Two-speed Mainsheet System Top Blocks Only

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

PRODUCT INFORMATION
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).

APPLICATIONS
Two-Speed systems: Mainsheets on sportsboats and keel boats to 12m (40ft)
Mainsheets on sportsboats and keelboats to 12m (40')
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