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Thompson Fatbells Review – Worth the Cash?

Rogue Donnie Thompson Fatbell Review

A few months back I picked up a couple pairs of the Thompson Fatbells. After having spent a good amount of time messing around and training with these bad boys, I figured I’d spend a few minutes telling you what I think about them.

For those of you who have no idea what a Fatbell even is, well they are essentially a kettlebell with the handle moved to the center (or the core) of the bell for the purpose of balancing the weight equally around the hand. A Fatbell is basically the unification of a kettlebell and a dumbbell.

Inside shot of the Thompson Fatbell

Some of the claimed benefits of this clever design include a reduction of shearing force, better load distribution on muscles and connective tissues, and less strain on the wrists. Well, that’s the claim anyway, but we’ll see.

My Fatbells

I purchased a pair of 26-pound and 35-pound Fatbells. I chose these two weight sizes because my initial impression of this product was that they were going to make a much better dumbbell than kettlebell, and these two weights happen to be extremely versatile as dumbbells (lateral and front raises, arm bars, bicep curls, flyes and reverse flyes, and so on.) Also, going with relatively light Fatbells made checking these out more affordable – certainly more so than buying 80- or 90-pound bells.

In case you’re wondering why I had the impression that Fatbells would make a better dumbbell replacement than kettlebell replacement before ever seeing or handling one, it’s simply because it seemed unlikely that I’d be able to get two hands inside a Fatbell. The way I saw it, if I could use Fatbells for anything I could use a dumbbell for, and I could use Fatbells for just about any one-handed kettlebell movement, but I could not use a Fatbell for two-handed kettlebell movements, then it really doesn’t replace a kettlebell.

Anyway, that was just my initial impression from reading the product description and looking at the pictures.

Actual Initial Impression

Upon receiving my Fatbells and playing around with them for a little while, I knew that I liked them. The weight does feel more balanced, and once you get used to them a little bit they do feel easier on the wrists. Now as far as there being more load distribution on muscles and connective tissue, I’m not sure I’m qualified to agree or disagree with such a claim. However, interestingly enough, Fatbells do feel heavier than dumbbells of the same weight, which is peculiar – so perhaps the claim is true.

That said, I was right about not getting two hands inside one of these – no way in hell. Looking at the images on Rogue’s site (shown below), it doesn’t even look as though the opening gets much bigger as the weight goes up. Now there are ways to hold the Fatbell to do two-handed swings, but it’s certainly not ideal, nor is it particularly safe. So yeah, Fatbells are definitely more of a dumbbell than a kettlebell.

Rogue Thompson Fatbell Collection - illustrating that the size of the opening doesn't seem to get larger as the weights go up

Despite that, I still think that Fatbells are a really neat and ingenious idea, and they definitely have their place in a gym. They no doubt improve upon the dumbbell, and maybe even completely replace dumbbells – and they half replace the kettlebell in the sense that one-handed movements are doable. Again though, it’s a no-go on the two-handed stuff.

Worth the Cash?

Thompson Fatbells could easily replace dumbbells in a gym. Sure, you and I could both find a couple random movements with dumbbells that wouldn’t work well with Fatbells, but overall these are just as good if not better than a dumbbell. The problem is that they are expensive.

To give you an idea, a pair of 25-pound rubber hex dumbbells runs about $60, while a pair of 26-pound Fatbells goes for $90. A pair of 70-lb dumbbells sells for about $170, while a pair of 70- pound Fatbells is $216. The gap gets smaller as they get heavier, but never is the Fatbell cheaper.

You also have to deal with large and inconsistent jumps in weight. Instead of 5-pound increments like you’d have with dumbbells, you get jumps ranging from 4-pounds to over 20-pounds; with the average being about 9-pounds. Hopefully at some point Rogue fills in the larger gaps with more units, but I’m thinking that’s unlikely since Fatbells, while in pounds, are based on standard kettlebell weights (that are in kilograms.)

All that being said, I still really like Fatbells. Honestly I’d have already ordered more of them by now, but I have the problem of already owning a full set of dumbbells, so the cost is… well, unjustifiable. Now had I not already owned nearly 20-pairs of dumbbells, I’d own more Fatbells for sure.

Pros [+]

  • Even distribution of weight around the hand making just about any movement easier on the wrists, and this is true whether or not the movement is normally done with dumbbells or kettlebells.
  • Extremely versatile; push, pull, clean, lunge, snatch, press, row, curl, chop, swing, and toss all with the same equipment. Fatbells almost completely replace the need for dumbbells, and aside from two-handed movements they do the same for standard kettlebells.

