
Lewmar Synchro Block Double and Becket (72mm)
Lewmar Synchro Block Double and Becket 72mm has been 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.
Plain bearing blocks are typically used for heavy and static loads in halyard tuning, mainsheet systems, mast foot blocks, mast head blocks and boom vang applications.
Lewmar 29927205BK Synchro Block Double 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
Boat Type: Sail
Block Type: Double becket
Sheave Diameter: 72mm
Boat Length: 31-50ft
Out of stock items can be ordered and shipped out within 3-5 working days
We despatch all orders within 24 hours. Orders placed weekdays before 4pm will be shipped the same day.
Call us and speak to an expert on 0191 4297309 - (Mon - Fri / 9am - 5pm).
Pickup available at Marine Chandlery: North Shields
Usually ready in 1 hour

Lewmar Synchro Block Double and Becket (72mm)
Marine Chandlery: North Shields
Unit G4 Narvik Way
Tyne Tunnel Trading Estate
North Shields NE29 7XJ
United Kingdom

Lewmar Synchro Block Double and Becket 72mm has been 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.
Plain bearing blocks are typically used for heavy and static loads in halyard tuning, mainsheet systems, mast foot blocks, mast head blocks and boom vang applications.
Lewmar 29927205BK Synchro Block Double 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
Boat Type: Sail
Block Type: Double becket
Sheave Diameter: 72mm
Boat Length: 31-50ft
Lewmar Synchro Block Double and Becket 72mm has been 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.
Plain bearing blocks are typically used for heavy and static loads in halyard tuning, mainsheet systems, mast foot blocks, mast head blocks and boom vang applications.
Lewmar 29927205BK Synchro Block Double 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
Boat Type: Sail
Block Type: Double becket
Sheave Diameter: 72mm
Boat Length: 31-50ft
Delivery information
Standard delivery: 3-5 working days
Express delivery: 1-2 working days
Free delivery on orders over £100








