# Amonax Cast Iron Dumbbell Bars, 16-Inch Pair for 1-Inch Plates

Amonax cast iron dumbbell bars are a pair of adjustable handles for standard 1-inch weight plates. Their compact format and spinlock collars suit home strength training, but customer feedback is mixed on durability and heavy-load suitability. The listing says a bar connector can convert them to a barbell, but that connector is not specified as included.

- [Original product page](https://bargainpostbox.co.uk/product/amonax-cast-iron-dumbbell-bars-16-inch-pair)
- [View offer](https://bargainpostbox.co.uk/visit/amonax-cast-iron-dumbbell-bars-16-inch-pair)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Amonax
- Model: 163900071
- Category: Sports & Outdoors > Fitness & Exercise > Weights & Strength Equipment
- Price: 21.79 GBP
- Previous price: 26.99 GBP
- Discount: 19%
- Price checked: 2026-11-14T19:40:28.838Z
- Rating: 4.5 / 5
- Reviews: 276

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Pair of bars with spinlock collars, described for standard 1-inch weight plates.
- Adjustable loading supports changing plate weight between exercises.
- The listing describes barbell conversion when used with a bar connector.

## Pros

- Pair format lets you set up two independently loaded dumbbells.
- Standard 1-inch plate compatibility is clearly stated.
- The claimed cast-iron construction and spinlock collars provide a conventional adjustable-bar setup.

## Cons

- Customer feedback raises concerns about durability, including reports of breakage after around two weeks.
- Customers report that the bars are not suitable for heavy sets, and feedback on functionality is divided.

## Specifications

### Identity
- Brand: Amonax
- Model: 163900071
### Dimensions and installation
- Weight listed: 3 Kilograms
- Length and width listed: 41L x 11W centimetres
- Handle diameter: 1 inch
- Pieces: 2
### Materials and construction
- Material listed: Cast Iron
- Handle material: Cast Iron, Metal
- Colour: Black 3KG
### Use
- Listed style: Fixed
- Special feature: Convertible to Barbell
- Target body part: Legs

## Before you buy

- The listing calls the bars convertible to a barbell, but its detailed description says a bar connector is needed and does not establish that one is included. Customer feedback also conflicts on durability, ease of use, functionality and suitability for heavier weights, so treat those performance expectations as unsettled.

## A good fit for

- Home exercisers who already own standard 1-inch weight plates and want a pair of adjustable dumbbell handles.
- Buyers seeking a compact spinlock setup for strength exercises with changeable plate loads.

## Less suited to

- People who need a stated high-load capacity or dependable evidence for heavy-set use.
- Buyers who require a barbell connector in the package without confirming that it is supplied.

## Customer feedback

Customer feedback highlights a comfortable grip, sturdiness and collars that reportedly hold plates securely. Experiences are mixed on durability, ease of use and functionality, with some reports of breakage after around two weeks and concerns about heavy sets. The supplied rating distribution is mostly five-star, but that overall pattern does not resolve these specific load and durability concerns. Since the listing gives no load capacity, buyers planning heavier training should be cautious.
- Positive themes: Customers describe the bars as comfortable and sturdy, with a good grip.
- Positive themes: Customers report that the spinlock collars secure weight plates well.
- Negative themes: Some customers report breakage within about two weeks of use.
- Mixed feedback: Feedback differs on ease of use and functionality.
- Mixed feedback: Comments on weight suitability indicate the bars may be unsuitable for heavy sets.

## Frequently asked questions

### Which weight plates fit these bars?
The listing specifies standard 1-inch plates. Check that your plates' openings match before buying.
### Can the bars be joined as a barbell?
The listing describes barbell conversion with a bar connector. It does not establish that the connector is included.
### Are weight plates included?
The stated package contents are two bars and four locking collars. Weight plates are not listed among those contents.
### Are these suitable for heavy sets?
No load capacity is supplied, and customer feedback says they are not suitable for heavy sets. Consider that limitation if you plan to use substantial loads.

