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Harken 75mm Carbo AirBlocks

Harken 75mm Carbo AirBlocks

The 75mm Carbo easily releases under load

Perfect for mainsheet systems on boats like the Melges 24, J/105 and Henderson 30.


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The compact 75mm Carbo is extremely strong. The high load 75mm Carbo has a broad working range.

Low-friction Carbo AirBlocks from Harken are lightweight, strong, reliable and affordable.

These compact single swivel blocks have very high working loads for safe and easy trimming no matter how hard the wind blows.

Sideplates of high strength resin are UV stabilised to provide excellent protection against long term exposure to saltwater and sun.

Carbo AirBlocks are 60% stronger and 30% lighter than our classic blocks making them perfect for the smaller diameter lines favoured by racers.

ItemMax LoadSafe LoadWeightMax Line DiaPart No
Single Swivel 1650kg 550kg 195g 14mm 2660
Single Swivel Becket 1650kg 550kg 214g 14mm 2661
Single Swivel Cam 340kg 136kg 381g 12mm 2666
Single Swivel Cam Becket 680kg 272kg 397g 12mm 2667
Double Swivel 2722kg 1100kg 402g 14mm 2662
Double Swivel becket 2722kg 1100kg 419g 14mm 2663
Triple Swivel 4535kg 1650kg 580g 14mm 2664
Triple Swivel Becket 4535kg 1650kg 599g 14mm 2665
Triple Swivel Cam 1700kg 680kg 788g 12mm 2668
Triple Swivel Cam Becket 2040kg 816kg 805g 12mm 2669
Quadruple Swivel 4535kg 1650kg 772g 14mm 2677
  • Block Size - 75 mm