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Ronstan Two-speed Mainsheet System Bottom Blocks Only

Ronstan Two-speed Mainsheet System Bottom Blocks Only

Product Details

    Technical Description

    Imperial Metric
    Sheave Dia. 3" + 2" 75 mm + 50 mm
    Max. Rope Dia. 3/8" 10 mm
    Maximum Working Load 1760 lb 800 kg
    Breaking Load 3750 lb 1700 kg
    Weight 30.2 oz 855 g

    Product Description

    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 sheet 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.

    • Coarse and and fine tuning purchase system.
    • Unrivalled 18:1 holding power.
    • Dual sided On-Off switch.
    • Low friction ball bearing system.
    • Lightweight.
    • Cheek cut-outs for easy bearing maintenance.
    • Carbon Black Acetal ball bearings.
    • U.V. stabilised Acetal sheaves, alloy ratchet sheaves.
    • Alloy cheeks.
    • Adjustable cleat arms.

    Mainsheets on sportsboats and keel boats to 12 m (40 ft), mainsheets on sportsboats and keelboats to 12 m (40'), max. mainsail area, END boom sheeting = 38sq m (409 sq ft), max. mainsail area, MID boom sheeting = 23sq m (248 sq ft).

    Part Number: RF72700B

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