{"title":"Flip Flop Blocks","description":"\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003eFlip flop blocks are designed to pivot around a central fixing point, this keeps the rope close to the deck, mast or boom whilst still allowing the block to articulate to the correct lead angle, ensuring friction stays as low as possible whilst still guiding the rope to where it needs to go. We offer a range of 20, 30 and 40mm sheave sizes and with or without cam cleats.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"20mm-flip-flop-block","title":"20mm Dynamic Flip Flop Block","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003e20mm Dynamic Flip Flop Block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFlip Flop Blocks are designed to pivot around a central fixing point, keeping the rope close to the deck, mast or boom while still allowing the block to articulate to the correct lead angle. This helps minimise friction while guiding the rope efficiently.\u003c\/p\u003e\n\u003cp\u003eManufactured from laser-cut stainless steel, the body and backing plate are produced to precise tolerances, ensuring consistent quality, maximum strength and a compact design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamic Bearing Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 20mm sheave features Allen's Dynamic Bearing technology, using twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides superior load-carrying capability and longevity compared to bearing systems that run on plastic rails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemovable Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA clevis pin connects the main Flip Flop body to the backing plate and serves as the pivot point. Removing the pin separates the body from the backing plate, allowing easier installation and enabling the body to be fitted either way up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003c\/li\u003e\n\u003cli\u003eKeelboat control lines\u003c\/li\u003e\n\u003cli\u003ePump-action spinnaker systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Drawing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClick the PDF above to view the full detailed dimensions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196764332407,"sku":"A2123","price":41.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2123.jpg?v=1781800515"},{"product_id":"20mm-flip-flop-block-with-a-677-cam-cleat","title":"20mm Dynamic Flip Flop Block - Allenite Cam Cleat","description":"\u003cp\u003e\u003cstrong\u003e20mm Dynamic Flip Flop Block - Allenite Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003eFlip Flop Blocks are designed to pivot around a central fixing point, keeping the rope close to the deck, mast or boom while still allowing the block to articulate to the correct lead angle. This helps minimise friction while guiding the rope efficiently.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelocatable Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFeatures two mounting positions for the Dynamic Bearing sheave. Simply remove the clevis pin holding the sheave in place and relocate it to either fixing hole in the main body. This provides greater installation flexibility across a wider range of applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamic Bearing Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe sheave features Allen's Dynamic Bearing technology, using twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides superior load-carrying capability and longevity compared to bearing systems that run on plastic rails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemovable Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA clevis pin connects the main Flip Flop body to the backing plate and serves as the pivot point. Removing the pin separates the body from the backing plate, allowing easier installation and enabling the body to be fitted either way up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAllenite Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFitted with the A.677 small Allenite cam cleat. Allenite is a material developed by Allen to provide low weight and excellent heat dissipation, increasing wear resistance compared to standard acetals. The Allenite cam cleat also offers a significant weight saving over the aluminium version.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for lower-load applications such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHalyards\u003c\/li\u003e\n\u003cli\u003ePole launchers\u003c\/li\u003e\n\u003cli\u003eJib sheets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor higher-load applications, we recommend using the A2123-77.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Drawing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClick the PDF above to view the full detailed dimensions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196764430711,"sku":"A2123-677","price":61.86,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2133-677.jpg?v=1781800517"},{"product_id":"20mm-flip-flop-block-with-a-77-cam-cleat","title":"20mm Dynamic Flip Flop Block - Aluminium Cam Cleat","description":"\u003cp\u003e\u003cstrong\u003e20mm Dynamic Flip Flop Block - Aluminium Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003eFlip Flop Blocks are designed to pivot around a central fixing point, keeping the rope close to the deck, mast or boom while still allowing the block to articulate to the correct lead angle. This helps minimise friction while guiding the rope efficiently.