A dumbbell set that doubles as a barbell without taking up extra space.

This set functions as two individual adjustable dumbbells and, with the included 40cm connecting bar, a full barbell. Each dumbbell bar measures 47cm in length and 33mm in diameter, and the plates slot onto a 28mm standard hole, so the system works with any conventional weight training accessory. The result is three training configurations from a single purchase.

Each dumbbell adjusts from 2.5kg up to 15kg per side by adding or removing bitumen plates. The set includes four plate sizes: 1.25kg, 1.5kg, 2kg, and 2.5kg, with four plates of each size included across the full 30kg package. Four securing nuts lock the plates in place on whichever configuration you choose, and the plates seat flush against one another for a stable, balanced load during every movement.

Two pieces of equipment, one compact footprint.

The Bitumen Dumbbell Set 2 x 15kg fits within a product footprint of 47 x 21.5 x 21.5 cm when fully assembled as a dumbbell pair. That compact profile means the set can be stored under a bench, in a corner, or in a small dedicated training space without requiring a rack or dedicated storage unit.

The connecting bar adds barbell capability without adding a separate piece of equipment to manage. Compound movements such as the bench press, barbell row, overhead press, squat, and deadlift can all be performed with the assembled barbell configuration, while the individual dumbbell bars remain available for isolation work like curls, lateral raises, and chest flies.

Here is why the Bitumen Dumbbell Set 2 x 15kg is the best choice for our customers.

This set was built for people who want a structured home training setup without dedicating significant floor space or budget to multiple pieces of equipment. It covers the full range of foundational strength movements, from beginner-level dumbbell work at 2.5kg per side through to barbell-based compound lifts at a combined 30kg.

The plate-loading format gives users direct control over their training load at any session, with no mechanical selectors or proprietary systems to maintain.

Here are 6 reasons we believe the Bitumen Dumbbell Set 2 x 15kg is the right fit for your household.

Adjustable from 2.5kg to 15kg Per Dumbbell

The four plate sizes allow you to build each dumbbell anywhere between 2.5kg and 15kg, giving a practical loading range for both light accessory work and heavier compound exercises.

Converts to a Full Barbell

The included 40cm connecting bar transforms the two dumbbell bars into a barbell, adding pressing, squatting, and hinging exercises to the set's capability without a separate bar purchase.

Standard 28mm Hole Diameter

All plates are drilled to the 28mm standard, so they can be used with other conventional bars and accessories you may already own or add later.

Bitumen Construction for Durability

The bitumen casting method produces plates that hold their shape and resist surface damage through regular training. The material does not crack or crumble under the stress of normal loading and unloading.

Full Set in One Package

Plates, bars, connecting bar, and securing nuts are all included. There is nothing additional to source before your first session.

2-Year Warranty Included

The set is covered by a 2-year warranty, providing assurance on the materials and build quality over an extended period of regular use.

Frequently Asked Questions

How do I convert the dumbbells into a barbell?

Thread the plates from both dumbbell bars onto the connecting bar in your preferred combination. Secure each side with the included nuts. The 40cm connecting bar has the same 28mm hole diameter as the dumbbell bars, so all 16 plates are interchangeable across the three bars.

What is the minimum and maximum weight I can load on each dumbbell?

The lightest usable configuration is a single 1.25kg plate per side for a 2.5kg dumbbell. The maximum is 15kg per dumbbell when all plates for that bar are loaded. The four plate sizes (1.25kg, 1.5kg, 2kg, and 2.5kg) allow multiple combinations between those two points.

Are these plates compatible with other standard bars?

Yes. The 28mm centre hole is the conventional standard for dumbbell and barbell plates, so the bitumen plates from this set will fit most standard-diameter bars.

How long does it take to change the weight between sets?

Removing or adding a plate takes a few seconds once the securing nut is loosened. Changing between a light and heavy configuration typically takes under a minute. Securing nuts are tightened by hand and do not require tools.

What is the overall weight of the complete set?

The total weight of all components combined is 30kg. This includes 16 plates, two dumbbell bars, one connecting bar, and four securing nuts.

Do the plates or bars require any maintenance?

No specialist maintenance is required. Check that the securing nuts are firmly tightened before each session. Store the set in a dry location when not in use, as prolonged exposure to moisture can affect the surface condition of bitumen plates over time.

Weight	30 kg
Dimensions	61 × 23 × 20 cm
Complete Set Weight	30kg
Weight Range Per Dumbbell	2.5kg – 15kg
Plate Sizes Included	4 x 1.25kg / 4 x 1.5kg / 4 x 2kg / 4 x 2.5kg
1.25kg Plate Dimensions	18cm diameter x 30mm thickness
1.5kg Plate Dimensions	18cm diameter x 34mm thickness
2kg Plate Dimensions	19.5cm diameter x 37mm thickness
2.5kg Plate Dimensions	21.5cm diameter x 38mm thickness
Dumbbell Bars	2 x 47cm length x 33mm diameter
Connecting Bar	1 x 40cm length x 40mm diameter
Securing Nuts	4 x 25mm diameter
Plate Hole Diameter	28mm (standard)
Product Dimensions	47 x 21.5 x 21.5 cm
Plate Material	Bitumen
Colour	Black
Warranty	2 years

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Bitumen Dumbbell Set 2 x 15kg

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A dumbbell set that doubles as a barbell without taking up extra space.

Bitumen Plate Construction

Three-in-One Bar System

Four Plate Sizes for Precise Loading

Complete and Ready to Use

Two pieces of equipment, one compact footprint.

Here is why the Bitumen Dumbbell Set 2 x 15kg is the best choice for our customers.