2016 Specialized Fatboy SE

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 here 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 M4 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.
• Our Stout XC 90 alloy rims have been laced to Stout XC hubs to form a wheelset that's dependable, rugged, and efficient. So whether you're trail riding or plowing through the snow, these wheels will be the perfect mix of performance and strength.
• 26x.4.6" Ground Control tires help soak up bumps, while also providing a game-changing level of traction, control, and floatation for better handling out in the wild.
• A custom Samox 2x10 crankset features an alloy construction to provide a crankset that offers up strength, durability, and plenty of gear range for climbing.

Technical Specifications

• FRAME - Specialized M4 aluminum, fully-butted tubing w/ smooth welds, tapered head tube, post-mount disc dropouts, 190mm rear hub spacing, replaceable alloy derailleur hanger
• FORK - Specialized, alloy, air-formed legs, tapered alloy steerer, 135mm hub spacing, open QR dropouts
• HEADSET - 1-1/8" upper, 1-1/2" lower, threadless, Campy style, cartridge bearings
• STEM - Specialized Stout, 3D forged alloy, 4-bolt, 6-degree rise, anti-corrosion hardware
• HANDLEBARS - Specialized Stout XC, double-butted 6061 alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 31.8mm
• GRIPS - Specialized Body Geometry XCT Contour, Kraton w/ gel, lock-on
• FRONT BRAKE - Tektro Aries, mechanical disc, organic pads, post mount, 160mm rotor
• REAR BRAKE - Tektro Aries, mechanical disc, organic pads, IS type, 160mm rotor
• BRAKE LEVERS - Tektro, mechanical disc
• FRONT DERAILLEUR - SRAM X5, 2x10, low direct mount
• REAR DERAILLEUR - SRAM X5, 10-speed, long cage
• SHIFT LEVERS - SRAM X5, 2x10, trigger
• CASSETTE - Sunrace, 10-speed, 11-36t
• CHAIN - KMC X10, 10-speed, w/ reusable MissingLink
• CRANKSET - Specialized Stout XC, forged alloy, 2x10, PF30, Cr-Mo spindle, 36/22T, 104mm BCD spider
• BOTTOM BRACKET - Samox, PF30, sealed cartridge
• PEDALS - Nylon, 1 pc. body, 9/16", w/ reflectors
• RIMS - Specialized Stout XC 90, disc, alloy, single wall, 90mm wide, sleeve joint, hookless design, 32h
• FRONT HUB - Specialized Stout XC 135, Hi Hi disc, alloy, loose ball bearings, bolt-on axle, 32h
• REAR HUB - Specialized Stout XC 190, Hi Hi disc, alloy, sealed cartridge bearings, QR, 32h
• SPOKES - Stainless, 14g, black
• FRONT TIRE - Specialized Ground Control Fat, 60TPI, wire bead, 26x4.6"
• REAR TIRE - Specialized Ground Control Fat, 60TPI, wire bead, 26x4.6"
• INNER TUBES - Standard, Presta valve
• SADDLE - Body Geometry mountain, steel rails, 143mm
• SEATPOST - Alloy, 2-bolt, micro-adjust, 12.5mm offset, 30.9mm
• SEAT BINDER - Alloy, 31.8mm