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Fatboy
Going fat isn't just a fun way to ride—it's a ride revolution. The security and control that the wheel system, found on our Fatboy, provides is unparalleled. You get dramatically more traction, grip, and floatation than with traditional mountain tires, all without sacrificing much to climbing efficiency.
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 that are low-maintenance and eager to perform season after season. Have more fun—go fat.
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 thru-axle rear
SEAT BINDER
Alloy, 31.8mm
SPOKES
Stainless, 14g
REAR HUB
Sealed cartridge bearings, 6-bolt disc, 19x197mm axle, 10-speed alloy freehub, 32h
FRONT HUB
Stout Pro 150, sealed cartridge bearings, 6-bolt disc, 15x1150mm, 32h
RIMS
Stout XC 80, 26", 76mm internal width, 32h, tubeless ready
INNER TUBES
Standard, Presta valve
REAR TIRE
Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 26x4.6"
FRONT TIRE
Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 26x4.6"
FORK
Specialized FACT carbon, 46mm offset, tapered steerer, 150mm axle
SHIFT LEVERS
SRAM NX, trigger, 11-speed
CHAINRINGS
Steel, 30T
CRANKSET
Raceface Aeffect crank, BSA
CHAIN
KMC X11, 11-speed, anti-corrosion coating, w/ MissingLink™
CASSETTE
SRAM NX, 11-speed, 11-42t
REAR DERAILLEUR
SRAM NX, long cage, 11-speed
BOTTOM BRACKET
Threaded BSA
SADDLE
Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm
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
HANDLEBARS
Stout Pro Riser, double-butted alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 750mm width, 31.8mm
STEM
Specialized Alloy, 3D forged, 4-bolt, 6-degree
PEDALS
Specialized Dirt
REAR BRAKE
SRAM Level T hydraulic disc, organic pads, 180/160mm rotors
FRONT BRAKE
SRAM Level T hydraulic disc, organic pads, 200/180mm rotors
* 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.
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 |
Stack | 590mm | 600mm | 614mm | 628mm |
Reach | 395mm | 420mm | 437mm | 458mm |
Head Tube Length | 110mm | 120mm | 135mm | 150mm |
Head Tube Angle | 70.5° | 70.5° | 70.5° | 70.5° |
BB Height | 316mm | 316mm | 316mm | 316mm |
BB Drop | 60mm | 60mm | 60mm | 60mm |
Trail | 84mm | 84mm | 84mm | 84mm |
Fork Length, Full | 467mm | 467mm | 467mm | 467mm |
Fork Rake/Offset | 46mm | 46mm | 46mm | 46mm |
Front Center | 634mm | 663mm | 685mm | 711mm |
Chainstay Length | 455mm | 455mm | 455mm | 455mm |
Wheelbase | 1083mm | 1111mm | 1133mm | 1159mm |
Top Tube Length, Horizontal | 576mm | 603mm | 625mm | 650mm |
Bike Standover Height | 754mm | 786mm | 812mm | 840mm |
Seat Tube Length | 394mm | 445mm | 483mm | 533mm |
Seat Tube Angle | 73° | 73° | 73° | 73° |