{"title":"Ronstan Orbit Series 55 Ratchet Blocks","description":"\u003cb\u003eThe world’s best ratchet block is now even better. It has all the holding power of its predecessor, but with superior rope wear performance. It’s lighter, and it’s the only ratchet block with both manual and full automatic modes.\u003cbr\u003e\u003cbr\u003eControl switches on both sides of the block remain accessible whether fitted on port or starboard side, and the NC-machined alloy sheave and simple mechanism ensures superb reliability and durability.\u003cbr\u003e\u003cbr\u003eIt is essential equipment on racing dinghies and sports boats, and when you want the ultimate holding power.\u003c\/b\u003e","products":[{"product_id":"or55qubeblws","title":"Ronstan Orbit 55 Quad Becket Block w\/ Swivel Head","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Orbit 55 Quad Becket Block w\/ Swivel Head\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eUltra Lightweight\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow friction 2-stage Orbital ball bearing system\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlimited block rotation.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUltra low profile integrated beckets.\u003cbr\u003e\u003cbr\u003eSheave - 2 5\/32 in.\u003cbr\u003e\u003cbr\u003eMax. Rope - 3\/8 in.\u003cbr\u003e\u003cbr\u003eMax. Cable - in\u003cbr\u003e\u003cbr\u003ePin - in.\u003cbr\u003e\u003cbr\u003eM.W.L. - 1650 lb.\u003cbr\u003e\u003cbr\u003eB. L. - 3300 lb.\u003cbr\u003e\u003cbr\u003eWeight - 11.2 oz.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduct Information\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLightweight\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eKilogram for kilogram of working load, BB and RT Orbit Blocks are the world's lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of the inactive return race and hub.\u003cbr\u003e\u003cbr\u003eWeight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible.\u003cbr\u003e\u003cbr\u003eMulti-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHighest working load in its class\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eThe orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximizes load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range.\u003cbr\u003e\u003cbr\u003eThe floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized. The DyneemaA Link is produced from FSE Robline SK75 fiber, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point.\u003cbr\u003e\u003cbr\u003eHolding power 20:1\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMainsheet systems on dinghies, sportsboats and small keelboats to 9m (30ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on dinghies, sportsboats and small keel boats to 9m (30ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, Vang and Backstay application on boats to 8m (26ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies, catamarans, sportsboats and small keel boats to 9m (30ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRF55410 when paired with a RF56330B and a RF35101 lashed to the becket produces a powerful 8:1 mainsheet system for use on catamarans to 5.5m\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e(18ft). This can be increased to 9:1 by replacing the RF35101 with a RF35202\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 8m (26ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall bearings - High compression strength carbon black Acetal\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStage 2 bearing - Carbon fiber reinforced, PTFE impregnated Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks - Toughened, glass fiber reinforced Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilized, multi-strand impregnated SK75 DyneemaA\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHead fitting: grade 316 stainless steel\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: high compression strength carbon black Acetal\u003c\/li\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547064180782,"sku":"RF55410","price":167.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF55410_08b9210e-c91e-4eae-bd03-1a930af98a27.jpg?v=1677688198"},{"product_id":"orse55anrach","title":"Ronstan Orbit Series 55 Anti-Clockwise Ratchet Cheek Block","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Orbit Series 55 Anti-Clockwise Ratchet Cheek Block\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eAutomatic and Manual ratchet in one block\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUp to 20:1 holding power\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEasily fitted and securely retained Dyneema® Link head\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\u003cbr\u003eSheave Ø - 2 5\/32 in.\u003cbr\u003e\u003cbr\u003eMax. Rope Ø - 3\/8 in.\u003cbr\u003e\u003cbr\u003eMax. Wire Ø - in.\u003cbr\u003e\u003cbr\u003ePin Ø - in.\u003cbr\u003e\u003cbr\u003eMax. Working Load - 550 lb\u003cbr\u003e\u003cbr\u003eB. L. - 1540 lb\u003cbr\u003e\u003cbr\u003eWeight - 2.7 oz\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduct Information\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAutomatic ratchet block\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelected Series 55 models.