The 38mm ring is mainly intended to create a 4:1 mainsheet system. Similar to our existing block combination, the EX1319, you can replace the 29mm block by the 38mm Windesign ring. By changing this block, you create a low friction, less heavy and more durable block combination.
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Optiparts Optimist 38mm Low Friction Ring For 4:1 Mainsheet System
Original price was: $18.93.$13.25Current price is: $13.25.
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