Lewmar 50 mm (2") Synchro Block

Lewmar Synchro blocks are engineered for speed, efficiency and superior handling. We 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.

Features:

• 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 swivelling to fixed shackle

Applications:

• Halyard tuning
• Mainsheet systems
• Mast foot blocks
• Mast head blocks
• Boom vang

Specifications:

• Block size: 50 mm (2")
• Block Safe Working Load: 800 kg (1762 lbs)
• Maximum Line Size: 10 mm (3/8")
• Post Diameter: 9.4 mm (3/8")
• Shackle Pin Diameter: 5 mm (3/16")
• Fits Traveler Upstand: Sz1NTR
• Fits Block Upstand: 19811000