Harken 2180 18mm Fly Soft-Attach Triple Block

Harken 18mm Fly Soft Attach Triple Block is a compact, ultra-lightweight solution designed for high-load, high-performance applications where efficiency and weight saving are critical. Built with Harken’s Fly block technology, this triple block delivers exceptional strength relative to its size while maintaining a low-profile, low-aero design.

Engineered specifically for modern high-tech lines, the 18mm Fly Triple features stainless steel ball bearings and an integrated stainless-steel inner race and rivet for smooth, reliable performance under load. Composite fibre-reinforced sideplates provide durability without adding weight, making it ideal for performance dinghies, sportboats and advanced rigging systems.

The triple configuration includes integrated composite line guides within the block head, ensuring correct alignment by keeping the lashing line positioned at the outer edges. This improves efficiency and reduces friction in multi-line systems. Increasingly used beyond sailing, this block is also popular in high-performance sport fishing setups, particularly on outrigger halyards for trolling.

A length of Spectra line is included, offering a strong, lightweight soft-attachment solution straight out of the box.

Specifications

Length: 28 mm / 1 3/32 in

Weight: 28.4 g / 1 oz

Sheave Diameter: 18 mm / 23/32 in

Maximum Line Diameter: 5 mm / 3/16 in

Maximum Working Load: 272 kg / 600 lb

Breaking Load: 499 kg / 1100 lb

Key Features

• Soft-attach triple block for lightweight, high-performance rigging
• Exceptional strength-to-weight ratio in a compact design
• Stainless steel ball bearings for smooth, low-friction operation
• Integrated stainless-steel inner race and rivet for durability
• Composite fibre-reinforced sideplates for strength without added weight
• Integrated composite line guides for improved alignment and efficiency
• Low-profile, low-aero design ideal for performance sailing
• Designed for use with modern high-tech lines
• Suitable for dinghies, sportboats and advanced control systems
• Also used in high-performance sport fishing outrigger systems
• Supplied with Spectra lashing line