Lewmar, Synchro Block, Double

$45.95 to $103.95
$45.95 to $103.95

Lewmar, Double Synchro Block provides a combination of geometry, sheave ratios and a unique free-spin bearing to deliver top level performance that nears the performance achieved by ball and roller bearing blocks used in pro racing boats, but at a fraction of the price.

  • 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
  • Wide range of styles available: singles, doubles, triple, fiddle and snatch blocks
  • Unique free-spin self lubricating bearing
  • Optimized sheave to rope ratio
  • Swivel lock self aligning head
  • Adjustable cams
  • Compatible with ocean pad eyes and upstands
  • Sheave diameter: 50mm

Item #
Lewmar, 60mm Synchro Block, Double
Item #:531944-60mm
Type: Double
Weight: 8.9 oz.
Lewmar, 72mm Synchro Block, Double
Item #:531944-72mm
Type: 2,420 lbs.
Weight: Double
Lewmar, 50mm Synchro Block, Double
Item #:531944-50mm
Weight: 0

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All Ladders have a Four (4) year Structural Warranty.


  • All returns must be started within 30 days of receipt of the order.
  • Manufacturer defects reported within 30 days of receipt will be supplied a pre-paid label for return shipping upon approval.
  • Please contact Go2marine LFS Marine and Outdoor for Manufacture Defects, Returns and help with Warranties.