## Alternative options

- [Yes4All Threaded Dumbbell Handles, 14/16/18/24 Inch Dumbbell Bar Pair, Chrome/Rubber Grip, Fit 1” or 1.15" Plates, 4 Star-Lock Collars with Loose-Resistant Rubber Trims](https://bargainpostbox.co.uk/visit/amonax-cast-iron-dumbbell-bars-16-inch-pair)
- [Komodo Spinlock Dumbbell Bars - 1 Inch Standard 2 Bar Set \| Made from steel with a chrome finish, For 1in plates, Max bar rating 80kg](https://bargainpostbox.co.uk/visit/amonax-cast-iron-dumbbell-bars-16-inch-pair)
- [Yes4All LCR2 Dumbbell Bar, 2.5 cm x 35 cm, Black \(pair\)](https://bargainpostbox.co.uk/visit/amonax-cast-iron-dumbbell-bars-16-inch-pair)
- [Sunny Health & Fitness 36 cm Threaded Chrome Dumbbell Bar Set \| Fits 2.5 cm Plates, Chrome Finish, Adjustable, Weightlifting, Bodybuilding, 50 kg Capacity](https://bargainpostbox.co.uk/visit/amonax-cast-iron-dumbbell-bars-16-inch-pair)
- [Phoenix Fitness 35cm Dumbbell Bars - Pair of 1” Dumbbell Handles with 4x Spinlock Collars & Optional Barbell Connector for Weightlifting and Strength Training at Home & Gym - Solid Steel, 35cm](https://bargainpostbox.co.uk/visit/amonax-cast-iron-dumbbell-bars-16-inch-pair)
- [GYM MASTER Pair of Dumbbell Bars with Spinlock Collars](https://bargainpostbox.co.uk/visit/amonax-cast-iron-dumbbell-bars-16-inch-pair)
- [Kikzi Dumbbell Bar Pair with Spinlock Collars, 35cm \(14 in\) Steel Bars for 1 inch \(25mm\) Standard Plates](https://bargainpostbox.co.uk/visit/amonax-cast-iron-dumbbell-bars-16-inch-pair)
- [York 16 Inch Spinlock Dumbbell Bar - 1 Inch](https://bargainpostbox.co.uk/visit/amonax-cast-iron-dumbbell-bars-16-inch-pair)
- [Amonax 20kg 30kg Cast Iron Adjustable Dumbbells Weight Set, Barbell Set Men Women, Strength Training Equipment Home Gym Fitness, Dumbell Pair Hand Weight, Bar Bells Free Weights for Weight Lifting](https://bargainpostbox.co.uk/visit/amonax-am-163900040-20kg-adjustable-dumbbell-set)
- [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](https://bargainpostbox.co.uk/visit/amonax-cast-iron-dumbbell-bars-16-inch-pair)
- [Amonax Cast Iron Weight Plates Set, 2.5kg-10kg Dumbbell and Barbell Plates \| For Weight Lifting and Hip Thrust Training, With Durable Cast Iron Construction for Strength Workouts and Home Gym Exercise](https://bargainpostbox.co.uk/visit/amonax-am163900056-cast-iron-weight-plates)
- [Holdfiturn 2 X Dumbbell Bar 15.7 Inches Universal Dumbbells Strength Training Dumbbell Bars Workout Dumbbell Accessories Fitness Equipment with Collars for Sports Gym Dumbbell Bar Various Warm-Up](https://bargainpostbox.co.uk/visit/amonax-cast-iron-dumbbell-bars-16-inch-pair)

## Add-ons

- [Phoenix Fitness Cast Iron Weight Plates - 1-Inch Free Weight Plate for Barbell Dumbbell Bars, Weightlifting & Strength Training at Home Gym - Singles, Pairs or Set of 4: 1.25kg, 2.5kg, 5kg, 10kg, 20kg](https://bargainpostbox.co.uk/visit/amonax-cast-iron-dumbbell-bars-16-inch-pair)

## Images

![Amonax Cast Iron Dumbbell Bars, 16-Inch Pair for 1-Inch Plates — 1](https://bargainpostbox.co.uk/i/E-vMCUvX99AlEnxT0Xff8sue27q4PIe4q7WhEKzO_jIk3rRIfS4alrQWb8Q8QlBWnDeE8rV2KknEMAS_ctLtYTKnFCnl-RA7iiz1714jGk5CqeMRDlu2UyMD.jpg)

![Amonax Cast Iron Dumbbell Bars, 16-Inch Pair for 1-Inch Plates — 2](https://bargainpostbox.co.uk/i/RyG5KGTOAuX8OR0B4Xh7v_fAt3gHLxzfGcQJBwGLTc2MF-eeOS7pwixdEXXI6HETPGK0E5XVj9mDqARqffvZazxkRG0O36nhj-RYuxu4AF24Wd-ddPbJo8L0.jpg)

![Amonax Cast Iron Dumbbell Bars, 16-Inch Pair for 1-Inch Plates — 3](https://bargainpostbox.co.uk/i/0BJIDPDU7adSco4Z9Kgg-k7tzposRuH9OoTqG2NZD89uymWwcK7GOqvNS1Yfa1EOhLvo_p_aaBL3hEAAW139ggvK5ilE2fpsuVuwmjoW0-e740lM542IFeNN.jpg)

![Amonax Cast Iron Dumbbell Bars, 16-Inch Pair for 1-Inch Plates — 4](https://bargainpostbox.co.uk/i/QGkbGTRpGS77Zad6lAvvoI04hmpaBLvGHSt2l9xrCXW69uL06cXgfsx04Wq_JaOZUIx3zZjH16wRraQOHys6sPYRuZ4j0D2MqrxS1HW9jIi5yzI0b5yt_feN.jpg)

![Amonax Cast Iron Dumbbell Bars, 16-Inch Pair for 1-Inch Plates — 5](https://bargainpostbox.co.uk/i/jaiWB5vqkFWrlXfXU5ZEhMf_5OkuyFxz_KSDE5zDWS_ROk08YftPh9OnE69gbJ73NAuoCREQB0nR5tWoByix9dLaR8mr7ZjAjvb8ZQ65yFa9IZzKimgCCuu8.jpg)

![Amonax Cast Iron Dumbbell Bars, 16-Inch Pair for 1-Inch Plates — 6](https://bargainpostbox.co.uk/i/EsL69Oc5LyB2cfI6KvGkZL-r0EgZsUhQ311v-Ax3a0JF0EIw_aqjPCcfsdLPZJIuj5N4D-pnhHVpADHr97gkCa68pAMN_cq750d-DdwV496OP-t96BXjUGHe.jpg)