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelocatable Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFeatures two mounting positions for the Dynamic Bearing sheave. Simply remove the clevis pin holding the sheave in place and relocate it to either fixing hole in the main body. This provides greater installation flexibility across a wider range of applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamic Bearing Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe sheave features Allen's Dynamic Bearing technology, using twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides superior load-carrying capability and longevity compared to bearing systems that run on plastic rails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemovable Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA clevis pin connects the main Flip Flop body to the backing plate and serves as the pivot point. Removing the pin separates the body from the backing plate, allowing easier installation and enabling the body to be fitted either way up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAluminium Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFitted with the A..77 small ball bearing cam cleat. The jaw profile is optimised for smooth rope entry and exit, reducing rope wear. Ball bearings and twin coil springs provide a smooth, consistent cleating action.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHalyards\u003c\/li\u003e\n\u003cli\u003ePole launchers\u003c\/li\u003e\n\u003cli\u003eControl lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Drawing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClick the PDF above to view the full detailed dimensions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196764529015,"sku":"A2123-77","price":83.78,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2133-77.jpg?v=1781800518"},{"product_id":"flip-flop-block","title":"30mm Dynamic Flip Flop Block","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003e30mm Dynamic Flip Flop Block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFlip Flop Blocks are designed to pivot around a central fixing point, keeping the rope close to the deck, mast or boom while still allowing the block to articulate to the correct lead angle. This helps minimise friction while guiding the rope efficiently.\u003c\/p\u003e\n\u003cp\u003eManufactured from laser-cut stainless steel, the body and backing plate are produced to precise tolerances, ensuring consistent quality, maximum strength and a compact design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamic Bearing Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 30mm sheave features Allen's Dynamic Bearing technology, using twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides superior load-carrying capability and longevity compared to bearing systems that run on plastic rails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemovable Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA clevis pin connects the main Flip Flop body to the backing plate and serves as the pivot point. Removing the pin separates the body from the backing plate, allowing easier installation and enabling the body to be fitted either way up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003c\/li\u003e\n\u003cli\u003eKeelboat control lines\u003c\/li\u003e\n\u003cli\u003ePump-action spinnaker systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Drawing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClick the PDF above to view the full detailed dimensions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196765970807,"sku":"A2133","price":44.31,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2133.jpg?v=1781800539"},{"product_id":"30mm-flip-flop-block-with-a-677-cleat","title":"30mm Dynamic Flip Flop Block - Allenite Cam Cleat","description":"\u003cp\u003e\u003cstrong\u003e30mm Dynamic Flip Flop Block - Allenite Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003eFlip Flop Blocks are designed to pivot around a central fixing point, keeping the rope close to the deck, mast or boom while still allowing the block to articulate to the correct lead angle. This helps minimise friction while guiding the rope efficiently.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelocatable Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFeatures two mounting positions for the Dynamic Bearing sheave. Simply remove the clevis pin holding the sheave in place and relocate it to either fixing hole in the main body. This provides greater installation flexibility across a wider range of applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamic Bearing Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe sheave features Allen's Dynamic Bearing technology, using twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides superior load-carrying capability and longevity compared to bearing systems that run on plastic rails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemovable Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA clevis pin connects the main Flip Flop body to the backing plate and serves as the pivot point. Removing the pin separates the body from the backing plate, allowing easier installation and enabling the body to be fitted either way up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAllenite Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFitted with the A.677 small Allenite cam cleat. Allenite is a material developed by Allen to provide low weight and excellent heat dissipation, increasing wear resistance compared to standard acetals. The Allenite cam cleat also offers a significant weight saving over the aluminium version.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for lower-load applications such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHalyards\u003c\/li\u003e\n\u003cli\u003ePole launchers\u003c\/li\u003e\n\u003cli\u003eJib sheets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor higher-load applications, we recommend using the A2133-77.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Drawing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClick the PDF above to view the full detailed dimensions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196766101879,"sku":"A2133-677","price":62.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2133-677_cc7abfd2-e5cb-4721-8e94-70c0bef2e449.jpg?v=1781800540"},{"product_id":"30mm-flip-flop-block-with-a-77-cleat","title":"30mm Dynamic Flip Flop Block - Aluminium Cam Cleat","description":"\u003cp\u003e\u003cstrong\u003e30mm Dynamic Flip Flop Block - Aluminium Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFlip Flop Blocks are designed to pivot around a central fixing point, keeping the rope close to the deck, mast or boom while still allowing the block to articulate to the correct lead angle. This helps minimise friction while guiding the rope efficiently.