{"title":"Series 55 Orbit Ratchet Blocks","description":"","products":[{"product_id":"ronstan-series-55-orbit-block-ratchet","title":"Ronstan Series 55 Orbit Block Ratchet","description":"\u003cp\u003e\u003cstrong\u003eRonstan Series 55 Orbit Block Ratchet\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic ratchet block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes*. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.\u003c\/p\u003e\n\u003cp\u003eSelected Series 55 models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAwesome ratchet block holding power\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQuite simply, Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated CNC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 20:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlimited block rotation\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head and compatibility with sharp fixing points\u003c\/li\u003e\n\u003cli\u003eAutomatic \u0026amp; manual ratchet block\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePin Ø (in): 3\/16\u003c\/li\u003e\n\u003cli\u003eMax. Rope diameter (in): 3\/8\u003c\/li\u003e\n\u003cli\u003eSheave diameter (in): 2 5\/32\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSheave: Anodised Aluminium\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eHead fitting: grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan Sailboat Hardware","offers":[{"title":"Default Title","offer_id":53594469663092,"sku":"RONRF56100","price":93.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/RONRF56100-2__77664.jpg.1428984928.jpg?v=1761730511"},{"product_id":"ronstan-series-55-orbit-block-ratchet-with-link-head","title":"Ronstan Series 55 Orbit Block Ratchet with Link Head","description":"\u003cp\u003e\u003cstrong\u003eRonstan Series 55 Orbit Block Ratchet with Link Head\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic ratchet block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes*. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.\u003c\/p\u003e\n\u003cp\u003eSelected Series 55 models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAwesome ratchet block holding power\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQuite simply, Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 20:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSimple and secure attachment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Dyneema Link is easily fitted and is retained securely by a moulded retainer clip. The flexible link can be left with one end attached to the block when fitting - no more lost shackle pins. The system is compatible with Dyneema\/Spectra strops, webbing and caron connection points - much more so than steel loop tops or shackles. In auto mode, the sheet runs out smoothly and freely sas soon as the ratchet mechanism disengages. In manual mode, the sheave cross-hole geomtry eliminates the 'shuddering' run-out that you can expect from traditional v-groove ratchet blocks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eEasily fitted and securely retained Dyneema Link head\u003c\/li\u003e\n\u003cli\u003eAutomatic \u0026amp; manual ratchet block\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMax. Rope diameter (in): 3\/8\u003c\/li\u003e\n\u003cli\u003eSheave diameter (in): 2 5\/32\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSheave: Anodised Aluminium\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilised, multi-strand impregnated SK75 Dyneema\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan Sailboat Hardware","offers":[{"title":"Default Title","offer_id":53594470580596,"sku":"RONRF56101","price":93.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/RONRF56101-2__84861.jpg.1428984928.jpg?v=1761730515"},{"product_id":"ronstan-series-55-orbit-block-ratchet-with-becket","title":"Ronstan Series 55 Orbit Block Ratchet with Becket","description":"\u003cp\u003e\u003cstrong\u003eRonstan Series 55 Orbit Block Ratchet with Becket\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic ratchet block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.\u003c\/p\u003e\n\u003cp\u003eSelected Series 55 models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAwesome ratchet block holding power\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQuite simply, Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 20:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eAutomatic and manual ratchet block\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePin Ø (in): 3\/16\u003c\/li\u003e\n\u003cli\u003eMax. Rope diameter (in): 3\/8\u003c\/li\u003e\n\u003cli\u003eSheave diameter (in): 2 5\/32\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSheave: Anodised Aluminium\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eRope Link: UV-stabilised, multi-strand impregnated SK75 Dyneema\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan Sailboat Hardware","offers":[{"title":"Default Title","offer_id":53594471432564,"sku":"RONRF56110","price":91.