Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices

Today’s Deals

2015 Specialized

Fatboy Frameset

A 26″ aluminum frame fat frameset with modest components.

FrameAluminum
ForkCarbon
Wheels26″
Groupsete*thirteen TRS Plus
Where to Buy
Similar Bikes
Top Comparison
Insights
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

Summary

The Specialized Fatboy is celebrated for its versatility and performance across various conditions, from snow to sand, making it a standout in the fatbike category. Its design emphasizes stability and traction, with features like wide tires and a carbon fork enhancing ride quality. While it excels in challenging terrains, some reviews note its handling could be more nimble in tight spaces.

Pros
  • Excellent performance on snow and sand due to wide tires

  • Lightweight and efficient design for a fatbike

  • Stable and comfortable ride with carbon fork

  • Encourages active outdoor play, especially among kids

  • Aggressive geometry for responsive handling

Cons
  • Less nimble in quick, tight singletrack due to long chainstays

  • Requires attention in high-speed corners and steep trails

  • Some components may need upgrading for optimal performance

Key Quotes
The Fatboy has certainly gone through the most drastic evolution, transforming from a Y-shaped BMX rig to a chopper-style beach cruiser to a high-performance fatbike.
BIKE Magazine logoBIKE Magazine
One of the fastest fatties out there
BikeRadar logoBikeRadar
There is something about the Specialized Fatboy 20 that makes children happy, even if it doesn’t make sense to adults.
Enduro Mountainbike Magazine logoEnduro Mountainbike Magazine

Feedback?

View all 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 Premium Aluminum, fully butted w/ smooth welds, tapered headtube, post-mount disc dropouts, 190mm rear hub spacing, replaceable alloy derailleur hanger

BB StandardPF30, Press Fit

Fork

Specialized FACT carbon, full monocoque, tapered steerer, 135mm hub spacing

Bottom Bracket

e.thirteen, PF30, included w/ crankset

Headset

1-1/8"" upper, 1-1/2"" lower, Campy style, integrated sealed cartridge bearings, split crown race, 3.8mm cone spacer

Groupset
Crank

Custom e.thirteen, TRS+, PF30, 100mm spindle, w/ BB

Rider Notes
Riders Also Viewed

First added July 9

Last updated July 9

Not listed for 2,521 days