Harken 40mm Carbo Air Cheek Block, 485 lb MWL – Reinforced Composite

Master efficient sail control with the Harken 40mm Carbo Air Cheek Block, engineered for demanding sailing applications. This high-performance block combines innovative lightweight construction with exceptional strength, making it ideal for dinghies, sport boats, and small keelboats. Its low-friction design ensures smooth, safe, and easy trimming, even under challenging conditions. Constructed from tough, fiber-reinforced composite, this block offers superior reliability and is proudly part of Harken's renowned Carbo Air line, known for being 30% lighter and 60% stronger than classic blocks. Upgrade your rigging for optimal performance and effortless handling.

Key Benefits & Specifications:

• Optimized for Performance: Features a 40mm (1 9/16 inches) sheave diameter for precise control and quick adjustments.
• High Strength-to-Weight Ratio: Weighs just 34g (1.2 oz), providing significant strength without adding unnecessary bulk to your rigging.
• Robust Load Capacity: Boasts a maximum working load of 220 kg (485 lb) and an impressive breaking load of 735 kg (1620 lb) for secure handling of high stresses.
• Versatile Line Compatibility: Accommodates lines up to 10mm (3/8 inches) in diameter, suitable for a wide range of sailing lines.
• Durable Composite Construction: Ball bearings, sheave, and side plates are UV-stabilized with carbon black, offering excellent protection against long-term exposure to salt water and sun.
• Low-Friction Efficiency: Free-running ball bearings roll on curved races, efficiently dispersing load for fast trim and release.

Recommended Applications:

• Main/jib sheets
• Mainsheet fine-tune
• Control lines
• Vangs
• Cunninghams
• Outhauls