  • Less joint shearing and greater load distribution than dumbbells and traditional kettlebells. Again, this is a claim made by Rogue and Thompson, and other than to say that work done with Fatbells feels more productive, I cannot confirm or deny this claim with any real certainty.
  • Sturdy flat base makes them great for Renegade Rows, bear walks, and even push-up and plank variations.
  • Fatbells have a smaller overall diameter than equivalent dumbbells and most kettlebells, making for a potentially larger ROM in certain movements.
Fatbell versus kettlebell - size comparison

Side-by-side size comparison of Fatbells and kettlebells

  • Cast iron design is durable, and standard Rogue powder-coating is easy to maintain. No heads to come loose like with standard hex dumbbells.

Cons [-]

  • Cost: A single Fatbell of every weight up to 100-pounds (97, actually) will set you back about $950. If you want pairs, double that. There are also a handful of Fatbells that exceed 100 pounds, and to include those pairs in your set is another $1000.
  • Big weight gaps between each Fatbell. This is the only reason why Fatbells could not 100% replace dumbbells – there is just too much weight difference between each unit. Dumbbells jump 5-pounds at a time, with smaller bells being 2½-pounds apart. Fatbells jump up about an average of 9-pounds. This large jumps make the progression of accessory lifts more difficult to manage.
  • Fatbells cannot be ditched at the end of a set as easily as dumbbells. Imagine trying to dump a pair of 80-pound Fatbells at the end of a set of presses – you can’t with your hand deep inside the things.
  • As previously mentioned, Fatbells are no good when it comes to the two-handed kettlebell movements. You’ll still need to own standard kettlebells for those.

My Favorite Use for Fatbells?

Arm Bars! Yes, I have a funny shoulder that requires a lot of re/pre-hab. Fatbells have become a nice addition to my ‘rotator repair’ tool box.

Here’s a good video on he Arm Bar in case you are unfamiliar. Jeff is using a kettlebell, but try it with your Fatbell after trying it with a kettlebell – you’ll see why I like the Fatbell more.

Check out Fatbells yourself at Rogue.


{ 3 comments… add one }
  • Steven Ward June 18, 2016, 11:19 am

    Guys who do a lot of dumbbell work like to put them together during exercises, fatbells you really can’t, heavy dumbbells often are dumped off after the final rep, fatbells you cannot, as you mentioned, kettlebell moves like cleans or anything using two hands you cannot do. I’ve found kettlebells are the best overall product to incorporate dumbbell moves and those of kettlebells. While a bit of an interesting product, not one that will take off. Also, most CrossFit gyms want cheaper not more, for the dollar spent. Even dumbbells that are already in CrossFit gyms now rarely get used vs. kettlebells. Sort of like inventing too many barbell options, there are only so many bars you need to choose from really, to accomplish the same thing, otherwise it’s just too hard to really see the differences.

  • Ross Bagley July 10, 2016, 11:51 pm

    I agree with the earlier sentiment: this is more of a dumbbell replacement than a kettlebell replacement. But only for those with lots of space. For a small garage gym like mine, there’s no way I’m going to get rid of the powerblocks that occupy about 2sf on the top of a shelf (with kettlebells underneath) and fill up space I don’t have with a rack of these. And there’s no way these replace kettlebells.

    The off-center handle of the kettlebell is part of what makes it such an amazing exercise tool. The additional “shearing force” and strain on the wrists is exactly the reason why you would choose a kettlebell over a dumbbell. A number of one-arm exercises (figure-8’s, competition swing, competition snatch, etc.) involve mid-air transitions that the fatbell can’t do. The additional length of the moment arm (over a dumbbell or one of these) in swinging exercises increases the effective load on your body for the same weight. If anything, on wrist loading and load distribution, I’m headed the other direction from these fatbells, looking at indian clubs and other highly offset weights to increase wrist and forearm loads still further.

    On size, if smaller sizes are desirable for increased range of movement, use RKC instead of Girevoy/competition kettlebells (since competition kettlebells are all the same size). The RKC bells will have a smaller ball than the fatbells at all weights and be much smaller than the competition bells at lighter weights.

    Rogue appears to be trying too hard to come up with something to differentiate themselves. Good luck to them, I suppose, but I don’t see this catching on.

    • jburgeson July 11, 2016, 8:44 pm

      Good points, Ross. Unbeknownst to most folks, Sorinex also has a version of the Fatbell, though I’m not sure which existed first.

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