Lewmar 2020209464 60mm Double Block Synchro with Locking Swivel Head

The Lewmar 60mm Synchro Double Block is engineered for exceptional speed, efficiency, and superior handling in high-performance sailing applications. This double block features scientifically optimized geometry, high-density free-spin bearings, and a self-aligning head that work together to reduce friction by up to 40% compared to standard budget blocks, delivering smoother power transfer from deck to sail.

Key Features:

• 60mm (2-3/8") sheave diameter for optimal line control
• 1,760 lb working load limit for reliable performance
• Accommodates 5/16" to 3/8" lines with 3/16" maximum pin diameter
• High-density free-spin bearing reduces axle diameter for superior efficiency
• Tool-free sliding swivel locking mechanism switches easily between swiveling and fixed configurations
• Stainless steel strap construction for enhanced strength and longer service life
• Stiff glass fiber reinforced cheeks prevent lines from wedging
• Shackle post designed for seamless compatibility with Lewmar travelers

Each component is perfectly synchronized with rope movement, providing smoother sail handling and significantly reduced rope wear. Ideal for halyard tuning, mainsheet systems, mast foot and head blocks, and boom vangs on racing and cruising sailboats.