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/RONRF56110-2__92363.jpg.1428984928.jpg?v=1761730513"},{"product_id":"ronstan-series-55-orbit-block-auto-ratchet-with-cam-cleat","title":"Ronstan Series 55 Orbit Block Auto-Ratchet with Cam Cleat","description":"\u003cp\u003e\u003cstrong\u003eRonstan Series 55 Orbit Block Auto-Ratchet with Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic ratchet block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.\u003c\/p\u003e\n\u003cp\u003eSelected Series 55 models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAwesome ratchet block holding power\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQuite simply, Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated CNC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 20:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompositite C-Cleat and adustable cleat arm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSeries 55 Ratchet Orbit Blocks are fitted with our carbon reinforced C-Cleat for secure rope holding with low entry and exit efforts, and fairlead for fast action from any angle. Cleat arms are made from the same toughened, glass fibre reinforced nylon and are adjustable for setting to your preferred cleating angle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePin Ø (in): 3\/16\u003c\/li\u003e\n\u003cli\u003eMax. Rope diameter (in): 3\/8\u003c\/li\u003e\n\u003cli\u003eSheave diameter (in): 2 5\/32\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSheave: Anodised Aluminium\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003c\/li\u003e\n\u003cli\u003eFrame \/ Cheeks \/ Cleat Arms: Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head fitting: Grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan Sailboat Hardware","offers":[{"title":"Default Title","offer_id":53594472284532,"sku":"RONRF56120","price":172.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/RONRF56120-2__62991.jpg.1428984928.jpg?v=1761730517"},{"product_id":"ronstan-series-55-orbit-block-ratchet-with-becket-and-cam-cleat","title":"Ronstan Series 55 Orbit Block Ratchet with Becket and Cam Cleat","description":"\u003cp\u003e\u003cstrong\u003eRonstan Series 55 Orbit Block Ratchet with Becket and Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic ratchet block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes*. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.\u003c\/p\u003e\n\u003cp\u003eSelected Series 55 models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAwesome ratchet block holding power\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQuite simply, Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated CNC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 20:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompositite C-Cleat and adustable cleat arm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSeries 55 Ratchet Orbit Blocks are fitted with our carbon reinforced C-Cleat for secure rope holding with low entry and exit efforts, and fairlead for fast action from any angle. Cleat arms are made from the same toughened, glass fibre reinforced nylon and are adjustable for setting to your preferred cleating angle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eAutomatic ratchet block\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePin Ø (in): 3\/16\u003c\/li\u003e\n\u003cli\u003eMax. Rope diameter (in): 3\/8\u003c\/li\u003e\n\u003cli\u003eSheave diameter (in): 2 5\/32\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSheave: Anodised Aluminium\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003c\/li\u003e\n\u003cli\u003eFrame \/ Cheeks \/ Cleat Arms: Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head fitting: Grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan Sailboat Hardware","offers":[{"title":"Default Title","offer_id":53594473103732,"sku":"RONRF56130","price":177.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/RONRF56130-2__98023.jpg.1428984928.jpg?v=1761730518"},{"product_id":"ronstan-series-55-orbit-block-clockwise-ratchet-cheek","title":"Ronstan Series 55 Orbit Block Clockwise Ratchet Cheek","description":"\u003cp\u003e\u003cstrong\u003eRonstan Series 55 Orbit Block Clockwise Ratchet Cheek\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic ratchet block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes*. