Product Details
The end result is easy to explain—you have way more fun. And to make sure of it, we built the Fatboy with a durable list of components, like a SRAM 11-speed one-by drivetrain, that are low-maintenance and eager to perform season after season. Have more fun—go fat.
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The frame features an M5 alloy construction that provides the ideal blend of efficiency and durability, while the geometry creates a roomy top tube and short chainstays for easy climbing and confident descending.
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A FACT carbon fiber fork provides tons of compliance and absorbs chatter, while simultaneously keeping the overall weight of the bike down.
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The SRAM NX one-by groupset keeps things simple, and is ready to take on the trail for the long haul.
Technical Specifications
FRAMESET
FRAME
Specialized M5 Aluminum, fully butted w/ Smooth Welds, tapered head tube and seat tube, forged post-mount 160mm disc dropouts, internal routing, forged bottom bracket shell, 197x12mm rear thru-axle
SUSPENSION
FORK
Specialized FACT carbon, 46mm offset, tapered steerer, 150mm axle
COCKPIT
HANDLEBARS
Stout Riser, double-butted alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 750mm width, 31.8mm
STEM
Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
GRIPS
Specialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
SADDLE
Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm
SEATPOST
Specialized 2-bolt head, forged alloy, 8mm offset, micro-adjust, 30.9mm
SEAT BINDER
Alloy, bolt-type, 34.9mm
BRAKES
REAR BRAKE
SRAM Level T, hydraulic disc, 180/160mm
FRONT BRAKE
SRAM Level T, hydraulic disc, 200/180mm
DRIVETRAIN
SHIFT LEVERS
SRAM NX, 11-speed
REAR DERAILLEUR
SRAM NX, 11-speed
CASSETTE
SRAM PG-1130, 11-speed, 11-42t
CRANKSET
Race Face Ride
CHAINRINGS
Steel, 28T
BOTTOM BRACKET
Race Face, threaded BSA
CHAIN
KMC X11EPT, 11-speed, anti-corrosion coating w/ reusable Missing Link™
WHEELS & TIRES
RIMS
Stout XC 80, 26", 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
Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 26x4.6"
REAR TIRE
Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 26x4.6"
INNER TUBES
Presta, 40mm valve
ACCESSORIES
PEDALS
Specialized Dirt
* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.
Geometry
| S | M | L | XL | |
|---|---|---|---|---|
| Crank Length | 170MM | 175MM | 175MM | 175MM |
| Handlebar Width | 750MM | 750MM | 750MM | 750MM |
| Stem Length | 60MM | 60MM | 70MM | 70MM |
| Saddle Width | 143mm | 143mm | 143mm | 143mm |
| Seatpost Length | 350MM | 350MM | 400MM | 400MM |
| Bike Standover Height, Actual | 765mm | 786mm | 813mm | 847mm |
| Stack | 602mm | 602mm | 617mm | 632mm |
| Reach | 395mm | 420mm | 437mm | 458mm |
| Head Tube Length | 94mm | 94mm | 110mm | 125mm |
| Head Tube Angle | 71° | 71° | 71° | 71° |
| BB Height | 316mm | 316mm | 316mm | 316mm |
| BB Drop | 60mm | 60mm | 60mm | 60mm |
| Trail | 83mm | 83mm | 83mm | 83mm |
| 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 |
| Seat Tube Length | 394mm | 434mm | 470mm | 520mm |
| Seat Tube Angle | 73mm | 73mm | 73mm | 73mm |
