Logo Icon
Search Icon
Clear Icon
Logo Icon
  • Bikes
  • Parts
  • Apparel
  • Accessories
  • Custom
  • Sale
  • Inside Specialized
  • Support
  • Logo Icon
    Custom
    Arrow Back Icon
    Logo Icon
    Inside Specialized
    Arrow Back Icon
    Clear Icon
    My Location

    Enter your ZIP code so we can provide the most accurate inventory and delivery information.

    Location Pin Icon

    Use My Location

    See Full Map
    Clear Icon
    Set Your Preferred Retailer
    Search icon
    Location Pin Icon

    Use My Location

    See Full Map
    My Retailer

    None saved

    Other Stores Near You

    Fatboy SE

    Icon

    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

    Add Icon

    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

    Add Icon
    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

    Rider Reviews

    • 4.3
    • 4 Reviews

    Good bike, noisy front brake

    The bike is good, but clearly there is a problem with the front brake, it is noisy because the rotor touches the fork, when you ride. I had to grind the fork and remove 2mm where the brake pads are mounted and also replaced the rotor for a stronger one and since the noise is gone. I have installed a dropper post, change the pedals, handle bar, stem… I even use it for mountain biking during the summer, it’s a good bike and I will recommend it, however it is not perfect out of the box. I was a bit disappointed first because I was expecting a better quality from Specialized, I should not have to repair a brand new bike.

    Would Recommend?
    Yes!

    Name:
    Joey

    Helpful?

    The bike is great but the noise...

    I'm 6'6"" and the xl frame fits perfectly. However whenever you gain some speed the fork flexes and causes a grinding noise. Specialized warrantied my wheels thinking it'd solve the issue but it did not. They concluded the xl frames are prone to the noise due to the fork being longer. Other than the noise the bike rides like a dream.


    Name:
    Big D.

    Helpful?

    Love this bike.

    Live near Lake Michigan and am 71 years old. Light easy to handle and allows me to go wherever I want.


    Name:
    Soccer

    Helpful?