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Adjustable Dumbbells

Buy Adjustable Dumbbells at LIONINSIDE®
Looking for adjustable dumbbells for home use or your home gym?
LIONINSIDE® offers premium dumbbell sets from 4 to 41.5 kg, available in multiple weight variants (23.5 kg, 32.5 kg, 41.5 kg).
With one adjustable dumbbell, you replace up to 52 individual dumbbells.
Perfect for strength training, saving space, and professional results.


One system. Maximum efficiency.

  • Always the right weight within reach

    Switch in seconds and train without interruption. From light sets to heavy lifts — all in one system.

  • No space. No time. No hassle.

    No living room full of loose weights or awkward racks. With one compact set, you can train professionally from home, without unnecessary clutter or wasting time.

  • Professional adjustable dumbbells 40 kg+ – premium dumbbell set for home and gym

     Maximum quality in a compact design

    Our exclusive adjustable dumbbells are equipped with the latest technology and feature ultra-thin, high-quality steel plates for a compact, stable, and premium training experience.

  • Securely locks with every lift

    Auto-locking mechanism — as soon as you lift, the selected plates lock simultaneously. Proven safe for compound lifts, drop sets, and free movement, even during heavy sets.

Beslishulp

Welke verstelbare dumbbell past bij jou?

Drie profielen, één snelle keuze om de juiste verstelbare halterset te vinden voor thuis trainen.

Eén Lioninside®-set vervangt tot 52 vaste dumbbells — geen rack meer, geen losse halterschijven, geschikt voor woon-, sport- of slaapkamer.

Vergelijk hieronder onze drie modellen verstelbare dumbbells: de 4–41,5 kg TitanSilver™ is bestseller; de meeste klanten kiezen direct voor de volledige range om jaren vooruit te kunnen zonder upgraden.

Compare our dumbbell racks

  •  LION® TitanRack™ PRO

    ✔ Extra robust construction
    ✔ Load capacity up to 300 kg
    ✔ Maximum stability during heavy lifts
    ✔ Premium steel finish
    ✔ Suitable for intensive training

  • Dumbbell rack for adjustable dumbbells – TitanRack Pro with integrated wheels

    TitanRack™ incl. wheels

    ✔ Same robust construction as TitanRack™
    ✔ 4 sturdy wheels up to 300 kg
    ✔ Easily move your setup
    ✔ Remains stable during use
    ✔ Perfect for flexible home gyms

  • LION® Adjustable Rack

    ✔ Adjustable height and position
    ✔ Train ergonomically at your level
    ✔ Compact and practical design
    ✔ Ideal for home use

Geverifieerde, authentieke klantbeoordelingen via Trusted Shops

FAQ – FREQUENTLY ASKED QUESTIONS

About the LION® Adjustable Dumbbells

How do the LION® adjustable dumbbells work and how quickly can you change weight?

In less than 3 seconds. Simply turn the handle to the desired weight, hear the confirming click — and you're ready for your next set.

No changing plates, no loose weights, no interruption to your flow. One smooth motion between 4 and 41.5 kg per dumbbell.

This lets you train faster, more intensely, and with complete focus on what matters: your progress.

Who are these dumbbells suitable for?

For anyone who is serious about their training — at any level.

The LION® Adjustable Dumbbells come in three variants: up to 23.5 kg, up to 32.5 kg and up to 41.5 kg per dumbbell.

Adjustment happens in fine 1.5 kg increments, so you can choose exactly the right weight for every set — crucial for progressive overload and controlled recovery. Whether you're starting with lighter exercises or have been lifting seriously for years: there is always an edition that grows with you.

One set, one investment, for every training goal and every phase of your journey.

What is the difference between TitanSilver™ and BlackValor™?

Both editions deliver exactly the same performance, quality, and lifespan — the difference lies in the training experience.

The BlackValor™ features a premium black coating and nylon damping between the plates.
Result: an almost silent, stylish set that fits perfectly in a modern home gym.

The TitanSilver™ has a steel-on-steel finish and a classic, industrial character. It delivers that unmistakable, powerful sound and feel of real ironwork with every rep. Which one you choose is purely a matter of taste — both are built to last for generations.

How much space do I save with these dumbbells?

One LION® set replaces up to 52 individual dumbbells.

That means: no more heavy dumbbell racks, no cluttered training corner, no wasted square meters in your home.
Everything you need fits in the space of one small table.

Many customers create a fully-fledged home gym for the first time with this, without sacrificing a separate room. Less equipment, more peace, full functionality — that's what a premium home setup should look like.

What exactly is included in the set?

