Hola Víctor, el enrrollador es un Isofurl. Supongo que quieres cambiarlo para poder hacer peelings en regata, pues el sistema funciona perfectamente.
La pieza que buscas es esta:
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Halyard Swivel
Though not commonly supplied with most Isofurl systems, a conventional-type Halyard Swivel is sometimes used to replace the Halyard Hoist Locking Car. When using a Halyard Swivel, the halyard stays attached after hoisting the sail, as in conventional furling systems. Available in two sizes to fit the two different size rods.
Isofurl #8 Halyard Swivel: Isofurl 8-HS:
Isofurl #10 Halyard Swivel: Isofurl 10-HS:
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Y la puedes comprar aquí:
http://www.rigrite.com/furling/Isofu...FURL_Main.html