Ronstan Two-speed Mainsheet System, Ratchet, 6:1 / 3:1

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Two-speed mainsheet systems allow both coarse and fine tuning in a single purchase system. The system allows fine tuning of the mainsheet when sailing upwind by using one of the sh eet tails and keeping the other cleated. Using both the sheets at once allows the trimmer to blow off the main quickly when rounding the top mark and trim on quickly when hardening up after rounding the bottom mark. When fitting to traveller cars, ensure adequate support for the bottom block and use stand-up spring kit RF324-1 or RF324-2. Applications: Two-Speed systems: Mainsheets on sportsboats and keel boats to 12m (40ft). Mainsheets on sportsboats and keelboats to 12m (40 in). Max. mainsail area, END boom sheeting = 38sq m (409 sq ft). Max. mainsail area, MID boom sheeting = 23sq m (248 sq ft). Materials: Carbon Black Acetal ball bearings. U.V. stabilised Acetal sheaves, alloy ratchet sheaves. Cheek plates: Anodised aluminium. Torlon® ratchet pawl. Adjustable cleat arms. Our Part # RONRF72700 | Mfr. Part # RF72700 Show more