Fatboy

The security and control that the Fatboy provides is unparalleled. Those fat, 27.5x3.8 tires dramatically boost your traction, grip, and floatation over the trail. We built the Fatboy with a durable list of components, like a SRAM 12-speed one-by drivetrain, that perform season after season.

A VERY FAT FLAVOR OF ADVENTURE

It boils down to a single word: adventure. The Fatboy's massive tires (27.5x3.8") float over rocks, roots, sand, snow, ice.... Let's put it this way, if it's part of mother earth, those big tires will roll right over it with a mix of comfort and traction that's unrivaled. Get out there.

• Premium, M5 alloy frame is light on the scales, yet holds up to any adventure.

• Lightweight carbon-fiber fork provides tons of compliance and absorbs chatter.

• The SRAM SX Eagle 1X drivetrain is simple, yet gives you plenty of gearing to tackle any climb.

Manual Downloads

Specialized Bicycle Owner's Manual (All Languages)

Trainer Usage Addendum to the Bicycle Owner's Manual

Specialized Bicycle Owner's Manual Addendum: Riding With Kids

Tire Pressure and Handlebar Grips Addendum

Dodatek - POUŽITÍ TRENAŽÉRU

Technical Specifications

FRAMESET

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 rear thru-axle
SEAT BINDER	Alloy, bolt-type, 34.9mm

SUSPENSION

FORK	Specialized FACT carbon, 46mm offset, tapered steerer, 150mm axle

COCKPIT

STEM	Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
HANDLEBARS	Stout Riser, double-butted alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 750mm / 780mm width, 31.8mm
GRIPS	Specialized Sip grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
SADDLE	Specialized Bridge, size specific, 143/155
SEATPOST	Specialized 2-bolt head, forged alloy, 8mm offset, micro-adjust, 30.9mm

BRAKES

FRONT BRAKE	SRAM Level T, hydraulic disc, 200/180mm
REAR BRAKE	SRAM Level T, hydraulic disc, 180/160mm

DRIVETRAIN

REAR DERAILLEUR	SRAM SX Eagle, 12-speed
SHIFT LEVERS	SRAM SX Eagle, trigger, 12-speed
CASSETTE	SRAM PG-1210 Eagle, 11-50t
CHAIN	SRAM SX Eagle, 12-speed w/ PowerLock®
CRANKSET	SRAM X1 Alloy
BOTTOM BRACKET	SRAM DUB, BSA

WHEELS

RIMS	Stout XC 80, 27.5", alloy, 76mm internal width, disc-specific, tubeless ready
FRONT HUB	Stout Pro 150, sealed cartridge bearings, 6-bolt disc, 15x150mm, 32h
REAR HUB	Stout Pro 197, sealed cartridge bearings, 6-bolt disc, 12x197mm, 32h
SPOKES	Stainless, 14g
FRONT TIRE	Maxxis Minion FBF, 120 TPI, EXO, 27.5 x 3.8"
REAR TIRE	Maxxis Minion FBR, 120 TPI, EXO, 27.5 x 3.8"
INNER TUBES	Presta valve

* Specifications are subject to change without notice

Geometry

Fatboy - Geometry

S M L XL

	S	M	L	XL
Bike Standover Height, Actual	765mm	786mm	813mm	847mm
Crank Length	170MM	175MM	175MM	175MM
Stem Length	60MM	60MM	70MM	70MM
Seatpost Length	350MM	350MM	400MM	400MM
Saddle Width	155mm	143mm	143mm	143mm
Handlebar Width	750MM	750MM	750MM	750MM
Reach	395mm	420mm	437mm	458mm
Top Tube Length, Horizontal	579mm	604mm	626mm	651mm
Stack	602mm	602mm	617mm	632mm
Wheelbase	1088mm	1113mm	1135mm	1161mm
Chainstay Length	455mm	455mm	455mm	455mm
Front Center	640mm	665mm	687mm	713mm
BB Drop	60mm	60mm	60mm	60mm
BB Height	312mm	312mm	312mm	312mm
Seat Tube Angle	73mm	73mm	73mm	73mm
Head Tube Angle	71°	71°	71°	71°
Seat Tube Length	394mm	434mm	470mm	520mm
Head Tube Length	94mm	94mm	110mm	125mm
Fork Rake/Offset	47mm	47mm	47mm	47mm
Fork Length, Full	496mm	496mm	496mm	496mm
Trail	83mm	83mm	83mm	83mm

Size Chart