Lewmar 90mm Synchro Block - Single

The Lewmar 90mm Synchro Block – Single is a precision-engineered pulley system designed for sailors and boaters who demand reliable load distribution across their rigging. This single block is ideal for managing mainsheet tension on cruising sailboats or coordinating deck hardware on larger vessels, providing the mechanical advantage and durability needed for consistent performance in demanding marine conditions.

Built to Lewmar's exacting standards, the Synchro Block features a 90mm diameter sheave engineered to minimize friction and distribute rope load evenly, reducing stress on lines and fittings throughout your rig. Machined from corrosion-resistant materials and finished to withstand saltwater exposure, the block's compact footprint and lightweight construction ensure it won't add unnecessary weight aloft while delivering the strength your system requires.

This block performs best when integrated into mainsheet systems, jib lead configurations, or boom vangs, making it a versatile choice for various sailing applications. Riggers and boat owners appreciate the smooth-running sheave design that reduces chafe and wear on lines, translating directly to longer line life and lower maintenance costs.