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelocatable Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFeatures two mounting positions for the Dynamic Bearing sheave. Simply remove the clevis pin holding the sheave in place and relocate it to either fixing hole in the main body. This provides greater installation flexibility across a wider range of applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamic Bearing Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe sheave features Allen's Dynamic Bearing technology, using twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides superior load-carrying capability and longevity compared to bearing systems that run on plastic rails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemovable Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA clevis pin connects the main Flip Flop body to the backing plate and serves as the pivot point. Removing the pin separates the body from the backing plate, allowing easier installation and enabling the body to be fitted either way up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAluminium Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFitted with the A..77 small ball bearing cam cleat. The jaw profile is optimised for smooth rope entry and exit, reducing rope wear. Ball bearings and twin coil springs provide a smooth, consistent cleating action.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHalyards\u003c\/li\u003e\n\u003cli\u003ePole launchers\u003c\/li\u003e\n\u003cli\u003eControl lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe large version of the backing plate shown in some product images is not included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Drawing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClick the PDF above to view the full detailed dimensions.\u003c\/p\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196766200183,"sku":"A2133-77","price":84.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2133-77-1.jpg?v=1781800541"},{"product_id":"40mm-flip-flop-block","title":"40mm Dynamic Flip Flop Block","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003e40mm Dynamic Flip Flop Block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFlip Flop Blocks are designed to pivot around a central fixing point, keeping the rope close to the deck, mast or boom while still allowing the block to articulate to the correct lead angle. This helps minimise friction while guiding the rope efficiently.\u003c\/p\u003e\n\u003cp\u003eManufactured from laser-cut stainless steel, the body and backing plate are produced to precise tolerances, ensuring consistent quality, maximum strength and a compact design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamic Bearing Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe sheave features Allen's Dynamic Bearing technology, using twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides superior load-carrying capability and longevity compared to bearing systems that run on plastic rails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemovable Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA clevis pin connects the main Flip Flop body to the backing plate and serves as the pivot point. Removing the pin separates the body from the backing plate, allowing easier installation and enabling the body to be fitted either way up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Mounting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe backing plate features fixing hole centres of 60.3mm, making the range easily interchangeable with existing products on the market.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHalyards\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheet turning points\u003c\/li\u003e\n\u003cli\u003eSheet leads\u003c\/li\u003e\n\u003cli\u003eBackstay systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Drawing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClick the PDF above to view the full detailed dimensions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196767379831,"sku":"A2143","price":53.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2143-shot-2-EDITED-1.jpg?v=1781800552"},{"product_id":"40mm-flip-flop-block-with-allenite-cam-cleat","title":"40mm Dynamic Flip Flop Block - Allenite Cam Cleat","description":"\u003cp\u003e\u003cstrong\u003e40mm Dynamic Flip Flop Block - Allenite Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003eFlip Flop Blocks are designed to pivot around a central fixing point, keeping the rope close to the deck, mast or boom while still allowing the block to articulate to the correct lead angle. This helps minimise friction while guiding the rope efficiently.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelocatable Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFeatures two mounting positions for the Dynamic Bearing sheave. Simply remove the retaining bolt and relocate the sheave to either fixing hole in the main body. This provides greater installation flexibility across a wider range of applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamic Bearing Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 40mm sheave features Allen's Dynamic Bearing technology, using twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides superior load-carrying capability and longevity compared to bearing systems that run on plastic rails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemovable Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA clevis pin connects the main Flip Flop body to the backing plate and serves as the pivot point. Removing the pin separates the body from the backing plate, allowing easier installation and enabling the body to be fitted either way up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAllenite Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFitted with the A.676 medium Allenite cam cleat. Allenite is a material developed by Allen to provide low weight and excellent heat dissipation, increasing wear resistance compared to standard acetals. The Allenite cam cleat also offers a significant weight saving over the aluminium version.