• Free & Fast UK Delivery

    on all mainland UK orders

  • Interest Free Payments

    Spread the cost on Klarna or Clearpay

  • We're Rated Excellent

    On Trustpilot, over 1,000 Reviews!

  • 24 Months Warranty

    included on everything

40kg Adjustable Dumbbell (Pair)

4.785,00 kr

£499.99

£399.99

£349.99


With/without stand

Key Features:

  • Easily shift from 5kg to 40kg
  • Pair of 17-in-1 Adjustable Dumbbells
  • Simply turn the dial to change the weight
  • 24 Months Warranty

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

Easily shift from 5kg to 40kg with the innovative BRAINGAIN 40kg 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 17 fixed dumbbells saving you space, cost and time!

The BRAINGAIN 40kg 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 40kg 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 40kg Adjustable Dumbbells is the equivalent to 17 individual fixed weight dumbbells. Increments: 5kg, 7kg, 9kg, 11kg, 13kg, 15kg, 18kg, 20kg, 22kg, 25kg, 27kg, 29kg, 32kg, 34kg, 36kg, 38kg, 40kg.

Dimensions: 45cm x 25cm x 25cm

Please note: dumbbells are sold as a pair, representing 2x 40kg so 80kg 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.

  • Turn of a dial

    Easily shift from 5kg to 40kg with the innovative BRAINGAIN 40kg Adjustable Dumbbells. No more need for 17 seperate weights.

  • Base or Stand

    The 40kg 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.

  • 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.

DIMENSIONS

Length: 46cm

Height: 21.5cm

Width: 23.5cm

"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 40kg Adjustable Dumbbell (Pair) by clicking on the pulsing highlights.

Customer Reviews

Based on 168 reviews
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(164)
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S
Splinter
Great space saving dumbells

Ideal to save space and not need you to buy multiple sets of dumbbells. Easy to adjust the weight and they feel sturdy. Have used them for various dumbbell exercises with no issues. The only downside of adjustable dumbbells is that they are bulky compared to set dumbbells as they need to have room on the bar for different weight plates, but I find this a price worth paying for avoiding the need to have many different sets of fixed weight dumbbells

r
reece
Brilliant dumbells

These dumbells are amazing for the price. The design is very similar to the 'bowflex' ones and are very well built. They feel very premium and the weights are easy to change with the dials at both ends. I bought the 40kg with 17 increments and bought them on sale with an additional 10% promo down to £315 which is an absolute bargain, considering a racked pair of dumbells with the same increments would probably cost close to £1000. Easy assembly, great grip and the size isn't too bulky and can be tucked away fairly easily. Recommended purchase.

M
Mike Jessop
One of the best gym purchases I have ever made (or your money back)! :)

I have a well equipped home gym. Over the years I have seen the adjustable dumbbells, and always thought that they were stupidly expensive. Then I saw these. Still not cheap, but they looked like quality dumbbells and were nowhere near as prices as a lot of the others. In addition, unlike some other adjustables, these have a great range of weights options with relative small increments between each. Perfect for me to work though the higher weights, and for my wife to use lower ones. I'd been faffing for years with regular dumbbells, switching weights for different exercises etc.

So, one day, I saw these on offer and thought I'd give them a go. It's Amazon right? Worst case I'll send them back if I hate them or the quality was naff.

They arrived, I tried using them, didn't realise that you had to adjust the dials on both sides of the weights to the same thing, almost threw the dumbbells through the ceiling, then almost dropped then because they were lopsided. A few seconds later, with dials all adjust to the same thing, they were working great and I love them. I can do much higher weight than my old manual change ones. I think that's because I can try one weight, quickly add a few more kgs, try it again and keep upping it until I've pushed myself to my current limit. And if I'm having an off day or want to do a different exercise that requires different weights, slap them in the holder, spin the dials and away you go. Simple. My biceps have never grown so fast! Sorry, I probably sound like one for those corney online shopper ads now. Lol!

In summary, I love these and can't recommend them enough, although my wife was a bit upset that the ones I received didn't have the red trim shown in the picture :)

M
Mike Jessop

One of the best gym purchases I have ever made (or your money back)! :)

A
Amazon Customer
All in one product

Great product small to space save, good range of weight.

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