Fatboy
Part No.  

Fatboy

Part No.  
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Fatboy
Overview
Technical Specifications
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

DRIVETRAIN
CHAIN 10-speed, extra lightweight hollow outer links w/reusable Missing Link # CL559R
CRANKSET RaceFace Aeffect Cinch, 28T chainring, 11-speed, threaded BB
SHIFT LEVERS SRAM X7, 10-speed, trigger
CASSETTE Sunrace, 10-speed, 11-42t
REAR DERAILLEUR SRAM X7 Type 2.1, long cage, 10-speed
SUSPENSION
FORK Specialized FACT carbon, 46mm offset, tapered steerer, 150mm axle
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
RIMS Specialized 26"" disc front, 21mm depth, 86mm internal width, 32h
FRONT TIRE Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 2Bliss Ready, 26x4.6""
REAR TIRE Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 2Bliss Ready, 26x4.6""
COCKPIT
SADDLE Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm
SEATPOST Specialized 2-bolt head, forged alloy, 8mm offset, micro-adjust, 30.9mm
STEM Specialized Alloy, 3D forged, 4-bolt, 6-degree
HANDLEBARS Stout Pro Riser, double-butted alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 750mm width, 31.8mm
GRIPS Specialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
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
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

Reviews