Fatboy
$1,850.00
Part No.  

Fatboy

$1,850.00
Part No.  115629
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Fatboy
Overview
Technical Specifications
Geometry
Reviews
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.
  • 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 
  • A FACT carbon fiber fork provides tons of compliance and absorbs chatter, while simultaneously keeping the overall weight of the bike down
  • Tough, ultra-wide alloy rims are dependable and rugged. So whether you're trail riding or plowing through the snow, these wheels will be the perfect mix of performance and strength

Technical Specifications

FRAMESET
SEAT BINDER Alloy, 31.8mm
FRAME M5 Aluminum, fully butted w/smooth welding, tapered head tube and seat tube, 100mm of travel, forged post mount 160mm disc drop outs, internal routing, forged bottom bracket shell, 197x12mm thru-axle rear
WHEELS
FRONT HUB Specialized Stout XC, alloy disc, double-sealed cartridge bearings, 15x150mm thru-axle, 32h
REAR HUB Stout XC 197, disc alloy, sealed cartridge bearings, 12x197mm thru-axle, 32h
INNER TUBES Standard, Presta valve
SPOKES Stainless, black, 14g
FRONT TIRE Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 2Bliss Ready, 26x4.6""
RIMS Specialized 26"" disc front, 21mm depth, 86mm internal width, 32h
REAR TIRE Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 2Bliss Ready, 26x4.6""
DRIVETRAIN
CHAIN 10-speed, extra lightweight hollow outer links w/reusable Missing Link # CL559R
CRANKSET RaceFace Aeffect Cinch, 28T chainring, 11-speed, threaded BB
CASSETTE Sunrace, 10-speed, 11-42t
SHIFT LEVERS SRAM X7, 10-speed, trigger
REAR DERAILLEUR SRAM X7 Type 2.1, long cage, 10-speed
COCKPIT
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
BRAKES
FRONT BRAKE Tektro Gemini, hydraulic disc, resin pads, i-Spec compatible, 180mm rotor
REAR BRAKE Tektro Gemini, hydraulic disc, resin pads, i-Spec compatible, 160mm rotor
ACCESSORIES
PEDALS Specialized Dirt Pedals
SUSPENSION
FORK Specialized FACT carbon, 46mm offset, tapered steerer, 150mm axle

Geometry

Geometry Chart

Fatboy - Geometry

S M L XL
  S M L XL
Crank Length 170mm 175mm 175mm 175mm
Stem Length 60mm 60mm 70mm 70mm
Saddle Width 143mm 143mm 143mm 143mm
Handlebar Width 750mm 750mm 750mm 750mm
Seat Post Length 350mm 350mm 400mm 400mm
Reach 395mm 420mm 437mm 458mm
Stack 590mm 600mm 614mm 628mm
Wheelbase 1083mm 1111mm 1133mm 1159mm
Bike Stand-Over Height 754mm 786mm 812mm 840mm
Head-Tube Length 110mm 120mm 135mm 150mm
Front-Center 634mm 663mm 685mm 711mm
Fork Rake/Offset 46mm 46mm 46mm 46mm
Head-Tube Angle 70.5° 70.5° 70.5° 70.5°
Trail 84mm 84mm 84mm 84mm
B-B Height 316mm 316mm 316mm 316mm
Chain-Stay Length 455mm 455mm 455mm 455mm
Fork Length (full) 467mm 467mm 467mm 467mm
Seat-Tube Angle 73° 73° 73° 73°
B-B Drop 60mm 60mm 60mm 60mm
Seat-Tube Length 394mm 445mm 483mm 533mm
Top-Tube Length (horizontal) 576mm 603mm 625mm 650mm

Reviews