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for lower-load applications such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHalyards\u003c\/li\u003e\n\u003cli\u003ePole launchers\u003c\/li\u003e\n\u003cli\u003eJib sheets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor higher-load applications, we recommend using the A2143-76.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Drawing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClick the PDF above to view the full detailed dimensions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196767445367,"sku":"A2143-676","price":76.57,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2143-676-1.jpg?v=1781800554"},{"product_id":"40mm-flip-flop-block-with-cam-cleat","title":"40mm Dynamic Flip Flop Block - Aluminium Cam Cleat","description":"\u003cp\u003e\u003cstrong\u003e40mm Dynamic Flip Flop Block - Aluminium Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003eFlip Flop Blocks are designed to pivot around a central fixing point, keeping the rope close to the deck, mast or boom while still allowing the block to articulate to the correct lead angle. This helps minimise friction while guiding the rope efficiently.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelocatable Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFeatures two mounting positions for the Dynamic Bearing sheave. Simply remove the retaining bolt and relocate the sheave to either fixing hole in the main body. This provides greater installation flexibility across a wider range of applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamic Bearing Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 40mm sheave features Allen's Dynamic Bearing technology, using twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides superior load-carrying capability and longevity compared to bearing systems that run on plastic rails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemovable Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA clevis pin connects the main Flip Flop body to the backing plate and serves as the pivot point. Removing the pin separates the body from the backing plate, allowing easier installation and enabling the body to be fitted either way up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAluminium Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFitted with the A..76 medium ball bearing cam cleat. The jaw profile is optimised for smooth rope entry and exit, reducing rope wear. Ball bearings and twin coil springs deliver a smooth, consistent cleating action.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for a wide range of boats and control systems, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eJ\/70 spinnaker halyard upgrades\u003c\/li\u003e\n\u003cli\u003eF18 and Nacra 17 spinnaker halyards\u003c\/li\u003e\n\u003cli\u003eSmall keelboat pole launcher systems\u003c\/li\u003e\n\u003cli\u003eDinghy and small keelboat spinnaker or jib sheet turning points\u003c\/li\u003e\n\u003cli\u003eDinghy jib sheet cleats\u003c\/li\u003e\n\u003cli\u003eKeelboat outhaul systems\u003c\/li\u003e\n\u003cli\u003eKeelboat backstay systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Drawing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClick the PDF above to view the full detailed dimensions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196767576439,"sku":"A2143-76","price":94.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2143-7620shot202-1.jpg?v=1781800555"},{"product_id":"a4988x-180-swivel-cleat-with-removable-sheave","title":"30mm Dynamic Lightweight Flip Flop Block - Removable Sheave","description":"\u003cp\u003e30mm Dynamic Lightweight Flip Flop Block With Removable Sheave\u003c\/p\u003e\n\u003cp\u003eFlip Flop Blocks are designed to pivot around a central fixing point, keeping the rope close to the deck, mast or boom while still allowing the block to articulate to the correct lead angle. This helps minimise friction while guiding the rope efficiently.\u003c\/p\u003e\n\u003cp\u003eThis lightweight version features a nylon body and nylon backing plate to keep both weight and cost to a minimum.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e30mm Dynamic Bearing Sheave\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFeatures a 30mm Dynamic Bearing sheave, using twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides superior load-carrying capability and longevity compared to bearing systems that run on plastic rails.\u003c\/p\u003e\n\u003cp\u003eThe sheave can be moved to one of the two locations. Allowing for rope to enter from above or below. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAllenite Cam Cleat\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFitted with the A.677 small Allenite cam cleat. Allenite is a material developed by Allen to provide low weight and excellent heat dissipation, increasing wear resistance compared to standard acetals. The Allenite cam cleat also offers a significant weight saving over the aluminium version.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for lower-load applications such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHalyards\u003c\/li\u003e\n\u003cli\u003ePole launchers\u003c\/li\u003e\n\u003cli\u003eJib sheets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor higher-load applications, we recommend using the A2133-77.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Drawing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClick the PDF above to view the full detailed dimensions.\u003c\/p\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196824592759,"sku":"A4988X","price":53.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A4988X.jpg?v=1781801077"}],"url":"https:\/\/allenbrothers.co.uk\/collections\/flip-flop-blocks.oembed","provider":"Allen | Performance Sailing Hardware","version":"1.0","type":"link"}