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2016 Specialized

Fatboy Trail

A 26″ aluminum frame hardtail fat bike with upper mid-range components.
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FrameAluminum
SuspensionHardtail
ForkRockShox Bluto RL
Wheels26″ Aluminum
Drivetrain1 × 10
GroupsetX7
BrakesTektro Gemini Hydraulic Disc
SeatpostDropper
Where to Buy
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Insights
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 Trail

23 mph

Similar Bikes

Highest gear

(descending)

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.

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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.

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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

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Mountain Bike Action
Bike Test: SPECIALIZED FATBOY EXPERT

Nov 2014 · MBA Action

Let's kick back and have some fun

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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

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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 StandardPF30, Press Fit

Fork

RockShox Bluto RL, Solo Air spring, Motion Control damping, external rebound adjust, mag lowers, tapered alloy steerer, 32mm alloy stanchions, disc mount, QR 15mm thru-axle for 150mm hub spacing

Spring TypeAir

Bottom Bracket

Samox, PF30, sealed cartridge

Headset

1-1/8"" upper, 1-1/2"" lower, threadless, Campy style, cartridge bearings

Stem

Specialized Stout XC, 3D forged alloy, 4-bolt, 6-degree rise, anti-corrosion hardware

Handlebar

Specialized Stout XC, double-butted 6061 alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 31.8mm

Saddle

Body Geometry Henge Sport, steel rails, 143mm

Seatpost

TranzX YSP02 dropper, infinite adjust, external cable routing, remote lever, 30.9mm, S: 100mm travel, M/L/XL: 120mm travel

TypeDropper

Pedals

Nylon, 1 pc. body, 9/16"", w/ reflectors

Grips

Specialized Sip Grip, light lock-on, half-waffle, S/M: regular thickness, L/XL: XL thickness

Groupset
Rear Derailleur

SRAM X7 Type 2.1, 10-speed, long cage

Crank

Specialized Stout XC Pro, forged alloy, 30mm alloy spindle, 100mm spindle width, 28T, 76mm BCD spider

Shifters

SRAM X7, 10-speed, trigger

Cassette

Custom Sunrace, wide range, 10-speed, 11-40t

Chain

KMC X10L, 10-speed, w/ reusable MissingLink

Brakes

Front: Tektro Gemini, hydraulic disc, resin pads, I-spec compatible, Rear: Tektro Gemini, hydraulic disc, resin pads, I-spec compatible

TypeTektro Gemini Hydraulic Disc

Brake Levers

Tektro Gemini, hydraulic, reach adjust, I-spec compatible

Wheels
Rims

Specialized Stout XC 90, disc, alloy, single wall, 90mm wide, sleeve joint, hookless design, 32h

Spokes

Stainless, 14g, black

Front Hub

Specialized Stout XC 150, Hi Hi disc, double-sealed cartridge bearings, 15mm thru-axle, 32h

Rear Hub

Specialized Stout XC 190, Hi Hi disc, alloy, sealed cartridge bearings, QR, 32h

Tires

Front: Specialized Ground Control Fat, 120TPI, folding bead, 26x4.6"", Rear: Specialized Ground Control Fat, 120TPI, folding bead, 26x4.6""

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First added July 9

Last updated July 9

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