Best Adjustable Kettlebell · Kettlebells
The best adjustable kettlebells replace a rack — if you pick the right kind
Three adjustables: a cast iron bell that changes weight with a hex key and swings like the real thing, a plastic-shell bell that changes with a dial in a second, and the budget cast iron in between. What each trades, and who should buy fixed bells instead.
Rope & Rep is reader-supported. Product links go through our affiliate resolver and we may earn a commission from qualifying purchases at no cost to you. Prices are the retailer's and change — every button opens the live price on Amazon rather than showing a stale number.
A man balancing on kettlebells at an outdoor fitness event. Licensed stock photograph of the category — not the specific product.
Quick picks
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 | Titan Fitness Adjustable Competition Kettlebell (12–32 kg) A 12 kg competition-size shell with six cast iron plates (2, 2, 3, 3, 4, 6 kg) that sets almost every weight from 12 to 32 kg, 35 mm handle, flat base — the adjustable bell that swings like a real one. | Someone who wants one bell from 26 to 70 lb without a plastic shell | 8.3 | |
| 2 |  BowFlex SelectTech 840 Adjustable Kettlebell Six bells in one: 8, 12, 20, 25, 35 and 40 lb by turning a dial, in an 8.8 × 7 × 12.5 in. footprint — the adjustable bell for an apartment corner that can't hold a rack. | Replacing a beginner's first three bells with one object that fits under a desk | 7.4 | |
| 3 |  Yes4All Adjustable Kettlebell (10–40 lb) A cast iron, powder-coated adjustable bell with six settings from 10 to 40 lb and a flat base — the cheapest way to own an adjustable kettlebell that's still metal. | A budget adjustable bell for a beginner who'll outgrow 10 lb but not 40 lb | 7.9 |
Scores are our editorial judgment from published specs and mounting instructions, weighted for a renter or small-space trainer — not lab measurements. We have not tested these units.
Two ways to make a kettlebell adjustable
Plates inside a shell (Titan, Yes4All): a cast iron bell with a cavity holding cast iron plates, locked with a pin or a screw. It swings, racks and drops like a fixed bell because it is one; the cost is a minute with a tool to change weight. A dial with a plastic shell (BowFlex 840): a handle that locks onto a stack of plates with a turn, in a second — and a bell that is plastic on the outside, not for dropping, and with a flat handle that isn't ideal for snatches. Both are honest solutions to the same problem: no room for three bells.
The three by the specs
| Bell | Range | Settings | Adjust | Build | Size |
|---|---|---|---|---|---|
| Titan Adjustable Competition | 12–32 kg (26–70 lb) | 18 | Hex key + wrench, ~1 min | Cast iron shell + plates | 210 mm dia × 290 mm |
| BowFlex SelectTech 840 | 8–40 lb | 6 | Dial, seconds | Plastic shell over plates | 8.8 × 7 × 12.5 in. |
| Yes4All Adjustable 10–40 lb | 10–40 lb | 6 | Manual plates | Cast iron, powder coat | Not published |
Who an adjustable is for
Someone with one corner and no rack, who will use two or three weights regularly — a light bell for presses and get-ups, a heavier one for swings and squats. If you own one bell and will only ever own one, a fixed bell is cheaper and simpler. If you train at three weights and have nowhere to put three bells, the adjustable earns its price. The sizing guide tells you which weights you'll actually use.
Where each one wins
Titan: the widest range (26–70 lb) and the only one that behaves like a competition bell — same size at every setting, cast iron, a 35 mm handle. Swings hard, racks properly, can be set down like iron. Changing weight mid-session is a minute of hex key. BowFlex: the dial. Six weights in a second, in the footprint of one bell, which for circuits and for a studio is decisive. The plastic shell and flat handle mean no drops and no serious snatch work. Yes4All: cast iron at the lowest price, 10–40 lb; the plates are slower to change than either rival, and 40 lb is the ceiling.
The weight jumps
The BowFlex steps 8 → 12 → 20 → 25 → 35 → 40: fine for presses and squats, awkward for anyone who wants 30. The Titan steps about 1 kg from 12 to 32 — almost every weight. The Yes4All has six settings across 30 lb. If precise progression matters (it does for presses), the Titan.
How this list was built
We compared range, number of settings, adjustment mechanism, construction and dimensions from the makers' pages, and scored on the kettlebell rubric with adjustability at 20%. The Titan leads on range, build and swing feel; the BowFlex on speed and footprint; the Yes4All on price. No bells tested.
The picks in detail
Every pick, reviewed
Key specs
- Weights
- 12–32 kg in ~1 kg steps (18 settings)
- Handle
- 35 mm, 190 mm wide
- Size
- 210 mm dia × 290 mm tall
Scores · editorial, out of 10
- Handle & finish
- 8
- Weight increments / adjustability
- 10
- Footprint & floor safety
- 7
- Build (casting, seams)
- 9
- Value
- 7
Pick 1 · Kettlebells
Titan Fitness Adjustable Competition Kettlebell (12–32 kg)
Titan Fitness
A 12 kg competition-size shell with six cast iron plates (2, 2, 3, 3, 4, 6 kg) that sets almost every weight from 12 to 32 kg, 35 mm handle, flat base — the adjustable bell that swings like a real one.
