Harken Carbo Triple AirBlock – 57mm – 2604

Description Harken Carbo Triple AirBlock Carbo AirBlocks are 60% stronger and 30% lighter than Harken’s classic blocks. Use the 57mm carbo main and jib sheets on centreboard and keelboats like Lightnings, Dragons, Solings and J/24s, and for mainsheet systems on catamarans. The nylon resin sideplates are densely packed with long glass fibres for a compact block with a high strength to weight ratio. Sheaves spin on high load ball bearings with fitted races for low friction operation. Ball bearings, sheave and sideplates are UV stabilized with carbon black for maximum protection. Specifications: Sheave: 57mm Length: 121mm Maximum line: 10mm Maximum working load: 1080kg Breaking load: 2270kg