Blocks
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40mm Carbo T2 Loop blockSKU: HK214840mm Carbo T2 Loop block. Weights only 26 gram, and is suitable for a line up to 10mm. Has a max working load of 220 kg and a breaking load of 544 kg. Learn More
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40mm Carbo T2 block Soft AttachSKU: HK2149Harken 40mm Carbo T2 Soft Attach block. Weighs only 25 gram, and is suitable for a line up to 10mm Has a max working load of 220 kg and a breaking load of 544 kg. Learn More
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40mm Carbo T2 Soft Attach double blockSKU: HK215040mm Carbo T2 Soft Attach double block. Weighs only 48 gram and a line of max 10mm can be used. Has a max working load of 317 kg and a breaking load of 952 kg. Learn More
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57mm Carbo T2 Loop blockSKU: HK2151Harken 57 mm Carbo T2 Loop block, weights 59 gram and can be used for lines up to 11 mm and has a max working load of 359 kg and a breaking load of 1080 kg. Learn More
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57mm Carbo T2 Soft Attach blockSKU: HK2152Harken 57 mm Carbo T2 Soft Attach block can be used for lines up to 11 mm and weighs 57 gram. Great for main sheets and jib sheet. Has a max working load of 359 kg and a breaking load of 1080 kg. Learn More
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18mm Double Carbo Fly blockSKU: HK215818 mm Carbo T2 Soft Attach double block. Weighs only 17 gram and a line of max. 5 mm can be used. Has a max. working load of 204 kg and a breaking load of 680 kg. Learn More
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40mm Carbo T2 Soft Attach RatchamaticSKU: HK2159Harken 40 mm Carbo T2 Soft Attach Ratchamatic is suitable for up to 10 mm of rope and weighs only 25 grams. This automatic ratchet block has a max. working load of 136 kg and a breaking load of 454 kg. Learn More
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57mm Carbo T2 Soft Attach RatchamaticSKU: HK2160Harken 57 mm Carbo T2 Soft Attach Ratchamatic HK2160. This automatic ratchet block weighs only 71 grams and is suitable for rope up to 10 mm. This automatic ratchet block has a max. working load of 227 kg and a breaking load of 907 kg. Learn More
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18mm Carbo Fly block narrowSKU: HK216118 mm Carbo T2 Soft Attach block. Weighs only 7.2 gram and a line of max. 5 mm can be used. Has a max. working load of 125 kg and a breaking load of 450 kg. Learn More
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18mm Carbo Fly blockSKU: HK269818 mm Carbo T2 Soft Attach block. Weighs only 7.2 gram and a line of max. 5 mm can be used. Has a max. working load of 125 kg and a breaking load of 450 kg. Learn More
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57mm Block Single Loop (loop not includedSKU: HK3214Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. Learn More
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75mm Block Single Loop (loop not includedSKU: HK3230Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. Learn More
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30mm Ball Bearing Tie On BlockSKU: SE40310108RBALL BEARING BLOCKS
Ball bearing blocks are used where the loads are more moderate and dynamic. The ball bearings provide for good sheave rotation with the lowest possible friction. Available in 20, 30, 40 and 60 mm sheave diameters. Learn More -
40mm Ball Bearing Tie On BlockSKU: SE40410116RBALL BEARING BLOCKS
Ball bearing blocks are used where the loads are more moderate and dynamic. The ball bearings provide for good sheave rotation with the lowest possible friction. Available in 20, 30, 40 and 60 mm sheave diameters. Learn More -
Series 30 BB Orbit Block,Single & becket, lashing head RF35101SKU: RF35101For mainsheet systems and spinnaker sheets on dinghies to 5m (16ft). Halyard, vang and backstay applications on boats to 5m (16ft) or Control line applications on larger yachts Learn More
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Series 40 Ball Bearing Orbit Block Single RF45101SKU: RF45101Ultra LightWeight . Low friction 2-stage Orbital ball bearing system. Highest working load in its class. Low profile and compact. High performance cleating. Easily fitted and securely retained Dyneema® Link head Learn More
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Series 40 Ball Bearing Orbit Block Single, becket RF45111SKU: RF45111Ultra low profile becket
Easily fitted and securely retained Dyneema® Link head Learn More -
Series 40 Ball Bearing Orbit Block Double RF45201SKU: RF45201Single inner cheeks for minimum Weight & size. Easily fitted and securely retained Dyneema® Link head Learn More
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Series 40 Ratchet Orbit Block Single, AutoSKU: RF46101Now you can enjoy the flexibility of setting up your fitout exactly to suit yourself. Ronstan is the only company that offers a 40mm ratchet block with both auto and manual engagement models* Learn More
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Series 40 Ratchet Orbit Block Single, ManualSKU: RF46102Manual modes allow the ratchet mechanism to be switched on or off as required. This is the preferred mainsheet set-up for many top sailors. Learn More