Why choose hexagonal dumbbells rather than round ones?

The hexagonal head prevents the dumbbell from rolling away when you set it down on the floor during exercises such as the renegade row, devil’s press or rest-pause training. In a commercial gym or a CrossFit box, where circuit training is common, this stability is essential for safety and a smooth workout. Round dumbbells, on the other hand, require supports or roll away, slowing down your workout pace.

What does ‘non-rotating grip’ mean, and what impact does it have on your training?

The chrome-plated handle is welded to the rubber-coated head: it does not rotate during the exercise. This means that in ballistic movements such as the barbell snatch, clean or swing, you must actively control the rotational inertia of the weights. The result is a more comprehensive muscle workout, particularly for the forearms, wrist stabilisers and core, compared to dumbbells with rotating handles, which reduce the effort required.

Is the 4–26 kg set suitable for a commercial weight room, or is a wider range required?

For a general-purpose commercial gym, this set covers 70–80 per cent of requirements: rehabilitation, metabolic training, HIIT circuits, and beginner to intermediate users. However, it lacks the heavier weight range (28–40 kg) required by advanced bodybuilders or powerlifters for exercises such as the chest press, shoulder press and heavy goblet squats. In a personal training studio or CrossFit box focused on functional training, on the other hand, the 4–26 kg range is often sufficient when supplemented with barbells and kettlebells.

How do you arrange 12 pairs of dumbbells on the rack (item no. 8880) included?

Rack no. 8880 has three horizontal shelves, each holding four pairs. The set includes numbered markers from 4 to 26 kg to quickly identify each weight. When setting up the rack, it is advisable to place the light weights (4–12 kg) on the top shelf, the medium weights (14–20 kg) in the middle, and the heavy weights (22–26 kg) at the bottom: this facilitates an ergonomic grip and reduces the risk of incorrect lifting techniques when retrieving weights.

Can the hexagonal rubber withstand heavy use outdoors or in an unheated garage gym?

The virgin rubber surface is formulated to withstand damp, moderate temperature fluctuations and indirect UV exposure. In an Italian garage gym (temperatures -5°C to +35°C) or under a canopy, it will last for years. However, permanent use in direct rain or under the blazing summer sun is not recommended: the rubber may harden and crack after 12–18 months. For true outdoor installations, specific UV-stabilised rubber is required (not included in this model).

Is the Ø 28–34 mm handle standard or oversized?

The diameter varies progressively with weight: 28 mm on light dumbbells (4–10 kg), up to 34 mm on heavy weights (22–26 kg). This is an ergonomic standard that ensures a secure grip even for small hands when handling lighter weights, and optimal weight distribution when handling heavier weights. The deep knurling compensates for sweaty hands, but is not as aggressive as that used in powerlifting: you can train at high volumes without damaging your skin.

Can I buy individual dumbbells to extend the set beyond 26 kg?

Yes, the Hex Rubber Dumbbell Sidea range includes individual dumbbells (item nos. 8904–8950) up to 50 kg, which can also be sold in pairs. You can therefore add 28, 30, 32 kg and above whilst maintaining aesthetic and technical consistency. Please note, however, that the rack (item no. 8880) included in the kit can only hold 12 pairs. For weights exceeding 26 kg, you will need a second rack or a model with a larger capacity.

What maintenance do rubber-coated dumbbells require in a high-traffic commercial setting?

Clean weekly with a damp cloth and a mild detergent to remove sweat, chalk and dust. The chrome-plated grip must be dried immediately afterwards to prevent oxidation caused by chlorides in sweat. The hexagonal rubber grip requires no lubrication or special treatment.

What instalment payment options are available?

Sidea offers a range of instalment payment options to make it easier to purchase professional equipment. Please see the dedicated page: Sidea Payment Options.

I’m a fitness professional – can I get special rates?

If you work in the fitness or sports sector, register on the website as a Professional or as an ASD to gain access to the price list reserved for industry professionals. Pro registration allows you to view exclusive discounts and special terms across the entire Sidea catalogue.

Is Sidea listed on the MEPA for public sector procurement?

Yes, Sidea is an authorised supplier on the MEPA (Public Administration Electronic Marketplace). Public bodies, schools, universities, local authorities and public sports facilities can purchase Sidea equipment via the Acquisti in Rete PA platform. For information on product codes and direct MEPA orders, please contact Sidea customer service.

What are Sidea’s returns and warranty terms?

Sidea guarantees the right to cancel within 14 days of delivery for all online purchases, in accordance with current legislation. Products must be returned undamaged and in their original packaging. For full details on returns, refunds and the warranty, please see the Terms and Conditions of Sale page.

Why choose Sidea equipment?

