Harken 2641 40mm Carbo Air Triple Block with Swivel and Becket

The Harken 2641 40mm Carbo Air® Triple Block with Swivel and Becket is a high-performance, ball-bearing sailing block engineered for racers and performance sailors who demand maximum efficiency at minimum weight. Part of Harken's award-winning Carbo Air® line, this triple block delivers a reliable 3:1 purchase system with a swivel and integrated becket for versatile rigging configurations.

Key Features:

• Lightweight Construction: Consistently 30% lighter than equivalent Classic blocks, reducing overall boat weight and improving handling
• Superior Strength: 60% higher working load capacity than Classic blocks, with a maximum working load of 1,455 lbs (660 kg)
• High-Strength Sideplates: Nylon-resin sideplates densely packed with long-glass fibers deliver a compact block with an outstanding strength-to-weight ratio
• Low-Friction Ball Bearings: Sheaves spin on high-load ball bearings with fitted races for smooth, efficient line movement under load
• UV-Stabilized Materials: Sheave, ball bearings, and sideplates are UV-stabilized with black additive for long-term protection in marine environments
• Swivel Attachment: Patented swivel design locks the shackle in front or side positions, or allows the block to freely swivel to prevent line twisting
• Becket Included: Integrated becket provides a fixed attachment point for the standing end of the line, enabling efficient multi-part purchase systems
• Maximum Line Diameter: Accepts up to 10mm (3/8 in) line
• Sheave Diameter: 40mm (1-9/16 in)

Ideal for jib and mainsheet systems on high-performance dinghies and for heavily loaded control lines on small keelboats, the Harken 2641 is a compact, dependable block that delivers race-proven performance. Recipient of both the Dame Award and Sail Magazine's Freeman-Pittman Award for innovation, the Carbo Air® series represents Harken's commitment to fiber-reinforced composite construction and exceptional strength-to-weight engineering.