Fatboy Comp Carbon

Fatboy Comp Carbon

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Every now and again, we're all faced with going on a diet. The same is true for our Fatboy. With the Fatboy Comp Carbon, we've taken performance and strength up a notch, while also moving up a wheelsize, to a 27.5 wheel and tire combo.


It boils down to a single word: adventure. The Fatboy’s massive tires (27.5x3.8”) float over rocks, roots, sand, snow, ice…. Let’s put it this way, if it’s part of mother earth, those big tires will roll right over it with a mix of comfort and traction that’s unrivaled. Get out there.

• Light-yet-tough carbon frame holds up to any adventure you can throw at it.

• Lightweight carbon-fiber fork provides tons of compliance and absorbs chatter.

• The SRAM GX Eagle 1X drivetrain gives you plenty of gearing to tackle any climb.


Frame Specialized FACT 10m, 12x197mm thru-axle rear, internal cable routing
Seat Binder Alloy, 34.9mm
Fork Specialized FACT carbon, 46mm offset, tapered steerer, 150mm axle
Handlebars Stout Riser, double-butted alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 750mm / 780mm width, 31.8mm
Stem Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise
Saddle Specialized Bridge, size specific, 143/155
Seatpost Specialized 2-bolt head, forged alloy, 8mm offset, micro-adjust, 30.9mm
Grips Specialized Sip grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
Front Brake SRAM Level TL, hydraulic Disc, 200/180mm
Rear Brake SRAM Level TL, hydraulic disc, 180/160mm
Shift Levers SRAM GX Eagle, trigger, 12-speed
Rear Derailleur SRAM GX Eagle, 12-speed
Cassette SRAM GX Eagle, 12-speed, 10-50t
Crankset SRAM STYLO Carbon
Chainrings 30T
Bottom Bracket SRAM DUB, PF30
Chain SRAM GX Eagle, 12-speed w/ PowerLock®
Rims Stout XC 80, 27.5", alloy, 76mm internal width, disc-specific
Front Hub Stout Pro 150, sealed cartridge bearings, 6-bolt disc, 15x150mm, 32h
Rear Hub Stout Pro 197, sealed cartridge bearings, 6-bolt disc, 12x197mm, 32h
Spokes Stainless, 14g
Front Tire Maxxis Minion FBF, 120 TPI, EXO, 27.5 x 3.8"
Rear Tire Maxxis Minion FBR, 120 TPI, EXO, 27.5 x 3.8"
Inner Tubes Presta valve
Pedals Specialized Dirt
Gloss Carbon/Gunmetal $2,950


Stack 602mm 602mm 617mm 632mm
Reach 395mm 420mm 437mm 458mm
Head Tube Length 94mm 94mm 110mm 125mm
Head Tube Angle 70,5° 70,5° 70,5° 70,5°
BB Height 312mm 312mm 312mm 312mm
BB Drop 60mm 60mm 60mm 60mm
Trail 80mm 80mm 80mm 80mm
Fork Length, Full 496mm 496mm 496mm 496mm
Fork Rake/Offset 47mm 47mm 47mm 47mm
Front Center 640mm 665mm 687mm 713mm
Chainstay Length 455mm 455mm 455mm 455mm
Wheelbase 1088mm 1113mm 1135mm 1161mm
Top Tube Length, Horizontal 579mm 604mm 626mm 651mm
Bike Standover Height 738,5mm 752mm 778,3mm 807,5mm
Seat Tube Length 394mm 434mm 470mm 520mm
Seat Tube Angle 73° 73° 73° 73°
Crank Length 170MM 175MM 175MM 175MM
Handlebar Width 750MM 750MM 750MM 750MM
Stem Length 60MM 60MM 75MM 75MM
Saddle Width 155mm 143mm 143mm 143mm
Seatpost Length 350MM 350MM 400MM 400MM