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Opti Mainsheet Clip Block 4:1

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Specially made by the West Coast Sailing Rigging Department for the top Optimist competitor, this is the ultimate 4:1 mainsheet block and clip. An upgrade over our standard mainsheet clip block, this assembly allows a 4:1 purchase which can be super helpful in heavy air. 

  • Hardware: Harken 40mm Carbo and 29mm Carbo Blocks, Snap Shackle
  • Line: 3mm Dyneema

How to rig:

  • Clip mainsheet block to bridle ring
  • Place mainsheet in back of cockpit. 
  • Pass end of mainsheet back to front through the aft mainsheet block on the floor. 
  • Pass the mainsheet up to the 40mm (upper) block in the mainsheet clip block, passing back to front. 
  • Run mainsheet back down to the forward mainsheet block on the floor.
  • Pass the mainsheet front to back through this block, then back up to the mainsheet clip block.
  • Pass the mainsheet up to the 29mm (lower) block in the mainsheet block block, passing back to front.
  • Run the mainsheet back down to the forward mainsheet block on the floor, passing the end through the hole in the block and securing with an eight knot.
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