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Save money and space with the Adjustable Kettlebell! Ranges from 12kg-20.5kg, in as little as 0.5kg increments. Add the expansion pack to have a 12-32kg weight range.
FEATURES • 35mm handle • 11″ height • 12-32kg range • Competition-styled • Steel shell • Iron weight plates • Internally-loaded • Tools included
“This thing is legit. It feels solid, it’s easy to change, it looks AND feels like a legitimate competition style kettlebell. Couldn’t be more impressed.” – Chris S.
This Adjustable Kettlebell can range from 12kg-32kg in 0.5kg increments, so you save money and space — no matter what exercises you (Turkish) get up to.
| Brand | Bells of Steel |
| Empty Shell Weight | 26.5lbs/12kg |
| Fully Loaded Weight | 70.5lbs/32kg |
| Total Height | 11"/279mm |
| Shell Diameter | 8.25"/210mm |
| Handle Diameter | 35mm |
| Handle Width | 7.5"/191mm |
| Window Height | 2.25"/57mm |
| Window Width | 4.75"/121mm |
| Plate Increments | 1lb/0.5kg |
| Plate Units | Kilograms |
| Coating | Powder Coat |
| Shell Material | Steel |
| Plate Material | Iron |
| Tools | Included |
| Warranty | Limited Lifetime |
IMPORTANT: The Adjustable Kettlebell is a fantastic tool, but it is not recommended when a fast transition of sizes is needed since changing the weights takes 1-2 minutes.
Check out our free 7 part video series “Kettlebells for Absolute Beginners”
If you’re a serious kettlebell’er, you know that you should practice like you play. This adjustable kettlebell closely matches the feeling and dimensions of pro-grade kettlebells — 35mm handle, competition-sized shell, and 11″ height — so you can master your swings, cleans & presses in sport-specific fashion (vintage leotard not included)🤸🏻♀️
Adjusting the weights in your adjustable kettlebell takes only 1-2 minutes. Use the included Allen key to undo the bottom screw, remove the bottom part of the shell, loosen the nut using the included hex nut wrench, and swap whatever plates you need. Reverse these steps to reassemble, and voilà! You’re ready to swing into your next set.
Our competitors rarely offer plates smaller than 2kg, so you typically can’t do 13kg or 31kg with theirs. But the base model of the B.o.S adjustable kettlebell has a 0.5kg AND 1kg plate, so you can micro-load every step of the way. And when 2kg increases become too hard, you can add as little as 0.5kg for a more manageable workload.
Kettlebells are compact, so you can take them almost anywhere. But an adjustable kettlebell is on a whole nother’ level. With it, you can get an insanely scalable workout anywhere, anytime — at the outdoor fitness park, deep in the woods or at your kid’s soccer game. And while they’re scoring goals on the field, you’ll be scoring gainzzz in your fitness 💪🏻
With the expansion pack, the adjustable kettlebell can weigh between 12kg (empty shell) to 32kg (fully loaded) in 0.5kg increments.
The dimensions of the adjustable kettlebell are:
The finish on the adjustable kettlebell is a smooth & glossy powder coat, offering a premium feel. This finish is an improvement compared to our first version, and is better than the finish on the adjustable kettlebells of most of our competitors.
The Bells of Steel adjustable kettlebell works by having its weight plates loaded on a center rod inside a steel shell. The weight adjustments are done internally (inside the shell), without changing the shell’s size.
To adjust this adjustable kettlebell, use the included Allen key to undo the bottom screw and remove the bottom part of the shell. Loosen the nut using the included hex nut wrench, and swap whatever plates you need. Reverse these steps to reassemble the adjustable kettlebell.
It only takes 1-2 minutes to change the weight of this adjustable kettlebell. Many kettlebell users find that this downtime helps them recover and improves their focus for the next set.
You can make 41 different weight increments using this adjustable kettlebell: 12kg, 12.5, 13, 13.5, 14, 14.5, 15, 15.5, 16, 16.5, 17, 17.5, 18, 18.5, 19, 19.5, 20, 20.5, 21, 21.5, 22, 22.5, 23, 23.5, 24, 24.5, 25, 25.5, 26, 26.5, 27, 27.5, 28, 28.5, 29, 29.5, 30, 30.5, 31, 31.5, and 32kg.
