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 19.8 oz 560 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.

• Unrivalled 18:1 holding power.
• Dual sided On-Off switch.
• Low friction ball bearing system.
• Lightweight.
• Cheek cut-outs for easy bearing maintenance.
• Coarse and and fine tuning purchase system.
• Carbon Black Acetal ball bearings.
• U.V. stabilised Acetal sheaves, alloy ratchet sheaves.
• Alloy cheeks.
• Torlon® ratchet pawl.
• 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: RF72700T

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Ronstan Two-speed Mainsheet System Top Blocks Only
Original Price: $ 435.24
Price: $ 369.95

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