40kg Adjustable Dumbbell Pair 2.5kg Increments
- Up to 40KGPer Dumbbell
- 16 Weight Settings2.5kg Increments
- Quick DialChange In Seconds
- Space SavingCompact Design
- 16 weight settings from 2.5kg to 40kg
- 2.5kg precision increments for smooth progression
- Space-saving nesting design for tidy storage
- Ergonomic handle for comfortable secure grip
- Suitable for all training levels and goals
- 12-month
warranty - 30-day
returns - UK-based
support - 50,000+
athletes
Overview
40kg Adjustable Dumbbells with 2.5kg Increments Precision Weight Training System
Experience unparalleled training precision with the MuscleIQ 40kg Adjustable Dumbbells featuring innovative 2.5kg increment adjustments - perfect for progressive overload, rehabilitation training, and fine-tuned strength development. With 16 different weight settings from 2.5kg to 40kg, these premium adjustable dumbbells provide the versatility needed for beginners through to advanced athletes.
The advanced nesting design and smooth dial adjustment system allow seamless weight transitions between exercises, maintaining workout intensity and flow. Engineered with ergonomic anti-slip handles and durable construction, these space-saving dumbbells deliver commercial gym performance in your home, ideal for strength training, muscle toning, HIIT workouts, and comprehensive fitness programs.
Replaces up to 16 pairs of dumbbells in one compact set.
2.5kg increments allow gradual, controlled strength gains.
Switch weights in seconds with the smooth dial system.
Perfect for supersets and circuit training.
Features that
Perform
01
Quick Transitions
Switch weights with a quick turn of the handle, with no plates to change or parts to rebuild. Ideal for drop sets, supersets and fast circuits, so you keep your pace and focus on performance.
02
16 in 1
With an adjustable range from 2.5kg to 40kg, this system replaces a full rack of dumbbells, saving space and money. Whether your goal is strength, endurance or muscle growth, it adjusts easily to suit any workout and level.
03
Lock-and-go safety mechanism
Once lifted from the base, the plates lock securely in place, with no loose parts during use and better safety for high intensity training.
Range
Replaces multiple weights
- 2.5kg
- 5kg
- 7.5kg
- 10kg
- 12.5kg
- 15kg
- 17.5kg
- 20kg
- 22.5kg
- 25kg
- 27.5kg
- 30kg
- 32.5kg
- 35kg
- 37.5kg
- 40kg
Training
How to use
Train Smarter with a Range of Exercises
- Strength Training: Use heavier settings for presses, rows, squats and lunges to build total-body strength.
- HIIT Workouts: Switch weights quickly for timed circuits like thrusters, swings and renegade rows.
- Endurance Training: Choose lighter loads for higher reps to improve muscular endurance and stamina.
- Weightlifting: Progressively increase the weight for controlled sets focused on strength and power.
- Muscle Toning: Use moderate weights for curls, raises and presses to shape and define muscle.
- Full-Body Conditioning: Combine compound and isolation moves to boost coordination and overall fitness.
Included
What's in the box
- 2×Adjustable Dumbbells
- 2×Nesting Bases
- 1×Instruction Manual
| Product Type | Adjustable Dumbbells Pair |
|---|---|
| Brand | Muscleiq |
| Maximum Weight | 40kg Per Dumbbell |
| Total Weight | 80kg Pair |
| Weight Range | 2.5kg to 40kg |
| Weight Settings | 16 Adjustable Settings |
| Increment | 2.5kg |
| Adjustment System | Twist-Dial Mechanism |
| Handle Type | Ergonomic Anti-Slip Grip |
| Storage | Nesting Base |
| Assembly Required | No |
| Warranty | 1 Year Warranty Included |
| Delivery | Free UK Delivery |
Key features
| Quick Adjust | Seamless adjustment by twist of handle |
| Knurled Grip Handle | Enhanced grip and control |
Sizes
Dimensions
| Length | 43.7cm |
|---|---|
| Width | 19.5cm |
| Height | 19.5cm |
| Weight Per Dumbbell | Up To 40kg |
| Total Pair Weight | 80kg |
| Plates Material | Cast Iron |
| Base Material | Stainless Steel + Nylon |
| Handle Material | Aluminium Alloy |
Build
Material and build quality
Built with durable materials for long-lasting performance under heavy use.
Comfortable grip reduces wrist strain and improves control through every lift.
Nesting mechanism keeps the selected weight plates firmly in place during use.
Compare
Why Choose MuscleIQ Adjustable Dumbbells?
| Feature | Muscle IQ | Standard Dumbbells |
|---|---|---|
| Adjustable Weight | Yes | No |
| 2.5kg Increments | Yes | No |
| Space Saving | Yes | No |
| Quick Adjustment | Yes | No |
| Value For Money | ★★★★★ | ★★★★★ |
Who it's for
Ideal for
- Strength Training
- HIIT Workouts
- Endurance Training
- Muscle Toning
- Full-Body Conditioning
- Progressive Overload
- Home Gyms
- Garage Gyms
- Muscle Building
- Fat Loss
Benefits
Why choose this product?
The 40kg Adjustable Dumbbell Pair with 2.5kg increments gives you 16 finely graded training loads in a single compact set. With 2.5kg steps, you can progress gradually and precisely - ideal for steady strength gains without jumping too far between weights. Perfect for any home gym.
2.5kg steps for gradual and controlled progression.
16 weight settings in one compact pair.
Change weights in seconds with the dial.
High-quality materials built to last.
