• 2019 Specialized Fatboy SE

  • $1,099.00 $1,620.00

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If having fun for the sake of having fun sounds appealing to you, "going fat" will change the way you ride forever. The security and control that the wheel system, found on our Fatboy SE, 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, no-nonsense list of components that are low-maintenance and eager to perform season after season. 

  • 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.
  • Our alloy fork with air-formed legs is lightweight and pairs up perfectly with the fat wheel system to soak up trail chatter and bumps.
  • The Shimano 10-speed groupset features a wide gear range that delivers climbing and descending efficiency in spades. On top of this, the one-by setup is notorious for being next to impossible to drop a chain with, plus it provides a significant weight savings in comparison to a standard two-by setup.


  • 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
  • FORK - Specialized Alloy, 47mm offset, tapered steerer, 150mm axle
  • 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
  • RIMS - Stout XC 80, 26", alloy, 76mm internal width, disc-specific
  • INNER TUBES - Presta, 40mm valve
  • FRONT TIRE - Ground Control Fat, 60 TPI, wire bead, 26x4.6"
  • REAR TIRE - Ground Control Fat, 60 TPI, wire bead, 24x4.6"
  • CRANKSET - Stout Pro, direct-mount
  • CHAINRINGS - Steel, 28T
  • BOTTOM BRACKET - BSA, threaded
  • SHIFT LEVERS - Shimano Deore, 10-speed
  • REAR DERAILLEUR - Shimano Deore, Shadow Plus, GS cage, 10-speed
  • CASSETTE - SunRace, 10-speed, 11-42t
  • CHAIN - KMC X10, 10-speed w/ reusable Missing Link™
  • FRONT BRAKE - Tektro Aries, mechanical disc, 203/180mm
  • REAR BRAKE - Tektro Aries, mechanical disc, 180/160mm
  • HANDLEBARS - Stout Riser, double-butted alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 750mm width, 31.8mm
  • GRIPS - Specialized MTB Grip, lock-on
  • STEM - Stout 3D-forged alloy, 31.8mm, 6-degree rise
  • SADDLE - Body Geometry Henge Sport, 143mm
  • SEATPOST - Alloy, 12mm offset, 2-bolt clamp, 30.9mm
  • SEAT BINDER - Alloy, bolt-type, 34.9mm
  • PEDALS - Specialized Dirt