Best for
Someone who wants one bell from 26 to 70 lb without a plastic shell
Why it is #1. 12–32 kg in eighteen settings, cast iron, competition dimensions, 35 mm handle, flat base. The only adjustable here that swings and racks like a fixed bell. The hex key is the price.
Pros
- Cast iron shell and plates — it drops, swings and racks like a competition bell
- 18 weight settings from 12 to 32 kg (26–70 lb) cover a beginner through heavy swings
- Flat base for floor work
Cons
- Changing weight means a hex key and a wrench — a minute, not a second
- Starts at 12 kg (26 lb); too heavy as a very first bell for some
Specs from Titan Fitness — 12–32 kg Adjustable Competition Kettlebell (plates, settings, dimensions).
Key specs
- Weights
- 8 / 12 / 20 / 25 / 35 / 40 lb
- Size
- 8.8 × 7 × 12.5 in.
- Adjust
- Dial
Scores · editorial, out of 10
- Handle & finish
- 6
- Weight increments / adjustability
- 9
- Footprint & floor safety
- 9
- Build (casting, seams)
- 6
- Value
- 7
Pick 2 · Kettlebells
BowFlex SelectTech 840 Adjustable Kettlebell
BowFlex
Six bells in one: 8, 12, 20, 25, 35 and 40 lb by turning a dial, in an 8.8 × 7 × 12.5 in. footprint — the adjustable bell for an apartment corner that can't hold a rack.
Best for
Replacing a beginner's first three bells with one object that fits under a desk
The dial. Six weights from 8 to 40 lb in a second. For a beginner or a circuit trainer in a studio, the convenience is real; for hard swings, snatches and dropping, it isn't the bell.
Pros
- Six weights in the footprint of one 40 lb bell — the space argument is decisive in a studio
- Dial change takes a second between sets
- Flat base; the 8–40 lb range is exactly the beginner-to-intermediate window
Cons
- Plastic shell and a flat, wide handle — it's not a bell you should drop or use for hard snatches
- Tops out at 40 lb; the jumps (20→25→35) aren't even
Specs from BowFlex — SelectTech 840 Adjustable Kettlebell (weights, dimensions).
Key specs
- Weights
- 10–40 lb, 6 settings
- Build
- Cast iron, powder coat, no welds
- Base
- Flat
Scores · editorial, out of 10
- Handle & finish
- 7
- Weight increments / adjustability
- 9
- Footprint & floor safety
- 8
- Build (casting, seams)
- 7
- Value
- 9
Pick 3 · Kettlebells
Yes4All Adjustable Kettlebell (10–40 lb)
Yes4All
A cast iron, powder-coated adjustable bell with six settings from 10 to 40 lb and a flat base — the cheapest way to own an adjustable kettlebell that's still metal.
Best for
A budget adjustable bell for a beginner who'll outgrow 10 lb but not 40 lb
The budget adjustable. Cast iron, powder coat, 10–40 lb across six settings. Slower to change than the other two; the cheapest way to own an adjustable that's still metal.
Pros
- Cast iron with no welds, unlike plastic-shell adjustables
- 10 lb starting weight suits an absolute beginner; 40 lb top is enough for most goblet squats and swings
- Cheapest adjustable here
Cons
- Plate changes are manual — slower than a dial
- Handle is wider than a competition bell; not ideal for snatches
Specs from Yes4All — 10–40 lb Adjustable Kettlebell listing (settings, construction).
Buying guide
Adjustable or two fixed bells?
Two fixed bells (say 16 and 24 kg) cost about what one adjustable does and never need adjusting. Buy the adjustable for the storage, not the savings.
Beginner ceiling
40 lb is enough for a first year of goblet squats and presses; it is not enough for swings for long. If swings are the goal, start on the Titan's range.
FAQ
Questions readers ask
Are adjustable kettlebells worth it?
For a small space that can't hold a rack, yes. For someone who will only ever use one weight, a fixed bell is cheaper and simpler.
Which adjustable kettlebell is best?
The Titan 12–32 kg if you want it to behave like a real bell; the BowFlex 840 if you want to change weight in a second and won't drop it.
Can you drop an adjustable kettlebell?
The cast iron ones on a mat, yes — then check the lock. The plastic-shell BowFlex, no.
Adjustable kettlebell or dumbbell?
Depends on what you train — the kettlebell vs dumbbell page covers it. For swings and carries, a bell.
Related
Keep reading
- Best kettlebells
Fixed bells, ranked.
- What size kettlebell should a beginner buy?
Which settings you'll actually use.
- Kettlebells in an apartment
One adjustable in one corner.
- Apartment gym setup
Where the bell lives.
Sources