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAwesome ratchet block holding power\u003c\/b\u003e\u003cbr\u003e\u003cbr\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 21:1, almost double that of our nearest competitor. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designs 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 minimize 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\u003cb\u003eSimple and secure attachment\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eThe Dyneema® Link is easily fitted and is retained securely by a molded 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 as soon as the ratchet mechanism disengages. In manual mode, the sheave cross-hole geometry eliminates the 'shuddering' run-out that you can expect from traditional v-groove ratchet blocks.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDinghy mainsheet systems\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on dinghies\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSheave: Hard anodized Aluminum\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547066900526,"sku":"RF56151A","price":70.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF56151A_121a895b-3db1-4438-9270-cab5cd0d85cb.jpg?v=1677688270"},{"product_id":"orse55clrach","title":"Ronstan Orbit Series 55 Clockwise Ratchet Cheek Block","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Orbit Series 55 Clockwise Ratchet Cheek Block\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eAutomatic and Manual ratchet in one block\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUp to 20:1 holding power\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEasily fitted and securely retained Dyneema® Link head\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\u003cbr\u003eSheave Ø - 2 5\/32 in.\u003cbr\u003e\u003cbr\u003eMax. Rope Ø - 3\/8 in.\u003cbr\u003e\u003cbr\u003eMax. Wire Ø - in.\u003cbr\u003e\u003cbr\u003ePin Ø - in.\u003cbr\u003e\u003cbr\u003eMax. Working Load - 550 lb\u003cbr\u003e\u003cbr\u003eB. L. - 1540 lb\u003cbr\u003e\u003cbr\u003eWeight - 2.7 oz\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduct Information\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAutomatic ratchet block\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelected Series 55 models.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAwesome ratchet block holding power\u003c\/b\u003e\u003cbr\u003e\u003cbr\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 21:1, almost double that of our nearest competitor. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designs 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 minimize 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\u003cb\u003eSimple and secure attachment\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eThe Dyneema® Link is easily fitted and is retained securely by a molded 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 as soon as the ratchet mechanism disengages. In manual mode, the sheave cross-hole geometry eliminates the 'shuddering' run-out that you can expect from traditional v-groove ratchet blocks.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDinghy mainsheet systems\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on dinghies\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSheave: Hard anodized Aluminum\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547066966062,"sku":"RF56151","price":70.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF56151_5b4cb0a5-04e0-40b4-885a-34414f63b3eb.jpg?v=1677688274"},{"product_id":"orse55dobebl1","title":"Ronstan Orbit Series 55 Double Becket Block w\/ Swivel Head","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eOrbit Series 55 Double Becket Block w\/ Swivel Head\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eUltra Lightweight\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow friction 2-stage Orbital ball bearing system\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlimited block rotation.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUltra low profile integrated beckets.\u003cbr\u003e\u003cbr\u003eSheave - 2 5\/32 in.\u003cbr\u003e\u003cbr\u003eMax. Rope - 3\/8 in.\u003cbr\u003e\u003cbr\u003eMax. Cable - in\u003cbr\u003e\u003cbr\u003ePin - in.\u003cbr\u003e\u003cbr\u003eM.W.L. - 1650 lb.\u003cbr\u003e\u003cbr\u003eB. L. - 3300 lb.\u003cbr\u003e\u003cbr\u003eWeight - 6.1 oz.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduct Information\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLightweight\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eKilogram for kilogram of working load, BB and RT Orbit Blocksa are the worlda's lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of the inactive return race and hub.\u003cbr\u003e\u003cbr\u003eWeight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible.\u003cbr\u003e\u003cbr\u003eMulti-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHighest working load in its class\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eThe orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximizes load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range.\u003cbr\u003e\u003cbr\u003eThe floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized. The Dyneema Link is produced from FSE Robline SK75 fiber, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point.