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2017 Specialized

Fatboy SE

A 26″ aluminum frame rigid fat bike with mid-range components and tektro mechanical disc brakes.
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FrameAluminum
SuspensionRigid
ForkAluminum
Wheels26″ Aluminum
Drivetrain2 × 10
GroupsetX5
BrakesTektro Mechanical Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Fatboy SE
Other Fat bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

20 mph

Fatboy SE

23 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Reviews
BikeRadar
Specialized Fatboy Comp Carbon review

May 2016 · Seb Stott

Despite a couple of component niggles, the Fatboy has huge potential to dominate any fat bike race. Buy if you want a fast, capable and well-appointed fatty to race with

Highs
  • Light, speedy, well finished and perfect for mile-munching

Lows
  • You'll want to switch the stock tyres for snow, 203mm rotors are overkill, gearing is a little narrow

Read Review

Enduro Mountainbike Magazine
Specialized Fatboy 20 Review: Kids Bike on Steroids

Mar 2016 · Evan Phillips

Fatbikes are polarizing, especially for our kids. But are they any good for lightweight shredders? We find out with the Specialized Fatboy 20.

Read Review

BIKE Magazine
Specialized Fatboy Expert review - BIKE

Feb 2015

We reviewed Specialized's Fatboy Expert on the frigid, snowy trails of Marquette, MI to see how it held up to proper winter conditions.

Read Review

Canadian Cycling Magazine
Specialized Fatboy 24 and Fatboy 20: Fat bikes for small riders

Nov 2014 · Canadian Cycling Magazine

Specialized Canada has announced that two fat bikes for young riders will be available in mid-December. Both the Specialized Fatboy 24 and Fatboy 20 will

Read Review

Mountain Bike Action
Bike Test: SPECIALIZED FATBOY EXPERT

Nov 2014 · MBA Action

Let's kick back and have some fun

Read Review

MTBR
Specialized Fatboy

Mar 2014 · Francis Cebedo

Fatbiking is about fun, adventure, determination, accomplishment, and a little bit of insanity. Specialized has rolled all of this up into a nice package that makes me actually want to go out in 12 degree temperatures to ride in the snow. - Mtbr.com

Read Review

Geometry
Specs
Build
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

BB StandardBB30, Press Fit

Fork

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

Bottom Bracket

BB30, sealed cartridge bearings

Stem

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

Handlebar

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

Saddle

Body Geometry Henge Sport, steel rails, 143mm

Seatpost

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

TypeRigid

Pedals

Specialized Dirt Pedals

Grips

Specialized MTB Grip, lock-on

Groupset
Rear Derailleur

SRAM X5, long cage, 10-speed

Front Derailleur

SRAM X5, low direct-mount, 2x10

Crank

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

Shifters

SRAM X5, 10-speed, trigger

Cassette

Sunrace, 10-speed, 11-36t

Chain

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

Brakes

Front: Tektro Aries, mechanical disc, organic pads, 160mm rotor, Rear: Tektro Aries, mechanical disc, organic pads, 160mm rotor

TypeTektro Mechanical Disc

Wheels
Rims

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

Spokes

Stainless, black, 14g

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

Tires

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

Rider Notes
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First added November 6

Last updated November 6

Not listed for 2,401 days