Sidea has been designing and distributing professional fitness equipment since 1999: over 25 years’ experience serving gyms, sports coaches, CrossFit boxes, personal training studios and enthusiasts of advanced home fitness. Official distributor for StrongFirst and Luxiaojun, exhibiting at the FIBO international trade fair and technical sponsor of the Summit of Strength. Every product is developed with a focus on durability, functionality and suitability for real-world use. The Gym Design service offers bespoke design with 3D renderings. A warehouse covering over 4,000 m² in Gambettola (FC) ensures rapid order fulfilment, direct technical advice and a special price list for professionals and amateur sports clubs (ASD).

Filter by Category

Promotional kit

Sidea professional weight dispenser for fitness equipment, 4 kg capacity, robust and user-friendly design for gyms and fitness centres.

6kg Sidea weight, an accessory for professional fitness equipment, with a compact and durable design.

Sidea professional dumbbell rack with weight and direction markings, ideal for high-quality fitness equipment.

Sidea 10kg weight dispenser, sturdy and compact, ideal for professional fitness equipment.

A robust and accurate 12kg Sidea weighing device, ideal for professional fitness equipment.

Sidea professional dumbbell rack with a capacity of 14 kg, featuring a sturdy and durable design, ideal for high-quality fitness equipment.

22 kg Sidea digital weighing device, ideal for professional fitness equipment, with a display and control buttons.

24 kg digital scale for professional fitness equipment, with a display and control buttons, ideal for barbells and dumbbells.

Sidea professional dumbbell rack with a capacity of 26 kg, featuring a sturdy, user-friendly design, ideal for gyms and home workouts.

8904K26B Hex Rubber Dumbbell Set 4–26 + Rack

The product is not available in your country.

The kit includes a total of 360 kg of dumbbells in pairs, a dumbbell rack and 12 dumbbell rack markers

Weight tolerance: +/-3%

View more product details >>

View data sheet >>

New installations - Gym Design projects

The product is not available in your country.

Statutory guarantee of conformity: 2 years for consumers. See the official notice - Read the page - europa.eu/youreurope/guarantees

Product with no spare parts. Any maintenance instructions can be found in the technical data sheet.

8904K26B Hex Rubber Dumbbell Set 4–26 + Rack – Hexagonal rubber-coated dumbbells

The Hex Rubber Dumbbell Set – comprising dumbbells with fully rubber-coated hexagonal heads, so that the equipment can also be used whilst resting on the floor.

The chrome-plated handle, with a deep knurled grip, is not rotatable, so the work that is done using these dumbbells is not relieved by the lack of inertia due to the rotation of the masses during exercises, but is full and high impact training. Dumbbells can be stored and ordered via the Dumbbell Rack Code 8880.

Socket size Ø 28 mm - Ø 34 mm x 130 mm

Kit consisting of:

code 8904 single dumbbell kg 04 x 2
code 8906 single dumbbell kg 06 x 2
code 8908 single dumbbell kg 08 x 2
code 8910 single dumbbell kg 10 x 2
code 8912 single dumbbell kg 12 x 2
code 8914 single dumbbell kg 14 x 2

code 8916 single dumbbell kg 16 x 2
code 8918 single dumbbell kg 18 x 2
code 8920 single dumbbell kg 20 x 2
code 8922 single dumbbell kg 22 x 2
code 8924 single dumbbell kg 24 x 2
code 8926 single dumbbell kg 26 x 2

MARKER DUMBBELL RACK 4kg x 1
MARKER DUMBBELL RACK 6KG x1
MARKER DUMBBELL RACK 8KG x1
MARKER DUMBBELL RACK 10kg x1
MARKER DUMBBELL RACK 12KG x1
MARKER DUMBBELL RACK 14KG x1
MARKER DUMBBELL RACK 16KG x1

MARKER DUMBBELL RACK 18KG x1
MARKER DUMBBELL RACK 20kg x 1
MARKER DUMBBELL RACK 22kg x 1
MARKER DUMBBELL RACK 24KG x1
MARKER DUMBBELL RACK 26KG x1

8880 Dumbbell Rack x1

Weight	420 kg

AVVERTENZE DI SICUREZZA

How to use dumbbells with heavy weights

When using dumbbells with higher weights, special care must be taken, especially in the phase immediately following use.

In order to use Black PU Rubber Dumbbells weighing more than 40 kg to perform bench presses on an inclined bench, it is necessary to pick up the dumbbells one at a time from the floor, place them on the thighs and then bring them into position to perform the exercise. When the exercise is finished, while lying on the bench, bring your knees into contact with the dumbbells and return to a seated position using the weight of the dumbbells. Now place them one at a time on the floor, without letting them fall.

Upload Image...

