Lewmar 50mm Synchro Block, Single – Up to 40% More Efficient

Maximize your sailing performance with the Lewmar 50mm Synchro Block, a single block engineered for unparalleled speed, efficiency, and superior handling. This innovative block incorporates scientifically optimized geometry, a Free-Spin bearing, and a self-aligning head to drastically reduce friction and boost efficiency by up to 40% over conventional blocks in critical mainsheet systems. Each component works in perfect synchronization with your rope's movement, ensuring a smoother transfer of power from deck to sail and significantly extending your rope's lifespan. Upgrade your rigging today for a responsive and effortless sailing experience.

Key Benefits & Specifications:

• Enhanced Efficiency: Delivers up to 40% greater efficiency with its Free-Spin bearing and self-aligning head, reducing friction for faster, smoother sail handling.
• Robust Construction: Features a durable stainless steel strap for improved strength and prolonged service life.
• Line Protection: Stiff, glass fiber-reinforced cheeks prevent lines from wedging, maintaining optimal rope integrity.
• Tool-Free Adjustments: Innovative sliding swivel locking mechanism allows for quick and easy, tool-free changes between swiveling and fixed positions.
• High Working Load: Boasts a Working Load Limit (WLL) of 990 lbs, suitable for demanding marine applications.
• Optimal Line Compatibility: Designed for a maximum line size of 0.39 inches (10mm).
• Lightweight Design: Weighs just 2.36 ounces (67g) for minimal added mass to your rigging.

Applications & Compatibility:

• Ideal for critical systems such as halyard tuning, mainsheet systems, mast foot blocks, mast head blocks, and boom vangs.
• The shackle post is specifically designed to fit seamlessly with Lewmar travelers for integrated rigging solutions.