Orders placed after 3PM Friday 24th May will be processed and packed over the Bank Holiday weekend, but will not be collected by the courier until Tuesday 28th May (Click HERE for more information).

Port Solent Store / Click & Collect - Open as usual throughout the weekend and bank holiday Monday
See opening times HERE

Orders placed after 3PM Friday 24th May will be processed and packed over the Bank Holiday weekend, but will not be collected by the courier until Tuesday 28th May (Click HERE for more information).
Port Solent store and click & collect open as usual

Lewmar Synchro Halyard Blocks

£ 21.95 - £ 119.95

Clear

Lewmar’s 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.

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.

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
  • Practical switch from swivelling to fixed shackle

Applications

Plain bearing blocks are typically used for heavy and static loads in:

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

The toggle heads of the halyard blocks are designed to fit on the studs commonly found at mast bases – check the diameter of the stud against the width of the block jaws and pin diameter.

Specifications

Sheave Diameter 50mm 60mm 72mm 90mm
Optimum Line Size 6mm 8mm 10mm 12mm
Max Line Size 10mm 10mm 12mm 14mm
Working Load Limit 450kg 800kg 1100kg 2000kg
Weight 73g 122g 198g 414g
Width 13mm 15mm 18mm 23mm
Pin Diameter 5mm 6mm 8mm 10mm
Space to Pin 8.2mm 6.9mm 9.6mm 13.9mm
Part Number
Size
Port Solent
Warehouse
Y29925021
50mm
1
2
Y29926021
60mm
1
12
Y29927221
72mm
2
2
99530129
90mm
2
0