The hexagonal head prevents the dumbbell from rolling away when you set it down on the floor during exercises such as the renegade row, devil’s press or rest-pause training. In a commercial gym or a CrossFit box, where circuit training is common, this stability is essential for safety and a smooth workout. Round dumbbells, on the other hand, require supports or roll away, slowing down your workout pace.
The chrome-plated handle is welded to the rubber-coated head: it does not rotate during the exercise. This means that in ballistic movements such as the barbell snatch, clean or swing, you must actively control the rotational inertia of the weights. The result is a more comprehensive muscle workout, particularly for the forearms, wrist stabilisers and core, compared to dumbbells with rotating handles, which reduce the effort required.
For a general-purpose commercial gym, this set covers 70–80 per cent of requirements: rehabilitation, metabolic training, HIIT circuits, and beginner to intermediate users. However, it lacks the heavier weight range (28–40 kg) required by advanced bodybuilders or powerlifters for exercises such as the chest press, shoulder press and heavy goblet squats. In a personal training studio or CrossFit box focused on functional training, on the other hand, the 4–26 kg range is often sufficient when supplemented with barbells and kettlebells.
Rack no. 8880 has three horizontal shelves, each holding four pairs. The set includes numbered markers from 4 to 26 kg to quickly identify each weight. When setting up the rack, it is advisable to place the light weights (4–12 kg) on the top shelf, the medium weights (14–20 kg) in the middle, and the heavy weights (22–26 kg) at the bottom: this facilitates an ergonomic grip and reduces the risk of incorrect lifting techniques when retrieving weights.
The virgin rubber surface is formulated to withstand damp, moderate temperature fluctuations and indirect UV exposure. In an Italian garage gym (temperatures -5°C to +35°C) or under a canopy, it will last for years. However, permanent use in direct rain or under the blazing summer sun is not recommended: the rubber may harden and crack after 12–18 months. For true outdoor installations, specific UV-stabilised rubber is required (not included in this model).
The diameter varies progressively with weight: 28 mm on light dumbbells (4–10 kg), up to 34 mm on heavy weights (22–26 kg). This is an ergonomic standard that ensures a secure grip even for small hands when handling lighter weights, and optimal weight distribution when handling heavier weights. The deep knurling compensates for sweaty hands, but is not as aggressive as that used in powerlifting: you can train at high volumes without damaging your skin.
Yes, the Hex Rubber Dumbbell Sidea range includes individual dumbbells (item nos. 8904–8950) up to 50 kg, which can also be sold in pairs. You can therefore add 28, 30, 32 kg and above whilst maintaining aesthetic and technical consistency. Please note, however, that the rack (item no. 8880) included in the kit can only hold 12 pairs. For weights exceeding 26 kg, you will need a second rack or a model with a larger capacity.
Clean weekly with a damp cloth and a mild detergent to remove sweat, chalk and dust. The chrome-plated grip must be dried immediately afterwards to prevent oxidation caused by chlorides in sweat. The hexagonal rubber grip requires no lubrication or special treatment.
Sidea offers a range of instalment payment options to make it easier to purchase professional equipment. Please see the dedicated page: Sidea Payment Options.
If you work in the fitness or sports sector, register on the website as a Professional or as an ASD to gain access to the price list reserved for industry professionals. Pro registration allows you to view exclusive discounts and special terms across the entire Sidea catalogue.
Yes, Sidea is an authorised supplier on the MEPA (Public Administration Electronic Marketplace). Public bodies, schools, universities, local authorities and public sports facilities can purchase Sidea equipment via the Acquisti in Rete PA platform. For information on product codes and direct MEPA orders, please contact Sidea customer service.
Sidea guarantees the right to cancel within 14 days of delivery for all online purchases, in accordance with current legislation. Products must be returned undamaged and in their original packaging. For full details on returns, refunds and the warranty, please see the Terms and Conditions of Sale page.
Sidea has been designing and distributing professional fitness equipment since 1999: over 25 years’ experience serving gyms, sports coaches, CrossFit boxes, personal training studios and enthusiasts of advanced home fitness. Official distributor for StrongFirst and Luxiaojun, exhibiting at the FIBO international trade fair and technical sponsor of the Summit of Strength. Every product is developed with a focus on durability, functionality and suitability for real-world use. The Gym Design service offers bespoke design with 3D renderings. A warehouse covering over 4,000 m² in Gambettola (FC) ensures rapid order fulfilment, direct technical advice and a special price list for professionals and amateur sports clubs (ASD).

Sign up for Newsletter

RACKS & SIDEA STRUCTURES

HIIT cardio machines

Functional Training

HomeGym

Strong fitness training

Group activity

Holistic Training

Balance training

Speed and Agility training

Calisthenics training

Combat-Fitness boxing

Sidea catalogue

CONDITIONING

Elastics

Barbells

Strength

Holistic

KIt

Functional

Flooring

storage

AEROBICS & AGILITY

Cardio

HOME & GARAGE GYM

GYM DESIGN

SPACE IDEAS

Installation Portfolio

Hex Rubber Dumbbell