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Ratchet Blocks

Harken 40mm and 57mm ratchet blocks and associated springs.  Harken’s 40mm ratchet block has a smaller opening than the normal 57mm block, reducing the chance of control lines or a loop of mainsheet getting pulled back through.  Read what team GBR sailor Michael Beckett had to say about it here.  Although we love (and use) the Harken 40mm ratchet block it is NOT approved by Harken for use on the ILCA/Laser.
Small Spring - Ronstan RF318
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Spring - Harken 071
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Harken Spring Cup
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Harken Spring Cup $1.88 USD