*You’ll technically have 33.5kg worth of weight if you buy the expansion pack but the same 32kg limit still applies, just like the first version of our adjustable kettlebell. This ensures that it closely aligns with the height of competition kettlebells.
If you find your adjustable kettlebell rattles in use, you’ll need to buy two separate M24 nuts for this added fix. Screw one nut onto the threaded center column, then add a second nut in direct contact and lock them by counter-screwing them together. Add your plates, then add two more nuts and counter-screw them together as well. Please note that this will make it difficult to loosen the nuts and weight changes will take longer. For a detailed explanation of this, check out this timestamp on Mark Wildman’s Youtube video.
To open the stuck shell of an adjustable kettlebell, grab a hammer and lay the adjustable kettlebell on something soft like a folded towel. Insert the Allen key into the bottom screw and while holding it in place, firmly strike the long part of the Allen key with the hammer until the screw physically turns. Then, you can loosen the screw with the key by hand to open the stuck shell.
Here’s how this adjustable kettlebell differs from our first version:
There’s a slight difference in the weight distribution of an adjustable kettlebell that makes it feel more like a cast kettlebell. However, this is rarely enough of an issue that it outweighs the adjustable kettlebell’s benefits.
The 20.5kg base model of the adjustable kettlebell includes:
The 13kg expansion pack of the adjustable kettlebell includes:
The shipping box dimensions of the 20.5kg adjustable kettelbell are:
The shipping box dimensions of the 13kg expansion pack are:
This adjustable kettlebell is covered under our Limited Lifetime Warranty, which guarantees that it will not break under normal use and protects against defects in material, function and workmanship.
USworks great when put together, takes 5 min to change out. only issue is that if I do not really crank the bolt down tight, the plates will start to spin during movements
Hi Steven, Thank you for reviewing our adjustable kettlebell. We are so happy that you find it easy to adjust and put together. We will see about making the plates less spin able in the future and thank you for your feedback. Sincerely, Marcus & the BoS team
USLike me, you have probably seen several adjustable kettlebells that were oddly shaped and way too light. Finally someone did it right. I was worried that being internally plate loaded would make the bell feel unbalanced, but it has the feel of a solid bell. It only takes a minute or two to change weights with the included wrenches, and there is no rattling when the bolts are snugged. I put this bell through the paces of swings, snatches, and flow workouts with zero problems. I've been a kettlebell user for over 10 years and would highly recommend this product.
Hi Frank, Thank you so much for taking the time to review our adjustable kettlebell and for the 5 star review . We are thrilled to hear it has been put through its paces and kept up! With 10 years of knowledge we trust you know your kettlebells, and we thank you for recommending ours! Sincerely, Marcus & the BoS team
USi have handled adjustable kettlebells from three other suppliers and bells of steel is by far the best made of the bunch.. the fit and finish is flawless..
Hi Russell, Thank you so much for the 5 star review of our adjustable kettlebell. We are so happy to hear you have been pleased with the make an design or our bell and we hope to serve you again soon! Sincerely, Marcus & the BoS team
Love this kettlebell! Costs Less than kettlebell kings, but said to be the same. I almost bought a used kb kings adjustable bell right around the time I got this! I have an assortment of 16-20kg bells, but this allows me to do doubles with a competition bell I have, and allows challenging weights as a single. Keeps my crowded garage from pinching my fitness setup. The best product you could buy for fitness & kb training. You won’t be disappointed!
Hi there, Thank you so much for the 5 star review of our 12-32kg kettlebell. We are delighted you have enjoyed this item, from its easy adjustments to its heavier weight increment. We hope you continue to find joy in it for many years to come ! Sincerely, Marcus & the BoS team
USWell engineered, good quality. Excellent for dialing just the right weight. The two nut design works very well to keep the plates centered and locked in place inside the shell. Customer service fantastic in working out shipping over the ocean. Thanks Bells of Steel!
Hi there, Thank you for your review of our adjustable kettlebell. We are thrilled you found it to be well engineered and of good quality. We hope to serve you again soon! Sincerely, Marcus & the BoS team
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