\u003cbr\u003e\u003cbr\u003eHolding power 20:1\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMainsheet systems on dinghies, sportsboats and small keelboats to 9m (30ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on dinghies, sportsboats and small keel boats to 9m (30ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, Vang and Backstay application on boats to 8m (26ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies, catamarans, sportsboats and small keel boats to 9m (30ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 8m (26ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall bearings - High compression strength carbon black Acetal\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStage 2 bearing - Carbon fibre reinforced, PTFE impregnated Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks - Toughened, glass fibre reinforced Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilised, multi-strand impregmented SK75 Dyneema\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHead fitting: grade 316 stainless steel\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: high compression strength carbon black Acetal\u003c\/li\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547067031598,"sku":"RF55210","price":87.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF55210_2000x_91b9285f-e041-4c19-8598-ab00b8a703c8.jpg?v=1677688276"},{"product_id":"orse55sirabl2","title":"Ronstan Orbit Series 55 Single Ratchet Block, w\/Swivel Head","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Orbit Series 55 Single Ratchet Block, w\/Swivel Head\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eAutomatic and Manual ratchet in one block\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUp to 20:1 holding power\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlimited block rotation.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMeasurements\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eSheave Ø - 55 mm\u003cbr\u003e\u003cbr\u003eMax. Rope Ø - 10 mm\u003cbr\u003e\u003cbr\u003eMax. Cable Ø - mm\u003cbr\u003e\u003cbr\u003ePin Ø - mm\u003cbr\u003e\u003cbr\u003eM.W.L. - 250 kg\u003cbr\u003e\u003cbr\u003eB. L. - 650 kg\u003cbr\u003e\u003cbr\u003eWeight - 82 g\u003c\/li\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547067129902,"sku":"RF56100","price":76.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF56100_c18aba73-4b27-4909-8f59-5fa57c9a6acc.jpg?v=1677688278"},{"product_id":"orse55trbebl1","title":"Ronstan Orbit Series 55 Triple Becket Block w\/ Swivel Head","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eOrbit Series 55 Triple Becket Block w\/ Swivel Head\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eUltra Lightweight\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow friction 2-stage Orbital ball bearing system\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlimited block rotation.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUltra low profile integrated beckets.\u003cbr\u003e\u003cbr\u003eSheave A - 2 5\/32 in.\u003cbr\u003e\u003cbr\u003eMax. Rope A - 3\/8 in.\u003cbr\u003e\u003cbr\u003eMax. Cable A - in\u003cbr\u003e\u003cbr\u003ePin A - in.\u003cbr\u003e\u003cbr\u003eM.W.L. - 1650 lb.\u003cbr\u003e\u003cbr\u003eWeight - oz.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduct Information\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLightweight\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eKilogram for kilogram of working load, BB and RT Orbit Blocksa are the worldaes lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of the inactive return race and hub.\u003cbr\u003e\u003cbr\u003eWeight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible.\u003cbr\u003e\u003cbr\u003eMulti-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHighest working load in its class\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eThe orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximizes load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range.\u003cbr\u003e\u003cbr\u003eThe floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized. The Dyneema Link is produced from FSE Robline SK75 fiber, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point.\u003cbr\u003e\u003cbr\u003eHolding power 20:1\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMainsheet systems on dinghies, sportsboats and small keelboats to 9m (30ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on dinghies, sportsboats and small keel boats to 9m (30ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, Vang and Backstay application on boats to 8m (26ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies, catamarans, sportsboats and small keel boats to 9m (30ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 8m (26ft)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall bearings - High compression strength carbon black Acetal\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStage 2 bearing - Carbon fiber reinforced, PTFE impregnated Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks - Toughened, glass fiber reinforced Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilized, multi-strand impregnated SK75 Dyneema\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHead fitting: grade 316 stainless steel\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: high compression strength carbon black Acetal\u003c\/li\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547067195438,"sku":"RF55310","price":111.