Specialized Fatboy

Fat Bike News

July 14, 2013

At the Specialized Global Product launch, Specialized revealed a staggering amount of bikes, advanced materials and lab equipment. But the product that got the most cheers and celebration was the the Specialized Fatboy. This is Specialized’s entry in the fast-growing fat bike category. Long considered by many as a special purpose bike for snow or sand, the fat bike has surprised many riders with its versatility in any terrain and its ability to put a smile on the face of any rider.

Some basic specs of the Fatboy are:

  • Two Models called the Fatboy and Fatboy Expert
  • Aluminum Frame
  • Tapered Head Tube with Carbon Fork
  • 5” Tire Clearance
  • 26 X 4.8” TIRE – Ground Control Tread
  • 90mm Wide Rim – 795 Grams Per Rim
  • 135mm Front Hub
  • 190mm Rear Hub
  • Hydraulic Disc Brakes
  • 100mm wide PF30 bottom bracket
  • Weight is 29.9 lbs without pedals
  • Price is To Be Announced
Interview with Product Manager Todd Cannatelli

We interviewed Todd Cannatelli, Product Manager for the Fatboy and he answered our burning questions about the bike.

1) What is the difference between the Fatboy and Fatboy Expert. What are the weights, projected prices?

Both bikes feature the same frame, fork, rims, hubs, tires, tubes, and shifters. Here are the main differences between the two models:

Fatboy Expert

  • SRAM X0 rear derailleur
  • e.thirteen crankset/BB (36/22)
  • Shimano Deore brakes
  • Butted spokes
  • Alloy nipples
  • Specialized Bennie pedals
  • Weight: TBD (current show bike is approx. 30 lbs with Surly tires)
  • Pricing: TBD (targeting $2,500-2,750)


  • SRAM X7 carbon cage rear derailleur
  • Custom Samox crankset/BB (36/22)
  • Tektro Draco 2 hydraulic brakes
  • Plain gauge spokes
  • Brass nipples
  • Metal cage pedals
  • Weight: TBD
  • Pricing: TBD (targeting sub-$2,000)

2) What are the stock tires and what tire options will be available? Are the demo bikes equipped with Surly tires just temporary?

Yes, demo bikes with Surly tires are just temporary, which is one reason I can’t give final bike weights. We’re developing our own tire based on our Ground Control tread. It will be one tire, 26×4.8”, identical tread front and rear, 120 tpi.

3) The valve stem seems to be sticking out of the rim tape. Is that the final design or just temporary?

Yes, this is temporary as well. Some of the demo bikes had earlier rim designs. The show bikes have the accurate rim with a dedicated valve stem hole in the rim extrusion.

4) What are the details? Spec, Geometry

Geometry is essentially the same as our Crave 29, since the outside diameter of the 26×4.8” tire is almost exactly the same as a 29er. The Specialized Crave Geometry is available HERE.

5) What is the seatpost size? Is there dropper post routing?

Seatpost size is 30.9 on all models. We made this size for Command Post compatibility. No “dedicated” routing for Command Post is available at this time however.

6) Who is the customer for this bike?

This bike (and fatbikes in general) have broad appeal. The fatbike category is one of the fastest growing segments right now, and it’s a very approachable bike. For us, it’s really about having fun. But we didn’t want the performance attitude of our brand to be lost on this rider, so the focus was really on light weight and handling. If you rode the bike, you likely noticed how agile it was. We wanted to make sure this would be accessible and approachable to the general public, while still delivering the performance Specialized is known for, so the chassis, carbon fork, and light weight wheelset are just as at home on a race course as they are on a multi-day bike packing trip.

7) When can a customer buy it?

We’re hoping to have the bikes available to purchase late-2013.

Continue to page 3 for our riding impressions and full photo gallery »

About the author: Francis Cebedo

The founder of mtbr and roadbikereview, Francis Cebedo believes that every cyclist has a lot to teach and a lot to learn. "Our websites are communal hubs for sharing cycling experiences, trading adventure stories, and passing along product information and opinions." Francis' favorite bike is the last bike he rode, whether it's a dirt jumper, singlespeed, trail bike, lugged commuter or ultralight carbon road steed. Indeed, Francis loves cycling in all its forms and is happiest when infecting others with that same passion. Francis also believes that IPA will save America.

Related Articles

NOTE: There are two ways to comment on our articles: Facebook or Wordpress. Facebook uses your real name and can be posted on your wall while Wordpress uses our login system. Feel free to use either one.

Facebook Comments:

Wordpress Comments:

  • Tom says:

    Looks sweet, how many thousands will it cost?

  • Don says:

    Looks like another overpriced fat bike.

  • duggus says:

    Some weights would have been cool. Not much new here but still pretty nice to see a bike spec’d with a stock carbon fork for (what I’ve heard rumored) the price of other fat bikes that don’t come with a carbon fork. Another tire option and rims… so this is nice news.

  • DirtBiker says:

    Looks like the space between motorcycles and MTB’s is continuing to close … I could take the motor out of my 125 and have this … pretty much!