Reviews
Reviews
5.0
Brilliant bit of kit! Best gym equipment I’ve ever bought! I sold my hexagon dumbbell set and stand to buy these. They take up less room with a lot more weight increases and money saved on buying new hexagon dumbbells when I need to progress to a higher weight. Would highly recommend to anyone thinking about buying a pair, the stand makes it easier saves bending down all the time to change weight. 10 out of 10 for me!!
The dumbbells arrived in brilliant packaging. Well taken care of. Went together easily and have been smooth and solid in operation. Very little movement or rattle in real world use.
Quality is great. Upgraded from 24kg dial type design. These feel much better as it shorter in lower weights and the sound of the iron is great
I love these dumbells. They are space saving, easy to assemble and easy to transition between different weights. Would recommend these 100%
Been using the 40kg adjustable dumbbells and bench for a couple of weeks now and I couldn't be happier. One of the best purchases I have made, they are top quality and the convenience of the quick weight change is excellent.
well made to last.
Plenty of weight for progressive overload too.
5 star products
Still going strong 9 months later, no particular issues though I am definitely much more careful than I would be with fixed dumbells. So much better than fiddly spinlock stuff, and the fact that the dumbell is only as wide as needed for the weight is perfect. Handles are a little thicker than most but i just consider that a bit of forearm training.
Great product, good quality and fast shipping. Very happy
Amazing bit of kit, i love these. So easy to use and adjust the weight
Speedy delivery, great weight range and easy to switch between weights.
Great so far, love the speed to change weight, more intense workouts. Hopefully they last well.
Ordered Thursday, arrived Friday, going to be a Great addition to my gym, fast change weights just like having your own rack, didn't purchase the stand as be fabricating my own.
All good
Great price and very quick despatch/delivery from MuscleIQ. Even had an extra 5% off at checkout which I couldn’t match anywhere else on the net. Dumbbells come well packaged and my initial impression was that they they looked solid and very durable. Having used them for several sessions, I’m extremely pleased with this product. Perfect for a home gym where space saving is essential. There is very minimal rattle/movement between the plates when in use, and not something you really notice at all. Changing weight is very quick and simple, just a rotation of the grip when in the dumbbell is back in the cradle and your chosen weight is displayed in a small window next to the grip. 2.5kg increments are great to ensure a progressive overload in workouts. The flat end design of each dumbbell sets these aside from other brands and is a must in my opinion as you can rest them on your knees or shoulders for kick ups or dumbbells lunges for example. They are also less bulky when selecting the lighter weight option. The only slight criticism I would have is that the grip is quite thick. Not a problem for push or lighter weight exercises but can be taxing on your grip for heavier deadlifts/shrugs etc. you may want to use chalk or use lifting straps. I suspect the grip needs to be thicker due to the design and adjustable mechanism.
If you can I would also recommend getting the stand. I didn’t and I’m starting to regret it. You have to be careful when placing the dumbbells back in the cradle so that they slot in correctly. This can be hard bending over with a heavier dumbbell. It’s possible to knock the unused plates over but they are secured into groves so it’s not something that will likely happen unless your careless.
Summary- great product and would definitely recommend. 2.5kg increments are an amazing training option and get it with the stand if possible. Grip is thick but not really a problem for majority of exercises. Will definitely buy from MusleIQ again soon, (maybe for the stand)
came the next day! will purchse the stand next and a bench
perfect weight good quality and a sturdy dumbbell so easy for me to switch between weights
best dumbbells on the market great for the price and great quality the arrived next day and was amazingly packaged.
Always wanted some great investment for home gym
This is a good product a great space saver easy to handle and use. Great Value for Money!
Amazing weights easy to adjust the weight would recommend to anyone
Great price, great product and fast delivery!
good price and nice product
this is just a great product, great price great quality and easy to use so worth the money!
Just had these delivered ordered only yesterday! Can't believe how well made. The mechanism to change the weights feel really sturdy and smooth. Really happy with my purchase will be back
Whether you're a beginner or a seasoned lifter, Muscleiq adjustable dumbbells are a must-have. The range of weights and the smooth adjustment mechanism make them incredibly versatile. Don't miss out on these! World recommend
Changing weights is so seamless and quick, I can maintain my workout intensity without any interruptions. Highly recommend to all fitness enthusiasts!
The items were exactly as described and pictured on the website and the dumbbells were delivered the next day!
Excellent product at an excellent price . Space saving which is crucial for me.
Perfect dumbbells to add to my home gym. Easy to adjust the weight and I was really impressed with the delivery time got them next day! 10/10 would recommend.
FAQs
Questions, answered
Can't see your question? Email support@muscleiq.co.uk or call +44 7365 727908.
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Good to know
Delivery and returns
Orders placed by 1pm on working days are dispatched the same day. Delivery is free to all UK addresses, including Northern Ireland, the Highlands and the islands. Most UK mainland orders arrive the next working day; some remote postcodes take longer.
Changed your mind? You can return items within 30 days of delivery. A 10% restocking fee applies. See our shipping policy and refund policy.
Free guides & tools
Plan it right
Will a rack fit my room?
Enter your ceiling and rack height.You gete.g. 27cm clearance, pull-ups OKRack calculator
How much flooring do I need?
Enter your room size.You gete.g. 14 tiles for a 4 × 3m roomFlooring calculator
What weight should I start with?
Pick your level, goal and exercise.You gete.g. 6–12kg per dumbbellWeight guide
Planning a full gym?
Pick a rack, attachments and a bench.You getYour full setup and priceGym builder