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF55310_2000x_a6eb7814-4df3-4151-870b-88d5f912b9aa.jpg?v=1677688280"},{"product_id":"roorse55dyli1","title":"Ronstan Orbit Series 55 Dyneema Link","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Orbit Series 55 Dyneema Link\u003cbr\u003e\u003cbr\u003eDyneema® link, S40 BB double \u0026amp; triple Orbit Blocks™, S55 BB \u0026amp; RT single \u0026amp; fiddle Orbit Blocks™\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eMade from highest quality SK75 Dyneema® fiber - 10 times stronger and lighter than steel\u003cbr\u003e\u003cbr\u003eIndividual threads impregnated for U.V. and abrasion resistance - longer life\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eSuits RF45201, RF45211, RF45301, RF45311, RF55101,RF55111, RF55501, RF55511,RF55521, RF55531, RF56101, RF56111, RF56121, RF56131.\u003cbr\u003e\u003cbr\u003ePin Ø - in.\u003cbr\u003e\u003cbr\u003eMax. Working Load - lb\u003cbr\u003e\u003cbr\u003eB. L. - lb\u003cbr\u003e\u003cbr\u003eWeight - oz\u003cbr\u003e\u003cbr\u003e\u003cb\u003eNote\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e- For best results, the Dyneema® link must be attached to a mounting point with a smooth, well rounded profile.\u003cbr\u003e\u003cbr\u003eAvoid attaching directly to fittings with sharp edges or rough surfaces that may damage the Dyneema® link through abrasion of point loading. For this situation use a shackle with a smooth surface between the link and the fitting.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/div\u003e\n\u003cbr\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547152326702,"sku":"RF9004-08","price":11.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/yhst-140735411364524_2618_552417001_57598781-a303-41aa-b3e3-406ba8212755.jpg?v=1677689470"},{"product_id":"roorse55sibe","title":"Ronstan Orbit Series 55 Single Becket Block w\/ Swivel Head \u0026 Cleat","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Orbit Series 55 Single Becket Block w\/ Swivel Head \u0026amp; Cleat\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eAutomatic and Manual ratchet in one block\u003cbr\u003e\u003cbr\u003e\u003cl\u003eUp to 20:1 holding power\u003cbr\u003e\u003cbr\u003e\u003c\/l\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\u003cbr\u003eSheave Ø - 2 5\/32 in. (55mm)\u003cbr\u003e\u003cbr\u003eMax. Rope Ø - 3\/8 in. (10mm)\u003cbr\u003e\u003cbr\u003eMax. Cable Ø - in (mm)\u003cbr\u003e\u003cbr\u003ePin Ø - in. (mm)\u003cbr\u003e\u003cbr\u003eM.W.L. - 550 lb. (250 kg)\u003cbr\u003e\u003cbr\u003eB. L. - 1650 lb. (750 kg)\u003cbr\u003e\u003cbr\u003eWeight - 7.4 oz. (209 g)\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduct Information\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAutomatic ratchet block\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelected Series 55 models.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAwesome ratchet block holding power\u003c\/b\u003e\u003cbr\u003e\u003cbr\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 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\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSheave: Hard anodized Aluminum\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fibre reinforced Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilised, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547153244206,"sku":"RF56130","price":144.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF56130_9b17b1b1-7c00-4751-a61a-a74abb0c2ddd.jpg?v=1677689483"},{"product_id":"roorse55sifi","title":"Ronstan Orbit Series 55 Single Fiddle Block w\/ Becket \u0026 Swivel Head","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Orbit Series 55 Single Fiddle Block w\/ Becket \u0026amp; Swivel Head\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eAutomatic and Manual ratchet in one block\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUp to 20:1 holding power\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\u003cbr\u003eSheave Ø - 2 5\/32 + 1 3\/8 in. (55 + 35mm)\u003cbr\u003e\u003cbr\u003eMax. Rope Ø - 10 in. (3\/8mm)\u003cbr\u003e\u003cbr\u003eMax. Cable Ø - in (mm)\u003cbr\u003e\u003cbr\u003ePin Ø - in. (mm)\u003cbr\u003e\u003cbr\u003eM.W.L. - 550 lb. (250 kg)\u003cbr\u003e\u003cbr\u003eB. L. - 1650 lb. (750 kg)\u003cbr\u003e\u003cbr\u003eWeight - 3.9 oz. (112 g)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFiddle sheave has a high load full contact bearing (ie. not ball bearing). Main sheave has two-stage, ball bearing\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduct Information\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAutomatic ratchet block\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelected Series 55 models.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAwesome ratchet block holding power\u003c\/b\u003e\u003cbr\u003e\u003cbr\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 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\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSheave: Hard anodized Aluminum\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fibre reinforced Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilised, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547153408046,"sku":"RF56510","price":81.