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2017 Fatboy SE

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If having fun for the sake of having fun sounds appealing to you, "going fat" will…

Product Details

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.
Durable 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.

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

SUSPENSION

FORK

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

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 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""

REAR TIRE

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

INNER TUBES

Standard, Presta valve

DRIVETRAIN

FRONT DERAILLEUR

SRAM X5, low direct-mount, 2x10

REAR DERAILLEUR

SRAM X5, long cage, 10-speed

SHIFT LEVERS

SRAM X5, 10-speed, trigger

CASSETTE

Sunrace, 10-speed, 11-36t

CHAIN

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

CRANKSET

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

BOTTOM BRACKET

BB30, sealed cartridge bearings

COCKPIT

STEM

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

HANDLEBARS

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

GRIPS

Specialized MTB Grip, lock-on

SADDLE

Body Geometry Henge Sport, steel rails, 143mm

SEATPOST

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

BRAKES

REAR BRAKE

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

FRONT 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

	S	M	L	XL
Crank Length	170mm	175mm	175mm	175mm
Handlebar Width	750mm	750mm	750mm	750mm
Stem Length	60mm	60mm	70mm	70mm
Saddle Width	143mm	143mm	143mm	143mm
Seatpost Length	350mm	350mm	400mm	400mm
Seat-Tube Angle	73°	73°	73°	73°
Head-Tube Length	110mm	120mm	135mm	150mm
Head-Tube Angle	70.5°	70.5°	70.5°	70.5°
Chain-Stay Length	455mm	455mm	455mm	455mm
Front-Center	634mm	663mm	685mm	711mm
B-B Drop	60mm	60mm	60mm	60mm
B-B Height	316mm	316mm	316mm	316mm
Bike Stand-Over Height	754mm	786mm	812mm	840mm
Fork Length (full)	467mm	467mm	467mm	467mm
Top-Tube Length (horizontal)	576mm	603mm	625mm	650mm
Seat-Tube Length	394mm	445mm	483mm	533mm
Stack	590mm	600mm	614mm	628mm
Reach	395mm	420mm	437mm	458mm
Trail	84mm	84mm	84mm	84mm
Fork Rake/Offset	46mm	46mm	46mm	46mm
Wheelbase	1083mm	1111mm	1133mm	1159mm