1 / 6Amonax 40 kg Cast Iron Adjustable Dumbbell and Barbell Set
Amonax adjustable dumbbell and barbell set combines changeable cast-iron weights with a connector for home strength training. Its 40 kg listing weight and included conversion parts make it a flexible alternative to owning separate fixed-weight dumbbells, though the product page also uses 20 kg and 30 kg labels that do not clearly identify this configuration.
At a glance
- The listing describes a pair of adjustable dumbbells that can be joined into a barbell using the connector.
- The stated plate selection is 12 x 2.5kg, 4 x 1.25kg and 4 x 0.5kg, with four spinlock collars.
- Knurled bars are intended to provide a textured grip during training and when changing plates.
- The listing presents the set for exercises including presses, curls, rows, squats and lunges.
Often bought together
Pros and cons
Pros
- Dumbbell-to-barbell conversion provides two training setups from one kit.
- Cast-iron plates and steel spinlock collars are specified for the weight assembly.
- The adjustable format can reduce the need to store multiple fixed-weight dumbbells.
Technical specifications
9 specifications| Brand | Amonax |
|---|---|
| Model | 163900088 |
| Weight listed | 40 Kilograms |
|---|---|
| Item dimensions | 20L x 9W centimetres |
| Handle diameter | 3.5cm |
| Material listed | Cast Iron |
|---|---|
| Handle material | Metal,Steel |
| Adjustable weight | Adjustable Weight |
|---|---|
| Style | Adjustable |
What to know before buying
Listing details to confirm
The listing is inconsistent about the set's size: its title includes 20 kg and 30 kg, while the colour, set name and listed item weight indicate 40 kg, and other description text refers to 20 kg and 30 kg configurations. Confirm the selected set's total weight and plate allocation before buying. The page also says it arrives in 2 parcels, so delivery may be split.
Who is it for?
A good fit for
- Home strength training where adjustable dumbbells and a barbell option are useful.
- Buyers who want cast-iron plates and spinlock collars in a compact free-weight setup.
- People planning varied upper- and lower-body exercises and willing to change plates between sets.
Less suited to
- Those who want quick-select weights without manually fitting plates and collars.
- Buyers who need a clearly confirmed maximum weight for a particular listing variation without checking the selected configuration.
Customer reviews on Amazon
- 5 stars
76% 76% - 4 stars
16% 16% - 3 stars
4% 4% - 2 stars
1% 1% - 1 star
3% 3%
Customer feedback highlights perceived quality, sturdiness, comfortable grip and straightforward assembly. Some customers say the collars hold well, while others report that plates can loosen. Durability feedback is mixed, including reports of coating peeling as well as sets showing no wear. That matters for this plate-loaded design because collars need checking, and it is sensible to inspect the coating over time. The ratings are broadly favourable, but they do not settle the reports of loosening or coating wear.
Positive themes
- Customers describe the set as sturdy and easy to assemble.
- Feedback mentions a comfortable grip and usefulness for home workouts.
Negative themes
- Some customers report that weights can sometimes become loose.
- Some customers report peeling coating.
Mixed feedback
- Durability feedback ranges from no reported wear to coating peeling.
Frequently asked questions
Can this set be used as both dumbbells and a barbell?
The listing says the connector joins the dumbbell bars to form a barbell. It also lists one chrome connector among the contents.
What is the total weight of this version?
The listing is contradictory. It variously names 20 kg and 30 kg in the title, identifies a 40 kg set elsewhere, and includes 20 kg and 30 kg descriptions. Confirm the selected variation and plate allocation with the seller.
What weight plates are listed as included?
The package description lists 12 x 2.5kg plates, 4 x 1.25kg plates and 4 x 0.5kg plates, alongside bars, collars, a connector and a workout guide.
Are the weights held in place by collars?
The listing specifies four steel spinlock collars. Customer feedback includes reports that weights can sometimes loosen, so check that collars are secure during use.
Alternative options
Adjustable Cast Iron Dumbbell and Barbell Weight Set, Spinlock Bars & Plates for Home Gym Strength Training, 15kg 20kg 30kg 50kg Weights for Fitness, Muscle Building, Exercise & Full Body Workouts Set
£51.49
Hop-Sport 80kg Adjustable Barbell & Dumbbell Set | 120cm Straight & EZ Curl Steel Bars, 54cm Dumbbell Handles, Spinlock Collars & 80kg Floor-Friendly Composite Plates
£139.99
Phoenix Fitness Dumbbells Weight Set - Adjustable 2-in-1 Barbell Set for Exercise, Muscle and Strength Training - Weight: up to 15kg
£24.99
BRAINGAIN 24kg/40kg Adjustable Dumbbells Set, 15/17 Weights in One, Pair | 2 Year UK Warranty, 1-Second Changes, Secure Locking, Knurled Cast Iron Grip, Storage Dock Included, 100,000+ Customers
£369.00
SONGMICS Dumbbell Set Adjustable Dumbbells
£42.99
Amonax Cast Iron Dumbbell Bar, 16 Inches Weight Dumbbell Handle with 4 Metal Spinlock Collars, Dumbell Bars Pair for Standard 1'' Weight Plates, Gym Equipment for Home Use
£21.79
Strongway® Olympic Bumper Weight Plates (5KG 10KG 20KG) Discs for Barbell - 2 Inch (2") / 50mm Hole - Weight Lifting Workout for Home Gym Fitness Men Women
£191.95
Adjustable Chrome Steel Dumbbells Set, Compact Weights with Anti-Slip Foam Handles for Home & Gym Strength Training
£48.47
FEIERDUN 5-in-1 Adjustable Dumbbell Weight Set 10kg-40kg | Home Gym Weight Set Barbell,Kettlebell & Push Up Stands for Full Body Workout,Space-Saving Strength Training for Men & Women
£69.99
SONGMICS Set of 2 Adjustable Dumbbells, 12.5KG/18KG/24KG Pair, Quick Dial, Space-Saving, Non-Slip Handle, Storage Tray, Home Gym Strength Training
£138.99
Lions 6 in one Adjustable Weight Dumbbells Set - 20KG Multi Use Dumbellsweights Sets, Kettlebell Handle Barbell Bar Joiner for Fitness Gym Workout Exercise Training Men Women with Training Guide
£27.95