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF56510_1386cd80-e146-4db6-a6ef-da61f83cdce7.jpg?v=1677689485"},{"product_id":"roorse55sifi1","title":"Ronstan Orbit Series 55 Single Fiddle Block w\/ Becket, Swivel Head \u0026 Cam Cleat","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Orbit Series 55 Single Fiddle Block w\/ Becket, Swivel Head \u0026amp; Cam Cleat\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eAutomatic and Manual ratchet in one block\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUp to 20:1 holding power\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\u003cbr\u003eSheave Ø - 2 5\/32 + 1 3\/8 in. ((55 + 35mm)\u003cbr\u003e\u003cbr\u003eMax. Rope Ø - 3\/8 in. (10mm)\u003cbr\u003e\u003cbr\u003eMax. Cable Ø - in. (mm)\u003cbr\u003e\u003cbr\u003ePin Ø - in. (mm)\u003cbr\u003e\u003cbr\u003eM.W.L. - 550 lb. (250 kg)\u003cbr\u003e\u003cbr\u003eB. L. - 1650 lb. (750 kg)\u003cbr\u003e\u003cbr\u003eWeight - 8.3 oz. (235 g)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFiddle sheave has a high load full contact bearing (ie. not ball bearing). Main sheave has two-stage, ball bearing.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduct Information\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAutomatic ratchet block\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelected Series 55 models.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAwesome ratchet block holding power\u003c\/b\u003e\u003cbr\u003e\u003cbr\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 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\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSheave: Hard anodized Aluminum\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547153604654,"sku":"RF56530","price":152.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF56530_886265cf-679b-441c-a192-6e211060b8e1.jpg?v=1677689488"},{"product_id":"roorse55sira","title":"Ronstan Orbit Series 55 Single Ratchet Block w\/ Becket \u0026 Swivel Head","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Orbit Series 55 Single Ratchet Block w\/ Becket \u0026amp; Swivel Head\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eAutomatic and Manual ratchet in one block\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUp to 20:1 holding power\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\u003cbr\u003eSheave Ø - 2 5\/32 in. (55mm)\u003cbr\u003e\u003cbr\u003eMax. Rope Ø - 3\/8 in. (10mm)\u003cbr\u003e\u003cbr\u003eMax. Cable Ø - in (mm)\u003cbr\u003e\u003cbr\u003ePin Ø - in. (mm)\u003cbr\u003e\u003cbr\u003eM.W.L. - 550 lb. (250 kg)\u003cbr\u003e\u003cbr\u003eB. L. - 1650 lb. (750 kg)\u003cbr\u003e\u003cbr\u003eWeight - 3 oz. (86 g)\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduct Information\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAutomatic ratchet block\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelected Series 55 models.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAwesome ratchet block holding power\u003c\/b\u003e\u003cbr\u003e\u003cbr\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 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\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSheave: Hard anodized Aluminum\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Aceetal\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fibre reinforced Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilised, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547153637422,"sku":"RF56110","price":74.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF56110_6a0b8d88-69b5-49cf-b73f-a7e80173d13b.jpg?v=1677689490"},{"product_id":"roorse55sisw","title":"Ronstan Orbit Series 55 Single Swivel Head Block w\/ Cleat","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Orbit Series 55 Single Swivel Head Block w\/ Cleat\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eAutomatic and Manual ratchet in one block\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUp to 20:1 holding power\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003cbr\u003e\u003cbr\u003eSheave Ø - 2 5\/32\" + 1 3\/8\" (55 + 35 mm)\u003cbr\u003e\u003cbr\u003eMax. Rope Ø - 3\/8\" (10 mm)\u003cbr\u003e\u003cbr\u003eMax. Cable Ø - in. (mm)\u003cbr\u003e\u003cbr\u003ePin Ø - in. (mm)\u003cbr\u003e\u003cbr\u003eM.W.L. - 1100 lb. (500 kg)\u003cbr\u003e\u003cbr\u003eB. L. - 2200 lb. (1000 kg)\u003cbr\u003e\u003cbr\u003eWeight - 7.2 oz (204 g)\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduct Information\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAutomatic ratchet block\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelected Series 55 models.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAwesome ratchet block holding power\u003c\/b\u003e\u003cbr\u003e\u003cbr\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 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\n\u003c\/li\u003e\n\u003cli\u003eMaterials\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSheave: Hard anodized Aluminum\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fibre reinforced Nylon\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilised, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547153670190,"sku":"RF56120","price":137.