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.\u003c\/p\u003e\n\u003cp\u003eSelected Series 55 models\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAwesome ratchet block holding power\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQuite simply, Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated CNC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 20:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eAutomatic \u0026amp; manual ratchet block\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cli\u003eMax. Rope diameter (in): 3\/8\u003c\/li\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSheave: Anodised Aluminium\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan Sailboat Hardware","offers":[{"title":"Default Title","offer_id":53594474021236,"sku":"RONRF56151","price":86.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/RONRF56151-2__85949.jpg.1428984928.jpg?v=1761730522"},{"product_id":"ronstan-series-55-orbit-block-anti-clockwise-ratchet-cheek","title":"Ronstan Series 55 Orbit Block Anti-Clockwise Ratchet Cheek","description":"\u003cp\u003e\u003cstrong\u003eRonstan Series 55 Orbit Block Anti-Clockwise Ratchet Cheek\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic ratchet block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes*. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.\u003c\/p\u003e\n\u003cp\u003eSelected Series 55 models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAwesome ratchet block holding power\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQuite simply, Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated CNC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 20:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eAutomatic \u0026amp; manual ratchet block\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMax. Rope diameter (in): 3\/8\u003c\/li\u003e\n\u003cli\u003eSheave diameter (in): 2 5\/32\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSheave: Anodised Aluminium\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan Sailboat Hardware","offers":[{"title":"Default Title","offer_id":53594474905972,"sku":"RONRF56151A","price":86.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/RONRF56151A-2__30155.jpg.1428984928.jpg?v=1761730523"},{"product_id":"ronstan-series-55-rt-orbit-block-triple-becket-cleat-swivel","title":"Ronstan Series 55 RT Orbit Block,Triple Becket Cleat Swivel","description":"\u003c!--TABS SUP--\u003e\u003cdiv class=\"Techparagraph\"\u003e\n\u003cstrong\u003eManufacturer part #:\u003c\/strong\u003e RF56330B 1\u003cbr\u003e\u003cbr\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"cabDes\"\u003eTechnical Description\u003c\/div\u003e\n\u003cdiv class=\"col-4 menu units\"\u003eFeatures\u003c\/div\u003e\n\u003cdiv class=\"col-4 menu units\"\u003eAmerican\u003c\/div\u003e\n\u003cdiv class=\"col-4 menu units\"\u003eMetric\u003c\/div\u003e\n\u003cdiv class=\"col-4 col-12M menu\"\u003eDescription\u003c\/div\u003e\n\u003cdiv class=\"cell col-8 col-12M\"\u003eSeries 55 RT Orbit Triple Becket Cleat Swivel Block\u003c\/div\u003e\n\u003cdiv class=\"col-4 col-12M menu\"\u003eSheave Ø\u003c\/div\u003e\n\u003cdiv class=\"cell col-4 col-6M\"\u003e2 5\/32 in\u003c\/div\u003e\n\u003cdiv class=\"cell col-4 col-6M\"\u003e55 mm\u003c\/div\u003e\n\u003cdiv class=\"col-4 col-12M menu\"\u003eMaximum Rope Ø\u003c\/div\u003e\n\u003cdiv class=\"cell col-4 col-6M\"\u003e3\/8 in\u003c\/div\u003e\n\u003cdiv class=\"cell col-4 col-6M\"\u003e10 mm\u003c\/div\u003e\n\u003cdiv class=\"col-4 col-12M menu\"\u003eMaximum Working Load\u003c\/div\u003e\n\u003cdiv class=\"cell col-4 col-6M\"\u003e1650 lb\u003c\/div\u003e\n\u003cdiv class=\"cell col-4 col-6M\"\u003e750 kg\u003c\/div\u003e\n\u003cdiv class=\"col-4 col-12M menu\"\u003eBreaking Load\u003c\/div\u003e\n\u003cdiv class=\"cell col-4 col-6M\"\u003e3300 lb\u003c\/div\u003e\n\u003cdiv class=\"cell col-4 col-6M\"\u003e1500 kg\u003c\/div\u003e\n\u003cdiv class=\"col-4 col-12M menu\"\u003eWeight\u003c\/div\u003e\n\u003cdiv class=\"cell col-4 col-6M\"\u003e13.8 oz\u003c\/div\u003e\n\u003cdiv class=\"cell col-4 col-6M\"\u003e392 g\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!