Blocks
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57mm Carbo automatic ratchet block with becketSKU: HK2626Harken 57mm Carbo automatic ratchet block with becket. Great for sheetingsystems and downhalls. Use line up to 10mm and the block weights 113 gram. Max workload is 227 kg and breaking strength is 907 kg. Learn More
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57mm Carbo automatic ratchet block with cam cleatSKU: HK2627Harken 57mm Carbo automatic ratchet block with cam cleat. Great for sheetingsystems and downhalls. Use line up to 10 mm and the block weights 266 gram. Max workload is 136 kg and breaking strength is 340 kg. Learn More
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57mm Carbo automatic ratchet block with cam cleat and becketSKU: HK2628Harken 57mm Carbo automatic ratchet block with cleat and becket. Great for sheetingsystems and downhalls. Use line up to 10 mm and the block weights 275 gram. Max workload is 272 kg and breaking strength is 680 kg. Learn More
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57mm Carbo cheek block with automatic ratchet blockSKU: HK2633Harken 57mm Carbo cheek block with automatice ratchet block. Great for sheetingsystems and downhalls. Use line up to 10 mm and the block weights 89 gram. Max workload is 227 kg and breaking strength is 907 kg. Learn More
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75mm Carbo ratchet blockSKU: HK2670Harken 75mm Carbo ratchet block. Great block for big boats, mainly used for sheeting systems and trimlines. Can be used for lines up to 12mm and weighs 227 gram. Has a max workload of 341 kg and a breaking strength of 1361 kg. Learn More
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75mm Carbo ratchet block with becketSKU: HK2671Harken 75mm Carbo ratchet block with becket. Great block for big boats, mainly used for sheetingsystems and trimlines. Can be used for lines up to 12mm and weighs 248 gram. Has a max workload of 341 kg and a breaking strength of 1361 kg. Learn More
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75mm Carbo Cheek Ratchet blockSKU: HK2672Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. Learn More
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75mm Carbo automatic ratchet blockSKU: HK2680Harken 75mm Carbo automatic ratchet block. Great block for big boats, mainly used for sheeting systems and trim lines. Can be used for lines up to 12mm and weights 238 gram. Has a max workload of 341 kg and a breaking strength of 1361 kg. Learn More
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75mm Carbo automatic ratchet block with becketSKU: HK2681Harken 75mm Carbo automatic ratchet block with becket. Great block for big boats, mainly used for sheeting systems and trim lines. Can be used for lines up to 12mm and weighs 255 gram. Has a max workload of 341 kg and a breaking strength of 1361 kg. Learn More
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75mm Carbo cheek block with automatic ratchet blockSKU: HK2682Harken 75 mm Carbo cheek block with automatic ratchet block. Great block for big boats, mainly used for sheeting systems and trim lines. Can be used for lines up to 12 mm and weighs 184 gram. Has a max workload of 341 kg and a breaking strength of 1361 kg. Learn More
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75mm Carbo automatic ratchet block with cam cleatSKU: HK2683Harken 75mm Carbo automatic ratchet block with cam cleat. Great block for big boats, mainly used for sheeting systems and trim lines. Can be used for lines up to 12 mm and weighs 440 gram. Has a max workload of 136 kg and a breaking strength of 340 kg. Learn More
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75mm Carbo automatic ratchet block with cam cleat and becketSKU: HK2684Harken 75 mm Carbo automatic ratchet block with cam cleat and becket. Great block for big boats, mainly used for sheeting systems and trim lines. Can be used for lines up to 12mm and weighs 440 gram. Has a max workload of 272 kg and a breaking strength of 680 kg. Learn More
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Series 40 RTA Orbit Block,Auto, Single, Swivel HeadSKU: RF46100Fully Automatic load sensing ratchet engagement. Swivel shackle head for unlimited block rotation. Stainless steel shackle head and compatibility with sharp fixing points. Learn More
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Series 40 RTM OrbitBlock,Manual, Single, SwivelSKU: RF46100MNow 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, 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
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Series 40 RTA OrbitBlock,Cheek,Clockwise RotationSKU: RF46151Clockwise rotation. Fully automatic, load sensing ratchet engagement. Recessed underside to suit curved mounting surface. Low mounting points for maximum strength Learn More
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Series 40 RTA OrbitBlock, Cheek, Anti-Clockwise RotationSKU: RF46151AAnti-clockwise rotation. Fully automatic, load sensing ratchet engagement. Recessed underside to suit curved mounting surface. Low mounting points for maximum strength Learn More