Product Details
50mm Synchro Block - Single
Lewmar's Synchro Blocks are engineered for speed, efficiency, and superior handling. Using a combination of scientifically optimized block geometry, a Free-Spin bearing, and a self-aligning head to reduce friction and increase efficiency by up to 40%, over budget blocks on mainsheet systems.
Each component is perfectly synchronized 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.
Features:
- Stainless steel strap for improved strength and longer service life
- Stiff glass fiber reinforced cheeks to prevent lines from wedging
- Innovative design with “tool-free” sliding swivel locking mechanism
Technical Specifications:
- Working Load Limit - 990lb
- Weight - 2.36oz
- Maximum Line Size - .39" (10mm)
*Sold as an Individual

![ANDERSEN 40ST Compact Below Deck Electric FS Winch Variable Speed - 12V [RA2040014100] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/76496XL_{width}x.jpg?v=1677099746)
![ANDERSEN Below Deck Variable Speed Compact Motor Electric Conversion Kit - 12V f/34ST Winch [RA2034214100] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/76286XL_{width}x.jpg?v=1677099666)
![ANDERSEN 46 ST FS - 2-Speed Self-Tailing Manual Winch - Full Stainless Steel [RA2046010000] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55006XL_{width}x.jpg?v=1677092386)
![Lewmar 45ST EVO Self Tailing Winch Alloy - Black [49545055] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/94242XL_{width}x.jpg?v=1677107998)
![Lewmar 45ST EVO Self Tailing Winch Alloy - Grey [49545057] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/94244XL_{width}x.jpg?v=1677107998)
![Lewmar 40ST EVO Self Tailing Winch Alloy - Grey [49540057] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/94241XL_{width}x.jpg?v=1677107998)
![ANDERSEN 40 ST FS - 2-Speed Self-Tailing Manual Winch - Full Stainless Steel [RA2040010000] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55005XL_{width}x.jpg?v=1677092384)