--TABS --\u003e\u003cdiv class=\"Techparagraph\"\u003e\n\u003cstrong\u003eManufacturer part #:\u003c\/strong\u003e RF56330B\u003cbr\u003e\u003cbr\u003e\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlimited block rotation\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points\u003c\/li\u003e\n\u003cli\u003eUltra low profile integrated beckets\u003c\/li\u003e\n\u003cstrong\u003eAutomatic ratchet block\u003c\/strong\u003e\u003cbr\u003e Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes (Selected Series 55 models). In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAwesome ratchet block holding power\u003c\/strong\u003e\u003cbr\u003e Quite simply, Ronstan Ratchet Orbit Blocks„¢ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 21:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. \u003cbr\u003e\u003cbr\u003e\u003cspan class=\"subtitles_red\"\u003eMaterials\u003c\/span\u003e\u003cbr\u003e\u003cli\u003eSheave: Hard anodised Aluminium\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Aceetal\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilised, multi-strand impregnated SK75 Dyneema°\u003c\/li\u003e\n\u003c\/div\u003e\n\u003c!-- FIN SCRIP PANLS--\u003e\n\u003c\/div\u003e","brand":"Ronstan Sailboat Hardware","offers":[{"title":"Default Title","offer_id":53594475200884,"sku":"RONRF56330B","price":281.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/RONRF56330B-2__88440.jpg.1428984928.jpg?v=1761730520"},{"product_id":"ronstan-series-55-orbit-block-ratchet-with-fiddle-and-becket","title":"Ronstan Series 55 Orbit Block Ratchet with Fiddle and Becket","description":"\u003cp\u003e\u003cstrong\u003eRonstan Series 55 Orbit Block Ratchet with Fiddle and Becket\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic ratchet block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes*. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.\u003c\/p\u003e\n\u003cp\u003eSelected Series 55 models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAwesome ratchet block holding power\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQuite simply, Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated CNC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 20:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eUltra-low profile integrated hollow hub becket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePin Ø (in): 3\/16\u003c\/li\u003e\n\u003cli\u003eSheave diameter (in): 2 5\/32 + 1 3\/8\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRatchet Sheave: Anodised Aluminium\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003c\/li\u003e\n\u003cli\u003eFrame \/ Cheeks \/ Cleat Arms: Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head fitting: Grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Ronstan Sailboat Hardware","offers":[{"title":"Default Title","offer_id":53594476020084,"sku":"RONRF56510","price":99.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/RONRF56510-2__27571.jpg.1428984928.jpg?v=1761730519"},{"product_id":"ronstan-series-55-orbit-block-ratchet-with-fiddle-becket-and-cam-cleat","title":"Ronstan Series 55 Orbit Block Ratchet with Fiddle Becket and Cam Cleat","description":"\u003cp\u003e\u003cstrong\u003eRonstan Series 55 Orbit Block Ratchet with Fiddle Becket and Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic ratchet block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.\u003c\/p\u003e\n\u003cp\u003eSelected Series 55 models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAwesome ratchet block holding power\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQuite simply, Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated CNC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 20:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompositite C-Cleat and adustable cleat arm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSeries 55 Ratchet Orbit Blocks are fitted with our carbon reinforced C-Cleat for secure rope holding with low entry and exit efforts, and fairlead for fast action from any angle. Cleat arms are made from the same toughened, glass fibre reinforced nylon and are adjustable for setting to your preferred cleating angle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eUltra-low profile integrated hollow hub becket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePin Ø (in): 3\/16\u003c\/li\u003e\n\u003cli\u003eMax. Rope diameter (in): 3\/8\u003c\/li\u003e\n\u003cli\u003eSheave diameter (in): 2 5\/32 + 1 3\/8\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRatchet Sheave: Anodised Aluminium.\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal.\u003c\/li\u003e\n\u003cli\u003eFrame \/ Cheeks \/ Cleat Arms: Toughened, glass fibre reinforced Nylon.\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head fitting: Grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan Sailboat Hardware","offers":[{"title":"Default Title","offer_id":53594476904820,"sku":"RONRF56530","price":190.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/RONRF56530-2__76510.jpg.1428984928.jpg?v=1761730522"}],"url":"https:\/\/velasailingsupply.com\/collections\/series-55-orbit-ratchet-blocks.oembed","provider":"Vela Sailing Supply","version":"1.0","type":"link"}