Main Characteristics of the 2bfree Counterballast System
The 2bfree counterballast system is a safety mechanism designed specifically for freediving training and competitions. It provides a reliable way to retrieve a diver from depth in emergency situations.
Developed with simplicity, efficiency, and robustness in mind, this system has become a trusted tool among freediving schools, training centers, and individual athletes.
Here are the main characteristics of the 2bfree counterballast:
1. Manual and Mechanical Activation
The system is manually triggered by pulling a dedicated release line.
No need for electronics, motors, or power sources — the design focuses on mechanical reliability and ease of use in remote or rugged conditions.
2. Counterweight-Based Retrieval
Operates using a heavy counterweight connected to the dive line via a pulley system.
When activated, the counterweight rapidly pulls the dive line up, bringing the diver to the surface in a controlled but swift manner.
3. Fast Deployment
Designed for quick response times. Once triggered, the system engages immediately and retrieves the diver within seconds from depth, depending on the setup and depth involved.
4. Simple Setup and Transport
The 2bfree system is modular and portable, making it easy to install on various platforms, including boats, rafts, or floating pontoons.
Its components are compact and rugged, suitable for frequent travel and use in harsh marine environments.
5. No Electricity Required
Entirely non-electric, removing the risk of failure due to battery issues, saltwater corrosion, or software malfunction.
6. Training and Competition Approved
Widely used in AIDA and CMAS freediving events, the 2bfree system complies with international safety standards and has a strong reputation for reliability.
7. Adaptable for Different Depths
Can be configured with different weights and pulley setups to match the target dive depth and desired retrieval speed.
Main characteristics
• Length: 4 M/ 13ft
• Width: 0,65M/ 2.1ft
• Weight: 9kg/20lbs
• Setup time: 10 min
• No metal bars for safety
• 1 inflatable platform 400x65x15 cm
• 6 stainless steel D-rings and 12 YKK plastic D-rings
• 19 grips, and 2 elastics
• 3 2bfree low friction pulleys with swivels
• 1 stainless steel quick-release carabiner
• 4 aluminum carabiners
• 65x15x30 cm when folded
• 1 pump
• Travel-friendly
• Recovery speed 1,15 m/sec (in test wth recovery an athlete from 50m/164ft with 12kg/27lbs bottom weight and 40kg/88lbs counter ballast)