BF, the Block-Friction® violin ring FrD® – has an exceptional weight/strength ratio (10 times lighter than a pulley), designed for a heavy static load.

The Friction Blocks can be used to make vang or mainsail 3:1 or 4:1 hoists on dinghies, as well as Cunningham adjustment hoists, or clew hoists on larger vessels.

• Bobstays
• Foresail 3D trim
• Hoists (mainsail, vang, running backstay,…etc)
• Double sheet hauler
• Bridle

Advantages

• Weight/strength ratio
• Performance, lightness and reliability
• Reliable and maintenance free

Specification:

• Breaking Load: 3200 / 5000 kg
• Lenght: 13cm
• Ø Interne: 25/20mm
• Ø Rope recommended: 14/10mm