
GYM-03 2x 20 kg adjustable bituminous dumbbells (pre-sale 22.08.2025)
GYM-03 2x 20 kg adjustable bituminous dumbbells (pre-sale 22.08.2025)
- MANUFACTURER'S CODEGYM-03
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ADJUSTABLE DUMBBELL SET 2in1 40 KG – THUNDER® GYM-03
Stay in shape without leaving home! The Thunder® GYM-03 adjustable dumbbell set is a compact and extremely functional solution for full-body training. Thanks to its innovative design, you can switch from classic dumbbells to a full-size barbell in seconds – no tools, no hassle. One product, countless possibilities! Strengthen your arms, chest, back, legs, and abs – just the way you like and wherever you want.

THE SET INCLUDES:
- 4 × 5 kg plates
- 4 × 2.5 kg plates
- 4 × 1.5 kg plates
- 4 × 1 kg plates
- 2 × short dumbbell bars (length: 55 cm)
- 1 × connecting rod with foam grip (length: 40 cm) – enables barbell configuration
- 4 × solid star-shaped collars

2in1 SYSTEM – DUMBBELLS + BARBELL
Thanks to the special connector with a foam grip, two dumbbell bars can be joined into a 112 cm barbell. This solution allows for a variety of workouts without the need to buy extra equipment.

WEIGHT ADJUSTABILITY
Depending on your skill level and type of exercise, you decide how much weight to load onto the bar. The range from 2 kg to 40 kg enables progress and effective muscle development.

DURABLE MATERIALS AND USER COMFORT
- Plates made of durable outer material (plastic coating) that protects floors and dampens noise
- Non-slip grips ensure a firm hold during intense sessions
- High-quality plastic resistant to damage and deformation

INTUITIVE ASSEMBLY AND STORAGE
Star-shaped collars allow for quick and secure plate attachment. After your workout, you can easily disassemble the set and store it anywhere.

TECHNICAL SPECIFICATIONS
- Dumbbell bar: 55 cm
- Grip section length: 13 cm
- Loading section length: 2 × 21 cm
- Connecting rod (foam): 40 cm
- Barbell length when assembled: 112 cm
- Total set weight: 40 kg

Who is it for?
- For those who want to train at home without investing in expensive gym equipment
- For both men and women of all fitness levels
- For people looking to build muscle mass, improve fitness and shape

Train Your Way – Without Limits
Thunder® GYM-03 is a versatile set that replaces multiple devices. Perfect for any apartment, garage, or home gym setup.
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Manufacturer's warranty for 2 years
The manufacturer guarantees the repair or replacement of the equipment up to 24 months from the date of purchase. Contact the store via the claim form to order a courier who will pick up the equipment from your home.
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