2020 Ronstan Sailboat Hardware Catalogue - VIEW CATALOGUE

PHOTO CREDIT:© Gordon Upton / guppypix.com

Two Speed Mainsheet Systems

Features

  •  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

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  Product No. Desc. Sheave ŲMax. Rope ŲMax. Cable ŲPin ŲM.W.L.B. L.Weight Price
RRP
 
  mmmmmmmmkgkgg    
RF72700 RF72700 3:1 coarse, 6:1 fine, Ratchet and Ball Bearing

75 + 50

10

-

-

800

1700

1490

$ 1,476.10

VIEW
RF72700B RF72700B Bottom blocks for RF72700 two-speed system

75 + 50

10

-

-

800

1700

950

$ 891.63

VIEW
RF72700T RF72700T Top blocks for RF72700 two-speed system

75 + 50

10

-

-

800

1700

560

$ 574.08

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RF72900 RF72900 4:1 coarse, 8:1 fine, Ratchet and Ball Bearing

75 + 50

10

-

-

1100

2300

1610

$ 1,764.91

VIEW
RF72900B RF72900B Bottom blocks for RF72900 two-speed system

75 + 50

10

-

-

1100

2300

1035

$ 1,020.44

VIEW
RF72900T RF72900T Top blocks for RF72900 two-speed system

75 + 50

10

-

-

1100

2300

575

$ 673.87

VIEW

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 appropriate stand-up spring kit. (Refer to traveller section for more information).

Range Selection Advice
  • Two-Speed systems: Mainsheets on sportsboats and keel boats to 12m (40ft)
  • Carbon Black Acetal ball bearings
  • U.V. stabilised Acetal sheaves, alloy ratchet sheaves
  • Cheek plates: Anodised aluminium
  • Torlon® ratchet pawl
  • Adjustable cleat arms