{"title":"Harken Mastbase Blocks","description":"\u003cp\u003e\u003cspan\u003eLow-profile mastbase halyard lead blocks can be grouped in a small area at the mastbase. Fixed blocks lead halyards and control lines aft, allowing crew to raise or lower sails, or make tuning adjustments from the cockpit. Teardrop blocks are ideal as masthead leads and in other applications where limited articulation or direct attachment is desired. When attached to a compatible padeye, teardrop blocks will not hit the deck when lines are slack, but allow enough movement to ensure fairleads when jumping halyards.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"harken-44-mm-aluminum-mastbase-block","title":"Harken 44 mm Aluminum Mastbase Block","description":"\u003cp\u003eLow-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase. \u003c\/p\u003e \u003cdiv id=\"gap-842760433\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 44 mm\u003cbr\u003e Sheave Ø (in) 1 3\/4 in\u003cbr\u003e Length (mm) 73 mm\u003cbr\u003e Length (in) 2 7\/8 in\u003cbr\u003e Width (mm) 22 mm\u003cbr\u003e Width (in) 7\/8 in\u003cbr\u003e Height (mm) 57 mm\u003cbr\u003e Height (in) 2 1\/4 in\u003cbr\u003e Weight (g) 95 g\u003cbr\u003e Weight (oz) 3.36 oz\u003cbr\u003e Maximum line Ø (mm) 10 mm\u003cbr\u003e Maximum line Ø (in) 3\/8 in\u003cbr\u003e Number of fasteners 2\u003cbr\u003e Fasteners (mm) 6 RH mm\u003cbr\u003e Fasteners (in) 1\/4 RH in\u003cbr\u003e Maximum working load (kg) 340 kg\u003cbr\u003e Maximum working load (lb) 750 lb\u003cbr\u003e Breaking load (lb) 1500 lb\u003cbr\u003e Breaking load (kg) 680 kg\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625573646673,"sku":"HKN-1986","price":96.12,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-44mm-aluminum-mastbase-block.jpg?v=1754725025"},{"product_id":"harken-57-mm-aluminum-mastbase-block","title":"Harken 57 mm Aluminum Mastbase Block","description":"\u003cp\u003eLow-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase. \u003c\/p\u003e \u003cdiv id=\"gap-1947966134\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 57 mm\u003cbr\u003e Sheave Ø (in) 2 1\/4 in\u003cbr\u003e Length (mm) 81 mm\u003cbr\u003e Length (in) 3 3\/16 in\u003cbr\u003e Width (mm) 35 mm\u003cbr\u003e Width (in) 1 3\/8 in\u003cbr\u003e Height (mm) 73 mm\u003cbr\u003e Height (in) 2 7\/8 in\u003cbr\u003e Weight (g) 175 g\u003cbr\u003e Weight (oz) 6.2 oz\u003cbr\u003e Maximum line Ø (mm) 10 mm\u003cbr\u003e Maximum line Ø (in) 3\/8 in\u003cbr\u003e Number of fasteners 3\u003cbr\u003e Fasteners (mm) 6 FH mm\u003cbr\u003e Fasteners (in) 1\/4 FH in\u003cbr\u003e Maximum working load (kg) 1136 kg\u003cbr\u003e Maximum working load (lb) 2500 lb\u003cbr\u003e Breaking load (lb) 5000 lb\u003cbr\u003e Breaking load (kg) 2273 kg\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625573810513,"sku":"HKN-1988","price":236.8,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-57mm-aluminum-mastbase-block.jpg?v=1754725028"},{"product_id":"harken-76-mm-aluminum-mastbase-block","title":"Harken 76 mm Aluminum Mastbase Block","description":"\u003cp\u003eLow-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase. \u003c\/p\u003e \u003cdiv id=\"gap-128122182\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 76 mm\u003cbr\u003e Sheave Ø (in) 3 in\u003cbr\u003e Length (mm) 97 mm\u003cbr\u003e Length (in) 3 13\/16 