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1 8
Customers rate us 5.0/5 based on 2789 reviews.

24kg Adjustable Dumbbell (Pair)

£179.99 £299.99
  • Easily shift from 2.5kg to 24kg
  • Pair of 15-in-1 Adjustable Dumbbells
  • 1 second adjustment, simply twist the handle to change the weight
  • 24 Months Warranty
🚚 FREE avg next day delivery
🛡️ 2-YEAR warranty on all dumbbells
😊 Over 75,000+ happy customers
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Free & Fast UK Delivery

We offer FREE Standard Delivery to England, Scotland & Wales on ALL orders.

Express Delivery is available for a small surcharge. All other orders will be subject to additional delivery charges.

Standard Delivery will take 2-4 business days, however we aim to dispatch all orders as soon as possible.

See our Delivery Information page here.

Why choose BRAINGAIN
  • Rated Excellent on Trustpilot, over 1000 5* reviews!
  • Over 50,000 Adjustable Dumbbells sold.
  • UK’s leading Fitness & Home Gym Brand.
  • Spread the cost with Klarna or Clearpay.
  • 2 Years Warranty on everything.

Overview

The BRAINGAIN 24kg Adjustable Dumbbells cover 15 weights in one dumbbell, letting you change from 2.5kg to 24kg with a simple twist of the dial making it a space, time and money saver. The innovative 24kg Adjustable Dumbbells are the perfect dumbbell for your home gym set up, whether you’re looking to train in your garage or your living room, removing the need for a full rack of dumbbells and can be used to build, strengthen and tone your entire body.

Easily shift from 2.5kg to 24kg with the innovative BRAINGAIN 24kg Adjustable Dumbbells which are perfect for home workouts whether you’re training in your garage, the back garden or your living room. One pair of these adjustable dumbbells replaces a complete set of 15 fixed dumbbells saving you space, cost and time!

The BRAINGAIN 24kg Adjustable Dumbbells are perfectly designed and quality tested to ensure the highest level of safety for all users whether you are a beginner training for the first time or a professional with years of experience. Simply twist the dial on each side of the adjustable dumbbell to set the weight, pick up your weights and you can start training straight away and are a real evolution from the old style, spinlock style adjustable dumbbells.

Adjustable Dumbbells can be used for all your home workout needs and exercises including presses, swings, deadlifts, squats, curls, sit-ups, snatch, renegade row, twists, clean & press, thrust and more.

The 24kg Adjustable Dumbbells come with their own tray to facilitate simple weight changes and tidy storage. Separate stands can be purchased to bring the adjustable dumbbells up to waist height.

The Adjustable Dumbbells are designed to stay with you on your journey. Whether you’re starting on the lightest weight, or something heavier, the adjustable weights will be by your side as you gain strength and go through the weight range.

Features

The BRAINGAIN 24kg Adjustable Dumbbells are the equivalent to 15 individual fixed weight dumbbells. Increments: 2.5kg, 3.5kg, 4.5kg, 5.5kg, 6.5kg, 8kg, 9kg, 10kg, 11.5kg, 13.5kg, 16kg, 18kg, 20.5kg, 22.5kg and 24kg.

Dimensions: 39cm x 20cm x 23cm

Please note: dumbbells are sold as a pair, representing 2x 24kg so 48kg total.

Warranty

All of our products come with a 24 month warranty as standard. We offer extended warranty options on selected products which if available will be shown above the 'Add to Cart' button above.

“For the most experienced iron-pumpers, while perfectly catering to beginners too.”

“The build quality is excellent. The knurled metal handle is the icing on the cake.”

“An industrial-strength set of weights with a smart design.”

“Robust... and comfy for most classic moves.”

“Ultra smooth and easy to twist... one of the sturdiest designs we tried.”

  • Turn of a dial

    Easily shift from 2.5kg to 24kg with the innovative BRAINGAIN 24kg Adjustable Dumbbells. No more need for 15 seperate weights.

  • Storage Base

    Keep your workout space organized and transitions seamless — the dumbbells rest securely in their base for quick weight changes and effortless portability.

  • Total Body Workouts

    Adjustable Dumbbells can be used for all your home workout needs and exercises including presses, swings, deadlifts, squats, curls, sit-ups, snatch, renegade row, twists, clean & press, thrust and more.

Your Body Is Already Losing Muscle

From age 30, your body naturally loses muscle mass. Without resistance training, it only gets worse.

3-5%

muscle mass lost per decade from age 30. After 50, this accelerates to 1-2% per year.1

10-17%

lower risk of all-cause mortality, cardiovascular disease and diabetes from strength training.2

30-60 min

per week is the optimal dose - just 3x 20-minute sessions for maximum longevity benefit.3

1 Source 2 Source 3 Source

Built Different. Here's the Proof.

We surveyed 659 BrainGain customers across 5 key markets.

90%

said the value justified the price or price wasn't even a concern.*

72%

train 3 or more times per week with their BrainGain dumbbells.*

81%

want to buy more BrainGain products (accessories, supplements, training).*

* Source: BrainGain Customer Survey, February 2026, n=659 across 5 markets.


Rated Excellent on Trustpilot

Don't just take our word for it. Over 1,800 verified reviews from real customers.

★★★★★

Great. Works Smoothly!

St Albans Guy

After 3wks of daily using the 24kg dumbbells I'm very happy with them. The weight selection mechanism is easy to use and it works smoothly.

★★★★★

Customer Care Comes First

Kazimierz Miziolek

My son was given a 24kg Adjustable dumbbell set for his birthday in March. He has been using it daily and said it is the best weight set he has ever had - compact storage, well made and great to use.

★★★★★

Fantastic Weights

Susan Nisbet

I bought 24kg adjustable dumbbells and they are brilliant! I wish I had invested in them before now. Initially I was worried they would be too bulky but they’re absolutely fine - even for females.

TrustPilot Read all reviews →

DIMENSIONS

Length: 43cm

Height: 20cm

Width: 23cm

"Game-Changer for Home Workouts!"

These adjustable dumbbells are a fantastic addition to my home gym. The Smart Click technology makes switching weights super easy, and the stand keeps everything neat and accessible. Highly recommend!

Liam Stafford - Manchester

Product Highlights

Explore the key features of our 24kg Adjustable Dumbbell (Pair) by clicking on the pulsing highlights.

Us vs. Them

Not overhyped or overpriced.
Just premium adjustable dumbbells built to last.

BrainGain
Generic Adjustable
Gym / Fixed Weights
Max weight
Up to 24kg
20-24kg
Depends on gym
Weight settings
15 per dumbbell
5-8
Fixed
Change weight in 1 sec
No rattle during lifts
Replaces entire rack
2 year warranty
Premium support