Lewmar Synchro blocks are engineered for speed, efficiency and superior handling. They use a combination of scientifically optimised block geometry, a free-spin bearing and self-aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems.
Each component is perfectly synchronised with the movement of the rope, providing you with an easier, smoother transfer of power from deck to sail and less wear on your rope.
Stainless steel strap for improved strength and longer service life
Stiff glass fibre reinforced cheeks to prevent lines from wedging
Innovative design with tool free sliding swivel locking mechanism
Simple switch to change from swiveling to fixed shackle
Plain bearing block are typically used for heavy and static loads in:
Mast foot blocks
Mast head blocks
Working Load Limit: 450kg 990lb
Weight: 142g 5.01oz