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF56120_919cf9f2-0f44-4468-bf3e-a1be483fce88.jpg?v=1677689493"},{"product_id":"rose55reclfo","title":"Ronstan Series 55 Retainer Clip for Double \u0026 Triple Blocks","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Series 55 Retainer Clip for Double \u0026amp; Triple Blocks\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eSuits: RF55201, RF55211, RF56331\u003cbr\u003e\u003cbr\u003ePin Ø - in.\u003cbr\u003e\u003cbr\u003eM.W.L. - lb.\u003cbr\u003e\u003cbr\u003eB. L. - lb.\u003cbr\u003e\u003cbr\u003eWeight - oz.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBlack Nylon\u003c\/li\u003e\n\u003c\/div\u003e\n\u003cbr\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547197120558,"sku":"RF50002","price":9.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/yhst-140735411364524_2618_438280211_6ec240fd-77e1-4c74-b266-3c2144ce05e7.jpg?v=1677690579"},{"product_id":"rose55reclfo2","title":"Ronstan Series 55 Retainer Clip for Triple Orbit Blocks","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Series 55 Retainer Clip for Triple Orbit Blocks\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eSuits RF55301, RF55311\u003cbr\u003e\u003cbr\u003ePin Ø - in.\u003cbr\u003e\u003cbr\u003eM.W.L. - lb.\u003cbr\u003e\u003cbr\u003eB. L. - lb.\u003cbr\u003e\u003cbr\u003eWeight - oz.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBlack Nylon\u003c\/li\u003e\n\u003c\/div\u003e\n\u003cbr\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547197251630,"sku":"RF50003","price":8.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/yhst-140735411364524_2618_438280211_6c63eec7-53fa-4be8-92f8-5c2717e5cdd6.jpg?v=1677690580"},{"product_id":"rose70dyli","title":"Ronstan Series 55 \u0026 70 Dyneema Link","description":"\u003ch2 id=\"itempage-captiontitle\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv\u003eRonstan Series 55 \u0026amp; 70 Dyneema Link\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eSuits RF55201, RF55211, RF55301, RF55311, RF56331\u003cbr\u003e\u003cbr\u003ePin Ø - in.\u003cbr\u003e\u003cbr\u003eM.W.L. - lb.\u003cbr\u003e\u003cbr\u003eB. L. - lb.\u003cbr\u003e\u003cbr\u003eWeight - oz.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/div\u003e\n\u003cbr\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":17547200888878,"sku":"RF9005-10","price":11.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/yhst-140735411364524_2618_552653216_8af8b6b2-e52c-4259-a86b-90dc5f1c8e93.jpg?v=1677690685"},{"product_id":"ronstan-retainer-clip-s55-bb-rt-orbit-singles-fiddles-2-pack","title":"Ronstan Retainer Clip, S55 BB\u0026RT Orbit Singles Fiddles, 2-pack","description":"\u003ch2 id=\"itempage-captiontitle\" data-mce-fragment=\"1\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eRonstan Retainer Clip, S55 BB\u0026amp;RT Orbit Singles Fiddles, 2-pack\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003cb data-mce-fragment=\"1\"\u003e \u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eFeatures\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul class=\"product-feature-list bullet-list\" data-mce-fragment=\"1\"\u003e\n\u003cli\u003eSuits RF55101, RF55111, RF55501,RF55511, RF55521, RF55531, RF56101, RF56111, RF56121, RF56131\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eMaterials\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli\u003eBlack Nylon\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":39365296193686,"sku":"RF50001","price":3.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF50001_095882cb-4b64-439e-8a1e-ce24324b20dc.jpg?v=1677687860"},{"product_id":"ronstan-stand-up-base-s55-bb-rt-orbit-blocks","title":"Ronstan Stand-up Base, S55 BB \u0026 RT Orbit Blocks","description":"\u003ch2 id=\"itempage-captiontitle\" data-mce-fragment=\"1\"\u003e Product Description\u003c\/h2\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eRonstan Stand-up Base, S55 BB \u0026amp; RT Orbit Blocks\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cb data-mce-fragment=\"1\"\u003eProduct Information\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cb data-mce-fragment=\"1\"\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp minmax_bound=\"true\"\u003e\u003cb minmax_bound=\"true\"\u003eLow profile stand-up kit allows 0° or 90° alignment\u003c\/b\u003e\u003c\/p\u003e\n\u003cp minmax_bound=\"true\"\u003eThe RF2455 stand-up kit features a clatter-free rubber boot. You can attach the  Dyneema\u003csup minmax_bound=\"true\"\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003elink so that the block is aligned with the stand-up base or across it. It’s a neat, low-profile solution which allows full articulation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cb data-mce-fragment=\"1\"\u003eSpecifications\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003ePin Ø - -in.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eM.W.L. - 1100 lb.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eB. L. - 2200 lb.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWeight - 0.9 oz.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":39365302583446,"sku":"RF2455","price":15.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/products\/RF2455.jpg?v=1668792695"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2785\/3654\/collections\/95.gif?v=1568117744","url":"https:\/\/atlanticriggingsupply.com\/collections\/ronstan-orbit-series-55-ratchet-blocks.oembed?page=2","provider":"SB Suppliers","version":"1.0","type":"link"}