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Specialized Fatboy Comp Carbon


Regular price $3,199.99 USD
Regular price $3,219.99 USD Sale price $3,199.99 USD Sale Sold out
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Every now and again, we're all faced with going on a diet, and the same is true for our Fatboy. With the Fatboy Comp Carbon, we've elevated the fat bike platform to a higher level of performance, strength, and efficiency. It features a sophisticated carbon construction that's lightweight, ultra-compliant, and stiff in all the right places for the climbs. The layup also allowed us to integrate internal cable routing to keep things clean and simple through nasty conditions. Sprinkle in SRAM's 12-speed GX Eagle drivetrain, and some near bombproof alloy wheels, and you have a bike that'll give new purpose to winter and more fun to springtime.

  • An immaculate FACT carbon fiber construction ensures that the frame is lightweight and plenty stiff in all the right places. Internal cable routing is also incorporated, ensuring that slush, sand, snow, or dirt will have no bearing on performance out on the trail.
  • A FACT carbon fiber fork provides tons of compliance and absorbs chatter, while simultaneously keeping the overall weight of the bike down.
  • SRAM's 12-speed GX Eagle drivetrain, with a Race Face Next R crank, features an ultra-wide gear range that delivers climbing and descending efficiency in spades. On top of this, the one-by setup is notorious for being next to impossible to drop a chain with, plus it provides a significant weight savings in comparison to a standard two-by setup.

Product Specifications

bottom bracket

Race Face, Pf30


Sram Gx Eagle, 12-speed, 10-50t


Sram Gx Eagle, 12-speed


Alloy, 30t


Race Face Next R


Specialized Fact Carbon, 46mm Offset, Tapered Steerer, 150mm Axle


Specialized Fact 10m, 12x197mm Thru-axle Rear, Internal Cable Routing

front brake

Sram Level Tl, Hydraulic Disc, 200/180mm

front hub

Stout Pro 150, Sealed Cartridge Bearings, 6-bolt Disc, 15x150mm, 32h

front tire

Ground Control Fat, Control Casing, 120 Tpi, Aramid Folding Bead, 2bliss Ready, 26x4.0"


Specialized Sip Grip, Half-waffle, S/m: Regular Thickness, L/xl: Xl Thickness


Stout Riser, Double-butted Alloy, 9-degree Backsweep, 5-degree Upsweep, 15mm Rise, 750mm / 780mm Width, 31.8mm

inner tubes

Presta, 40mm Valve


Specialized Dirt

rear brake

Sram Level Tl, Hydraulic Disc, 180/160mm

rear derailleur

Sram Gx Eagle, 12-speed

rear hub

Stout Pro 197, Sealed Cartridge Bearings, 6-bolt Disc, 12x197mm, 32h

rear tire

Ground Control Fat, Control Casing, 120 Tpi, Aramid Folding Bead, 2bliss Ready, 26x4.0"


Stout Xc 80, 27.5", Alloy, 76mm Internal Width, Disc-specific


Body Geometry Phenom Comp, Hollow Cr-mo Rails, 143mm

seat binder

Alloy, 34.9mm


Specialized 2-bolt Head, Forged Alloy, 8mm Offset, Micro-adjust, 30.9mm

shift levers

Sram Gx Eagle, Trigger, 12-speed


Stainless, 14g


Specialized Trail, 3d-forged Alloy, 4-bolt, 6-degree Rise

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