Through a combination of geometry, sheave ratios and a unique free spin bearing, Lewmar's Synchro range delivers nearly the performace that is achieved by ball and roller bearing blocks used in pro racing.
• Fits Synchro snap shackle
• Optimized sheave to rope ratio
• Swivel lock self aligning head
• Adjustable cams
• Compatible with ocean pad eyes and upstands
• Sheave diameter: 2"
• Sheave SWL: 990 lbs.