{"product_id":"harken-25-mm-single-fly-block-ilca","title":"Harken 25 mm Single Fly Block - ILCA","description":"\u003c!-- harken-official:v2 sku:1250.ILCA page_sha256:0d8f0e715ef5dbb9397472eaf969186d95b04157ca8f1812c3f10c10007acdf9 --\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThe 25mm Harken Fly Block is designed to provide strength without mass, providing sailors with big power in a low aero package. Designed specifically for high-tech line, these efficient blocks have an incredible working load for their small size. The high strength cast stainless steel boom key is uniquely shaped and angled to minimize weight, and remain in place, even under zero tension.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;width:100%;max-width:100%;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eBreaking load (kg)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e550 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eBreaking load (lb)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e1212 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eLength (in)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e1 3\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eLength (mm)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eMaximum line Ø (mm)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eMaximum working load (kg)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e275 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eMaximum working load (lb)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e606 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eSheave Ø (in)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eSheave Ø (mm)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eWeight (g)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e34 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eWeight (oz)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e1.2 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c!-- sr-faq v=1 vendor=harken source_sha256=5da652642c80172f6f3bc6289fec9cb7c9fa0572b567ab81192a4808831f3cd2 --\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003cdetails\u003e\u003csummary\u003eWhere can more maintenance and warranty info be found?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eConsult the Harken manuals or catalog for additional safety, maintenance, and warranty information.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the boom attachment key removable for maintenance or replacement?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes, the cast stainless steel boom attachment key is removable if replacement is necessary.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eAre there any specific installation orientations for this block?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eThe large fiddle sheave should be oriented horizontally for optimal clearance and reduced friction.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eShould sheaves and cam pawls be rotated during maintenance?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eRotate sheaves and cam pawls while cleaning to distribute fresh water and detergent.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow should I clean and maintain the block?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eClean the block and attachments frequently with detergent and fresh water applied into sheave and sideplate areas. Rotate the sheaves while cleaning to distribute the water.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat type of attachment is used for boom connection?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eThe block uses a cast stainless steel boom attachment key that is uniquely shaped and angled.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs there a cleat included in the vang system assembly?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eA Harken 468 Micro Cam-Matic® cleat is provided as standard in the lower assembly.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat type of sheave is used in the 1250.ILCA Upper block?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eThe 1250.ILCA Upper block is equipped with a 25 mm Fly sheave and a cast stainless steel boom attachment key, which is removable if replacement is necessary.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat safety precautions are mentioned in the instructions?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eStrictly follow all instructions to avoid accident, damage, personal injury, or death. Additional safety information is available from the manufacturer.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs the cast stainless steel boom attachment key replaceable?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes, the cast stainless steel boom attachment key supplied with the block is removable for replacement if necessary.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eShould any parts be lubricated during care?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo lubrication should be used during care. Ball bearings are designed to roll without lubrication.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the correct orientation for the large fiddle sheave?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eThe large fiddle sheave should be oriented horizontally for maximum clearance and reduced friction.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Where can more maintenance and warranty info be found?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Consult the Harken manuals or catalog for additional safety, maintenance, and warranty information.\"}}, {\"@type\": \"Question\", \"name\": \"Is the boom attachment key removable for maintenance or replacement?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, the cast stainless steel boom attachment key is removable if replacement is necessary.\"}}, {\"@type\": \"Question\", \"name\": \"Are there any specific installation orientations for this block?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The large fiddle sheave should be oriented horizontally for optimal clearance and reduced friction.\"}}, {\"@type\": \"Question\", \"name\": \"Should sheaves and cam pawls be rotated during maintenance?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Rotate sheaves and cam pawls while cleaning to distribute fresh water and detergent.\"}}, {\"@type\": \"Question\", \"name\": \"How should I clean and maintain the block?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Clean the block and attachments frequently with detergent and fresh water applied into sheave and sideplate areas. Rotate the sheaves while cleaning to distribute the water.\"}}, {\"@type\": \"Question\", \"name\": \"What type of attachment is used for boom connection?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The block uses a cast stainless steel boom attachment key that is uniquely shaped and angled.\"}}, {\"@type\": \"Question\", \"name\": \"Is there a cleat included in the vang system assembly?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A Harken 468 Micro Cam-Matic® cleat is provided as standard in the lower assembly.\"}}, {\"@type\": \"Question\", \"name\": \"What type of sheave is used in the 1250.ILCA Upper block?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 1250.ILCA Upper block is equipped with a 25 mm Fly sheave and a cast stainless steel boom attachment key, which is removable if replacement is necessary.\"}}, {\"@type\": \"Question\", \"name\": \"What safety precautions are mentioned in the instructions?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Strictly follow all instructions to avoid accident, damage, personal injury, or death. Additional safety information is available from the manufacturer.\"}}, {\"@type\": \"Question\", \"name\": \"Is the cast stainless steel boom attachment key replaceable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, the cast stainless steel boom attachment key supplied with the block is removable for replacement if necessary.\"}}, {\"@type\": \"Question\", \"name\": \"Should any parts be lubricated during care?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No lubrication should be used during care. Ball bearings are designed to roll without lubrication.\"}}, {\"@type\": \"Question\", \"name\": \"What is the correct orientation for the large fiddle sheave?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The large fiddle sheave should be oriented horizontally for maximum clearance and reduced friction.\"}}]}\u003c\/script\u003e\u003c!-- \/sr-faq --\u003e\u003c!-- \/harken-official --\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":53250874245457,"sku":"1250.ILCA","price":1082.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/24357ae0-2e90-425b-86b9-42aaeb8d88ff.jpg?v=1772621558","url":"https:\/\/www.sailrace.com\/zh-cn\/products\/harken-25-mm-single-fly-block-ilca","provider":"SailRACE","version":"1.0","type":"link"}