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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.
- The SRAM NX one-by groupset keeps things simple, and is ready to take on the trail for the long haul.
|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|
|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|
|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|
|REAR BRAKE||SRAM Level T hydraulic disc, organic pads, 180/160mm rotors|
|FRONT BRAKE||SRAM Level T hydraulic disc, organic pads, 200/180mm rotors|
Fatboy - Geometry
|Top Tube Length, Horizontal||576mm||603mm||625mm||650mm|
|Seat Tube Angle||73°||73°||73°||73°|
|Head Tube Angle||70.5°||70.5°||70.5°||70.5°|
|Seat Tube Length||394mm||445mm||483mm||533mm|
|Head Tube Length||110mm||120mm||135mm||150mm|
|Bike Standover Height||754mm||786mm||812mm||840mm|
|Fork Length, Full||467mm||467mm||467mm||467mm|