  • EMathy says:

    If you can’t innovate, copy. What are we supposed to be excited about, again?

  • Jim says:

    Mike Sinyard took a Fisher/Ritchey mtb over to Japan and told Giant (?) make me some of these. Specialized was built on copying. I own a couple Specialized bikes so I don’t hold it against them too much

    • JYC says:

      What means “copying”?
      Is taking an existing concept, putting some know-how and expertise behind with the objective to make it better, an act of “Copying” or “Plagiarism”?
      Personally, if it’s improving our trail/ride experience, I have nothing against that…

  • Shawnny says:

    I’ll pass!

  • gerald says:

    Now that Specialized has entered this niche market, reminds me of the big corporate breweries buying up the craft beer makers. Shame.

  • Surlyjeff says:

    Big brand surly copies , just great. Soo original

  • roger says:

    It’s not a 29er?

  • RobB says:

    I will stick with my FatBack! An original and not a copy!

  • junyr73 says:

    Who cares if it’s an “original” or a “copy”. Ride what you ride and and let others ride theirs. The point is that everyone that wants to gets a choice to have their own fun with the equipment of their choosing.

  • Tudor says:

    Does anyone know what size the bike pictued is?

  • Peter says:

    Awesome looking!!! Looks like the old observe trials bikes from years ago.Lots of fun!!!

  • 26? 29? Just ride says:

    Variety is what life is all about. niche going mainstream just means that the consumer gets more choice on bikes and kit surely that can’t be bad it shouldn’t matter whether your bike says trek , spesh or surly on the front if it makes you smile , who gives a fudge . Come on when we ride these things it should be about ridin not branding x

  • iride says:

    the fat bike mania is here so all the heavy hitters will be riding them , who cares , just wait a year when the fad is over and they will be a dime a dozen on kijiji . remember the pogo stick

  • Fatty says:

    I just got my Fatboy, this bike is awesome! its fast, nimble and fun to ride.

    Check it out 2014 Specialized Fatboy!

  • bigfoot jr says:


  • Tommy says:

    Will the guys with the green bike in picture five start writing articles he looks like my kind of biker. That being said I find the fatboy to be really ugly. I’m looking forward to the ice cream truck. But this is one of the better articles on mtbr lately.

  • singletrackmack says:

    Great add. Would be nice to see pics of the actual trail conditions you rode in rather than taking pics of the bike plopped in snow that’s too deep for any bike to ride in. I live in Tahoe and have been riding my 25 year old steel rigid in snow with $15 2.5″ tires for years. Lately I’ve been seeing these 2k to 5k fatty bikes out in the snow and have yet to see one ride in snow conditions that my 27lb steel worth about $200 can’t ride in.

  • Gary Edwards says:

    Have you had any problems with the bike creaking? I bought a Fat Boy in April. Love the bike! But it has developed a creak that even after sending the bike back to specialized….it still creaks. Just trying to see if this is common with this bike.
    Thanks Gary

  • Kyrke says:


    Great review. I just picked up a Fatboy and am taking it out on the trails today. What I’m interested in knowing is if anyone has recommendations for 29er wheels that would fit the 190mm rear dropouts. I’ve done some searching and can’t seem to find any wheels.


  • brian says:

    On my fatboy found the creaking was caused by uneven wear in the freehub LBS replaced it on warranty.love the bike in snow and dirt,haven’t rode my 29 fat stumpy in months.upgraded my samox cranks to raceface cinch turbine with30mmX175mm crankcrankpost and am really happy with performance.Coolest mtb bike I’ve owned in 30 yrs of riding this Pa.Rockheap we call Mt. Penn. If your thinking about riding fat you should testride the fatboy,it’s worth the time.

  • shawn bertagnole says:

    I am planning on buying a fatboy this season I work with a club call the Mountaineers here in Seattle and we own a ski lodge in the Cascades, meanylodge.org. I do not ski any longer and am hoping to attract snow bikes up there and lead tours of the area. We have very wet heavy snow here in Seattle so the biggest tires are a MUST have. This bike, or the Moonlander are pretty much it for off the shelf. But less weight and my required twist grip shifting for big mitten use might make this the best choice.

    • tomas Denizard says:

      Hola tengo una bicicleta moogose brutus 26×4″ cuato cuesta las piña para aserla de cambios atras y freno de disco alanta

  • John Palladini says:

    Well i have a Gary Fisher MTB and swore that i would not be buying another BIKE! Well i got on a FATBOY, my world has changed now! My friend got one and all i could say when i saw it was WOW i wanna ride it! Wrong thing to do, now a few months later i went to a bike shop and they let me test drive them all, what a drug this thing is! All i can say i do believe i can ride this in replace of my other bikes! cant wait to OWN one!

Leave a Reply

Your email address will not be published. Required fields are marked *





mtbr.com and the ConsumerReview Network are business units of Invenda Corporation

(C) Copyright 1996-2018. All Rights Reserved.