] 70mm
    Saddle
    Borealis
    Seatpost
    Borealis Carbon 31.6mm
    Seat Collar
    34.9mm
    Wheelset
    [rims] Sun Ringle Mulefut 80mm
    Hubs
    Borealis
    Front Axle
    15 x 150mm thru-axle
    Rear Axle
    12 x 197mm thru-axle
    Tires
    Terrene Cake Eater
    Tire Size
    27.5 x 4.0in
    Pedals
    not included
    Recommended Use
    mud/sand/snow
    Manufacturer Warranty
    5 years on frame

    Tech Specs

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