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Fatboy SE

2018 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.

Technical Specifications

FRAMESET

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

SEAT BINDER

Alloy, 31.8mm

WHEELS

RIMS

Stout XC 80, 26", 76mm internal width, 32h, tubeless ready

FRONT HUB

Stout 135, loose ball bearings, 10x135 QR, 32h

REAR TIRE

Ground Control Fat, 60 TPI, wire bead, 24x4.6"

FRONT TIRE

Ground Control Fat, 60 TPI, wire bead, 26x4.6"

SPOKES

Stainless, 14g

REAR HUB

Stout 190, sealed cartridge bearings, 10x190mm QR, 32h

INNER TUBES

Standard, Presta valve

SUSPENSION

FORK

Specialized, alloy, air-formed legs, tapered alloy steerer, 135mm hub spacing, open quick-release dropouts

DRIVETRAIN

CASSETTE

Sunrace, 10-speed, 11-42t

SHIFT LEVERS

SRAM X7, trigger

REAR DERAILLEUR

SRAM GX, Type 2.1, long cage, 10-speed

BOTTOM BRACKET

PF30 BB, 100mm

CHAINRINGS

28T, steel

CRANKSET

Stout direct mount, PF30, 28t

CHAIN

KMC X10, 10-speed w/ Missing Link™

COCKPIT

STEM

Ahead 3D-forged alloy, 31.8mm clamp, 6-degree rise

SEATPOST

Alloy, 12mm offset, 2-bolt clamp, 30.9mm

SADDLE

Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm

GRIPS

Specialized MTB Grip, lock-on

HANDLEBARS

Double-butted alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 750mm width, 31.8mm

BRAKES

FRONT BRAKE

Tektro Aries, mechanical disc, organic pad, 203/180mm rotor

REAR BRAKE

Tektro Aries, mechanical disc, organic pad, 180/160mm rotor

ACCESSORIES

PEDALS

Specialized Platform, Cr-Mo, 9/16" spindle

* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.

Geometry

SMLXL
Crank Length170MM175MM175MM175MM
Handlebar Width750MM750MM750MM750MM
Stem Length60MM60MM70MM70MM
Saddle Width143mm143mm143mm143mm
Seatpost Length350MM350MM400MM400MM
Stack590mm600mm614mm628mm
Reach395mm420mm437mm458mm
Head Tube Length110mm120mm135mm150mm
Head Tube Angle70.5°70.5°70.5°70.5°
BB Height316mm316mm316mm316mm
BB Drop60mm60mm60mm60mm
Trail84mm84mm84mm84mm
Fork Length, Full467mm467mm467mm467mm
Fork Rake/Offset46mm46mm46mm46mm
Front Center634mm663mm685mm711mm
Chainstay Length455mm455mm455mm455mm
Wheelbase1083mm1111mm1133mm1159mm
Top Tube Length, Horizontal576mm603mm625mm650mm
Bike Standover Height754mm786mm812mm840mm
Seat Tube Length394mm445mm483mm533mm
Seat Tube Angle73°73°73°73°
Geometry

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