Today I’m bringing you something that truly breaks the mold of what we’re used to seeing in home gym equipment. When I first opened the box, I wasn’t quite sure how to define what was in front of me: they are dumbbells, yes, but they literally look like machine gun drums loaded with bullets. The first thing you think when you see them is how aesthetically incredible they are. It seems they were inspired by Billy the Kid himself, hence the name: the Lullax BILLY Adjustable Dumbbell.
Remember, if you’re going to pick these up or any other gear from the Lullax website (they have everything from air bikes to rowing machines), you can use the discount code BILBOTEAM10 to get a direct 10% discount on your purchase.
I thought that by now there were no possible shapes or original mechanisms left for designing a variable-weight dumbbell, but the folks at Lullax have surprised us with a totally different concept. It has nothing to do with the typical quick-select adjustable dumbbell we’re used to on the market. Here you find massive metal pieces, chrome finishes, and a visual precision that looks like it came out of a high-precision machine shop. But the big question is: are they functional for training hard or are they just a pretty decoration? Let’s break them down point by point.
The Lullax BILLY Adjustable Dumbbell immediately stands out by radically moving away from plastic and conventional integrated selectors. It’s designed for those looking for equipment with character, personality, and a clean industrial aesthetic where the selector weight feels 100% solid and metallic.
These days, when someone enters my personal gym, the first thing they ask about when passing the rack is these dumbbells. They stare at the chrome drum, point at the pins, and tell me: “But Bilbo, what the hell is that?”. And for good reason. It’s beautiful gear with an impressive feel that makes you want to start training from the very first minute.
Unlike the usual lines focused solely on change speed, the Billy series enters a category that’s almost a collector’s item. You turn the cylinder, feel how the mechanisms click into place, and the tactile sensation is a total joy. However, before deciding if it’s the ideal dumbbell for your Home Gym, you need to understand exactly how its curious loading system works.
The weight change concept in the Lullax Billy dumbbell is based on removing and inserting individual metal pins (which we colloquially call “bullets”) arranged radially around the central axis.
The operation is very intuitive once you get the hang of it:
One of the great advantages of this mechanical pin system is the load micro-progression. Each individual bullet has an exact weight of 0.5 kg. This allows you to make hyper-precise adjustments in your strength training:
In each position or click of the Lullax Billy drum, you can access a block of between 4 and 6 bullets (including central pins). This means that in a single quick turn, you can vary the dumbbell load in a range of 2 kg to 3 kg without having to turn the piece all the way around.
It’s crucial to be totally honest on this point. In Lullax’s conventional ranges—like the Lullax Neo or Lullax Platinum models—the weight change is totally instantaneous: turn the handle on the base and go from 2 kg to 32 kg or 41 kg in a second.
With the Lullax BILLY Adjustable Dumbbell, the process requires changing the loads by removing and putting in the bullets one by one. If you’re at 26 kg and want to drop 3 kg for a drop set, you’ll have to release exactly 6 metal bullets. It is a significantly slower process.
| Feature | Lullax BILLY Adjustable | Lullax Neo / Platinum |
| Mechanism | Manual drum with selector bullets | Rotary selector on base |
| Change Speed | Moderate (manual piece by piece) | Ultra-fast (1 second) |
| Minimum adjustment | 0.5 kg (extreme micro-loading) | 1 kg – 2 kg depending on model |
| Tactile feel / Aesthetics | Premium industrial / Collector style | Functional / Modern gym |
| Impact resistance | High (internal mechanism with no protrusions) | Medium (requires care with drops) |
When I started testing them thoroughly in my usual training space, the first doubt that arose was the structural behavior of the block. When you’re moving respectable poundages in heavy exercises, the last thing you want is to feel looseness or the sound of loose parts over your head.
The reality is that the dumbbells feel extremely compact and integrated. No strange movement is felt in the bullets once the safety clip is activated. The only sound they ever emit is a slight metallic clink if you turn them sharply in the air, but during exercise execution, they behave exactly like a traditional fixed cast-iron dumbbell.
And remember that the best way to train is with the Bilbo Method app
The metal grip passes with flying colors. It has a knurling with just the right grain: it grips the palm of the hand very well without being aggressive or abrasive. It’s not like those hyper-aggressive power bars that seem designed to rip your skin off with every heavy rep.
Regarding durability, the Lullax Billy is among the toughest and most resistant adjustable dumbbells on the market. Since it doesn’t have external plastic dials, fragile gears, or parts protruding from the main chassis, the risk of breakage from a hard set-down or accidental impact is minimal. The rotation mechanism is entirely internal to the drum. Obviously, no adjustable dumbbell is designed to be thrown roughly from two meters high to the floor, but these handle real home gym use without breaking a sweat.
To get your Home Gym equipment purchase right, you must classify your personal training priorities:
It’s like the analogy of collector cars. If you need to get to work fast every day, you use a practical and quick commuter car. But if you’re passionate about motoring, you like to take a classic sports car or a convertible out on the road on weekends: it might not be the fastest or the most comfortable for loading groceries, but the experience and enjoyment of driving it are on another level. The Lullax Billy dumbbell represents exactly that same philosophy in the fitness world.
Is the Lullax BILLY Adjustable Dumbbell the brand’s best dumbbell? If we analyze exclusively the weight change speed, the answer is no: the one-second change adjustable dumbbell ranges are more efficient for beat-the-clock sessions. However, if we value construction quality, precision in 0.5 kg jumps, the durability of its metallic components, and visual impact, it is probably the most special piece in the Lullax catalog.
It’s a product with its own personality that more than delivers on grip, firmness, and ergonomics during heavy exercise. If you’re looking for something different for your Home Gym that motivates you every time you walk in to train, the Billy is an outstanding choice.
Remember, if you’re going to pick these up or any other gear from the Lullax website (they have everything from air bikes to rowing machines), you can use the discount code BILBOTEAM10 to get a direct 10% discount on your purchase.
The empty dumbbell, without any of its metal bullets installed in the drum, has a base weight of 8 kg.
Thanks to the 0.5 kg individual pin system, you can make weight adjustments from as little as 0.5 kg (removing one bullet) or 1 kg if you remove one bullet per side to maintain balance.
No. The chassis has a safety tab with a click locking system. As long as the safety is down, the drum holes are misaligned, making it completely impossible for the weight pins to come out.
Although it is one of the most resistant adjustable dumbbells on the market due to its metallic construction and internal rotation mechanism, no adjustable weight selector should be thrown violently to the floor to ensure the maximum longevity of the mechanism.
Expert in strength training and physical tests for civil service candidates. With over 30 years of experience and multiple national and European records, he shares his methods to improve strength, endurance, and performance safely.
