Blocks
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57mm Carbo Ratchamatic double BlockSKU: HK2634The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless. Use the 2634 with a 402 or 403 swivel arm for a versatile two-speed mainsheet system. Learn More€333.95 €333.95
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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€108.95 €108.95
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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€122.95 €122.95
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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€105.95 €105.95
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57mm Carbo fiddle with ratchetSKU: HK2673Harken 57mm Carbo fiddle with ratchet. Great for sheetingsystems and downhalls. Use line up to 10 mm and the block weighs 113 gram. Max workload is 360kg and breaking strength is 1080 kg. Learn More€114.95 €114.95
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57mm Carbo fiddle with ratchet and becketSKU: HK2674Harken 57mm Carbo fiddle with ratchet and becket. Great for sheetingsystems and downhalls. Use line up to 10 mm and the block weights 121 gram. Max workload is 360 kg and breaking strength is 1080 kg. Learn More€121.95 €121.95
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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€168.95 €168.95
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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€183.95 €183.95
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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€180.95 €180.95
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75mm Carbo fiddle with ratchetSKU: HK2694Harken 75 mm Carbo fiddle with ratchet. Great block for big boats, mainly used for sheeting systems and trim lines. Can be used for lines up to 12 mm and weights 270 gram. Has a max. workload of 550 kg and a breaking strength of 1650 kg. Learn More€151.95 €151.95
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75mm Carbo fiddle with ratchet and becketSKU: HK2695Harken 75 mm Carbo fiddle with ratchet and becket. Great block for big boats, mainly used for sheeting systems and trim lines. Can be used for lines up to 12 mm and weights 289 gram. Has a max. workload of 550 kg and a breaking strength of 1650 kg. Learn More€158.95 €158.95
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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€74.99 €74.99
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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€77.49 €77.49
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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€70.99 €70.99
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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€75.99 €75.99
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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€72.49 €72.49
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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€72.49 €72.49
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Series 55 RT Orbit Block, Single Swivel Head RF56100SKU: RF56100Swivel shackle head for unlimited block rotation. Stainless steel shackle head and compatibility with sharp fixing points. Automatic & manual ratchet block Learn More€95.99 €95.99
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Series 55 Ratchet Orbit Block Single, Auto & Manual RF56101SKU: RF56101Easily fitted and securely retained Dyneema® Link head. Automatic & manual ratchet block Learn More€90.99 €90.99
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Series 55 RT Orbit Block, Cheek, Clockwise Rotation RF56151SKU: RF56151• Up to 20:1 holding power
• Smooth easing of sheets
• High performance cleating
• Automatic & manual ratchet block Learn More€89.49 €89.49