You receive a fully ready-to-use set: two LION® Adjustable Dumbbells in the variant you choose, both sturdy base trays in which you place the dumbbells between sets, and a clear user manual.

You don't need to order anything else — unpack, place, and train.

Everything we include is developed for daily use and contributes to the premium look in your home gym.

Quality, safety & use

Are the dumbbells safe and suitable for intensive training?

Yes, completely.

The LION® Adjustable Dumbbells™ are designed for daily, heavy use — both at home and in professional settings.

The triple safety mechanism automatically locks each plate as soon as you pick up the handle, so nothing can ever come loose during your set. Stable in every rep, even during heavy compound lifts such as chest press, rows, and lunges.

Thousands of customers train with them daily without a single incident — safety is not a feature, it is the standard.

Do the dumbbells last a long time?

Yes, absolutely. The LION® Adjustable Dumbbells™ are built to last a lifetime. Premium materials, an industrial locking system, and strict quality control ensure that every set stands the test of generations.

Many customers have been training with them daily for more than 5 years — for them, the mechanism still works just as smoothly as it did on day one. One conscious investment for a lifetime of training.

Can I place them on my floor?

Yes. The base trays on which the dumbbells rest distribute the weight evenly, meaning they can be placed directly on most floors — such as laminate, vinyl, tile, or concrete.

For an extra protective layer and sound dampening, we recommend placing a training mat underneath, especially on hard floors or upper levels. Many customers choose a rubber fitness mat — a small investment that protects your floor perfectly.

Ordering, payment & returns

Can I pay in installments?

Yes, you can easily and at no extra cost. During checkout you can choose from:

  • Klarna — Pay Later: receive your set now, pay afterwards within 14 days.
  • iDeal in 3 installments: spread your purchase safely and interest-free over three monthly installments.

This means you don't have to wait for something you truly deserve. You train today, and spread the investment over a few months.

How do returns work?

You legally have a 14-day cooling-off period from the moment your order arrives. In practice, it is rare for a set to be returned — the quality is convincing almost immediately. If you still decide to return it, the return costs are at your own expense (the set is collected by pallet).

Still unsure? Feel free to visit our showroom in Sliedrecht. There you can hold, feel, and test the dumbbells yourself — so you buy with 100% confidence. Make an appointment by phone or email, we are happy to take the time for you.

Delivery, warranty and service

When will I receive my order?

If you order on a business day before 5:00 PM, your set will generally be delivered the next business day.

Because these are heavy premium products, we deliver them on a pallet — safe, protected, and done right in one go.

You will receive a message in advance with the time slot, so you know exactly when you can start your first workout.

What about delivery, warranty and service?

Your order is prepared with care, securely packaged, and delivered to your home on a pallet — safe and fully ready to use.

As a Dutch brand, we are close by: questions are answered quickly, personally, and in Dutch. In addition, you receive a standard 3-year manufacturer's warranty on every set.

If anything ever comes up — a part, a maintenance question, or just advice about your training — we are here for you. Think of it as the peace of mind that comes with a premium purchase: you train, we take care of the rest.

Are spare parts available?

Yes — and that is almost unique for adjustable dumbbells in the Netherlands. As one of the few suppliers, we keep all individual parts in stock: locking mechanisms, individual plates, handles, and base trays.

If anything ever needs to be replaced after years of intensive use — which rarely happens — you do not have to buy your entire set again.

One phone call or email to our customer service and the part will be shipped immediately. This is how your investment remains truly usable for a lifetime. That is the difference between a product that is sold and a product that is truly believed in.

Can I feel or test the dumbbells first?

Yes, and we highly recommend it.

You are welcome in our showroom in Sliedrecht, where you can hold, feel, and try out all variants (TitanSilver™ and BlackValor™) yourself. Here you will immediately notice the difference compared to cheaper alternatives — the weight, the finish, the clicking sound of the lock.

Our specialist takes plenty of time to advise you on which variant and which weight class best suits your goals.

Tenorweg 4, 3363 LN Sliedrecht
Mon to Fri 12:00 – 17:00 or by appointment
Make an appointment: 085 0606 291

Need help? We are here for you

Our Dutch specialists are personally here for you — no chatbot, no foreign call center, just people who know the products inside and out.

📧 klantenservice@lioninside.nl
📞 085 0606 291 (business days from 12:00 – 17:00)

Prefer to visit us?
You can. You are very welcome in our showroom at:
Tenorweg 4, 3363 LN Sliedrecht
(Monday to Friday from 12:00 – 17:00 or by appointment)

This way you know for sure: you are not just buying from a webshop, but from a real company with a real address, real people, and a real showroom where you can hold the dumbbells yourself.

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