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Harken 57mm Carbo Air Block — Swivel, Becket, Cam Cleat is a versatile, all-in-one solution designed for efficient trimming, secure line handling and flexible rigging in performance sailing systems. Combining a low-friction block with an integrated cam cleat and becket, this setup delivers smooth control and reliable holding in a compact, high-strength design.
Part of the trusted Carbo Air range, this block offers lightweight durability and consistent performance under load. The swivel head allows the block to align naturally as loads change, reducing friction and improving efficiency, while the cam cleat provides quick, secure line locking. The integrated becket enables additional purchase configurations, making it ideal for more complex control systems.
Perfect for mainsheet systems, vangs and control lines on dinghies and small keelboats, this block provides a clean, efficient and highly adaptable solution for demanding sailing conditions.
Specifications
Length: 132 mm / 5 3/16 in
Weight: 442 g / 15.6 oz
Sheave Diameter: 57 mm / 2 1/4 in
Maximum Line Diameter: 10 mm / 3/8 in
Maximum Working Load: 272 kg / 600 lb
Breaking Load: 680 kg / 1500 lb
Shackle Pin Diameter: 5 mm / 3/16 in
Key Features
- All-in-one block with integrated cam cleat and becket
- Low-friction Carbo Air design for smooth, efficient trimming
- Swivel head for optimal alignment under changing loads
- Cam cleat allows quick, secure line locking
- Becket enables additional purchase and flexible rigging setups
- Lightweight yet strong construction for performance sailing
- Compact design reduces the need for additional hardware
- Ideal for mainsheets, vangs and control systems
- Suitable for dinghies and small keelboats
- Reliable performance for racing and active sailing use
