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Fatboy SE

2017 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

Specialized 26"" disc front, 21mm depth, 86mm internal width, 32h

FRONT HUB

Specialized Stout XC 135, disc alloy, loose ball bearings, bolt-on axle, 32h

REAR TIRE

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

REAR HUB

Specialized disc, sealed cartridge bearings, alloy body cassette, 10mm steel QR, 32h

SPOKES

Stainless, black, 14g

FRONT TIRE

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

INNER TUBES

Standard, Presta valve

SUSPENSION

FORK

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

DRIVETRAIN

CASSETTE

Sunrace, 10-speed, 11-36t

SHIFT LEVERS

SRAM X5, 10-speed, trigger

FRONT DERAILLEUR

SRAM X5, low direct-mount, 2x10

REAR DERAILLEUR

SRAM X5, long cage, 10-speed

BOTTOM BRACKET

BB30, sealed cartridge bearings

CRANKSET

Custom Samox, forged alloy, 2x10, Cr-Mo spindle, 104mm BCD spider

CHAIN

KMC X10EPT Anti-Rust, 10-speed, w/reusable MissingLink

COCKPIT

STEM

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

SADDLE

Body Geometry Henge Sport, steel rails, 143mm

SEATPOST

Alloy, 12.5mm offset, 2-bolt clamp, 27.2mm

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 pads, 160mm rotor 

REAR BRAKE

Tektro Aries, mechanical disc, organic pads, 160mm rotor 

ACCESSORIES

PEDALS

Specialized Dirt Pedals

* 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
Seat-Tube Angle73°73°73°73°
Head-Tube Length110mm120mm135mm150mm
Head-Tube Angle70.5°70.5°70.5°70.5°
Chain-Stay Length455mm455mm455mm455mm
Front-Center634mm663mm685mm711mm
B-B Drop60mm60mm60mm60mm
B-B Height316mm316mm316mm316mm
Bike Stand-Over Height754mm786mm812mm840mm
Fork Length (full)467mm467mm467mm467mm
Top-Tube Length (horizontal)576mm603mm625mm650mm
Seat-Tube Length394mm445mm483mm533mm
Stack590mm600mm614mm628mm
Reach395mm420mm437mm458mm
Trail84mm84mm84mm84mm
Fork Rake/Offset46mm46mm46mm46mm
Wheelbase1083mm1111mm1133mm1159mm
Geometry

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