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Fatboy SE

2020 Fatboy SE

It’s simple: fat tires—really fat tires—equal more fun. Especially if you define fun as insane levels of traction and rides that take you deep into places you never dreamed bikes could go. We built the Fatboy SE with durable, no-nonsense components that perform season after season.

A VERY FAT FLAVOR OF ADVENTURE

It boils down to a single word: adventure. The Fatboy’s massive tires (26x4.6”) 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.

• Alloy fork with air-formed legs pairs perfectly with fat tires to erase trail chatter.

• Shimano single-ring 10-speed drivetrain is simple, accurate and reliable.

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 Alloy, 47mm offset, tapered steerer, 150mm axle

COCKPIT

STEM

Stout 3D-forged alloy, 31.8mm, 6-degree rise

HANDLEBARS

Stout Riser, double-butted alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 750mm / 780mm width, 31.8mm

GRIPS

Specialized MTB Grip, lock-on

SADDLE

Specialized Bridge, size specific, 143/155

SEATPOST

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

BRAKES

FRONT BRAKE

Tektro Aries, mechanical disc, 203/180mm

REAR BRAKE

Tektro Aries, mechanical disc, 180/160mm

DRIVETRAIN

REAR DERAILLEUR

Shimano Deore, Shadow Plus, GS cage, 10-speed

SHIFT LEVERS

Shimano Deore, 10-speed

CASSETTE

SunRace, 11-42t, 10-speed

CHAIN

KMC X10, 10-speed w/ reusable Missing Link™

CRANKSET

Stout Pro, direct-mount

CHAINRINGS

28T

BOTTOM BRACKET

BSA, threaded

WHEELS

RIMS

Stout XC 80, 26", 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

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

REAR TIRE

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

INNER TUBES

Presta, 40mm valve

* 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 Width155mm143mm143mm143mm
Seatpost Length350MM350MM400MM400MM
Bike Standover Height, Actual765mm786mm813mm847mm
Stack602mm602mm617mm632mm
Reach395mm420mm437mm458mm
Head Tube Length94mm94mm110mm125mm
Head Tube Angle71°71°71°71°
BB Height316mm316mm316mm316mm
BB Drop60mm60mm60mm60mm
Trail83mm83mm83mm83mm
Fork Length, Full496mm496mm496mm496mm
Fork Rake/Offset47mm47mm47mm47mm
Front Center640mm665mm687mm713mm
Chainstay Length455mm455mm455mm455mm
Wheelbase1088mm1113mm1135mm1161mm
Top Tube Length, Horizontal579mm604mm626mm651mm
Seat Tube Length394mm434mm470mm520mm
Seat Tube Angle73mm73mm73mm73mm
Geometry

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