1. Fixed Weight Kettlebells
The classic – robust, reliable, and versatile. These balls are made of solid cast iron and are available in various weight sizes (usually 4–48 kg). Ideal for hardstyle training, strength building, and long-term use.
✅ Recommended for beginners, advanced users, and professionals.
2. Competition Kettlebells
These balls all look the same size – regardless of weight. This makes them ideal for Girevoy Sport, where many repetitions with standardized movement patterns are required. The handles are thinner, and the balance is optimized for endurance performance.
⚠️ Only makes sense if you train in GS.
3. Fitness Kettlebells
They look colorful, often have vinyl coating and extra-wide handles – and unfortunately, they are often completely unsuitable for serious training. The dimensions are incorrect, the surface is usually poor, and the training effect is absent.
❌ Not recommended for functional training.
4. Adjustable Kettlebells
They promise flexibility – one ball, many weights. In practice, however, neither the balance nor the handle design is usually correct. Especially in ballistic exercises, they fail. Most models are at best suitable for simple resistance training.
⚠️ Only usable with limitations – not for dynamic training.
5. Dragondoor Kettlebells (Military Grade)
The gold standard for hardstyle training. These balls are perfectly balanced, cast without edges, with a grippy E-coating surface and ideal proportions. Developed with RKC expertise – not cheap, but unmatched in function and durability.
✅ Best choice for serious kettlebell training and the RKC system.
6. Plastic Kettlebells & Hardware Store Models
These kettlebells often have concrete filling, plastic handles, or poor paint jobs. Many are more like toys than sports equipment. A wrong flip can quickly lead to skin injuries, and the balls are often poorly balanced.
❌ Stay away – unsuitable for real training.
Conclusion:
If you want to train functionally, efficiently, and long-term with kettlebells, you should rely on proven models. For hardstyle training, a solid cast iron kettlebell with a clean grip and appropriate proportions is the tool of choice – ideally a Dragondoor model. Everything else is usually a compromise or a waste of money.
If you want to know which models our RKC instructors work with, you will find recommendations in the next chapter.