in\u003cbr\u003e Width (mm) 32 mm\u003cbr\u003e Width (in) 1 1\/4 in\u003cbr\u003e Height (mm) 95 mm\u003cbr\u003e Height (in) 3 3\/4 in\u003cbr\u003e Weight (g) 326 g\u003cbr\u003e Weight (oz) 11.5 oz\u003cbr\u003e Maximum line Ø (mm) 12 mm\u003cbr\u003e Maximum line Ø (in) 1\/2 in\u003cbr\u003e Number of fasteners 4\u003cbr\u003e Fasteners (mm) 8 FH mm\u003cbr\u003e Fasteners (in) 5\/16 FH in\u003cbr\u003e Maximum working load (kg) 2273 kg\u003cbr\u003e Maximum working load (lb) 5000 lb\u003cbr\u003e Breaking load (lb) 10000 lb\u003cbr\u003e Breaking load (kg) 4545 kg\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625574072657,"sku":"HKN-1990","price":357.13,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/product_005737b7-b5d1-4c10-ae33-7e8351a68676.webp?v=1775475558"},{"product_id":"harken-102-mm-aluminum-mastbase-block","title":"Harken 102 mm Aluminum Mastbase Block","description":"\u003cp\u003eLow-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase. \u003c\/p\u003e \u003cdiv id=\"gap-2021682457\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 102 mm\u003cbr\u003e Sheave Ø (in) 4 in\u003cbr\u003e Length (mm) 130 mm\u003cbr\u003e Length (in) 5 1\/8 in\u003cbr\u003e Width (mm) 41 mm\u003cbr\u003e Width (in) 1 5\/8 in\u003cbr\u003e Height (mm) 130 mm\u003cbr\u003e Height (in) 5 1\/8 in\u003cbr\u003e Weight (g) 708 g\u003cbr\u003e Weight (oz) 24.9 oz\u003cbr\u003e Maximum line Ø (mm) 18 mm\u003cbr\u003e Maximum line Ø (in) 11\/16 in\u003cbr\u003e Number of fasteners 2\u003cbr\u003e Fasteners (mm) 16 HH mm\u003cbr\u003e Fasteners (in) 5\/8 HH in\u003cbr\u003e Maximum working load (kg) 4990 kg\u003cbr\u003e Maximum working load (lb) 11000 lb\u003cbr\u003e Breaking load (lb) 22000 lb\u003cbr\u003e Breaking load (kg) 9980 kg\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625577021777,"sku":"HKN-3123","price":505.64,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-102mm-aluminum-mastbase-block.jpg?v=1754725078"},{"product_id":"harken-102-mm-fixed-mastbase-halyard-lead","title":"Harken 102 mm Fixed Mastbase Halyard Lead","description":"\u003cp\u003eLow-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase. Flared cheeks prevent chafe on the halyards. The high-load bearing system has a PTFE composite bushing and sideload balls. The sheave is hardcoat-anodized aluminum for additional strength. \u003c\/p\u003e \u003cdiv id=\"gap-1900553060\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 102 mm\u003cbr\u003e Sheave Ø (in) 4 in\u003cbr\u003e Length (mm) 173 mm\u003cbr\u003e Length (in) 6 13\/16 in\u003cbr\u003e Width (mm) 50 mm\u003cbr\u003e Width (in) 1 15\/16 in\u003cbr\u003e Height (mm) 130 mm\u003cbr\u003e Height (in) 5 1\/8 in\u003cbr\u003e Weight (g) 1000 g\u003cbr\u003e Weight (oz) 35.25 oz\u003cbr\u003e Maximum line Ø (mm) 16 mm\u003cbr\u003e Maximum line Ø (in) 5\/8 in\u003cbr\u003e Number of fasteners 3\u003cbr\u003e Fasteners (mm) M16 SHCS mm\u003cbr\u003e Maximum working load (kg) 6000 kg\u003cbr\u003e Maximum working load (lb) 13227 lb\u003cbr\u003e Breaking load (lb) 26455 lb\u003cbr\u003e Breaking load (kg) 12000 kg\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625580953937,"sku":"HKN-3192","price":1019.07,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/product_802f245e-6d62-472d-a01e-699140bd7bb0.webp?v=1775472084"},{"product_id":"harken-57-mm-aluminum-padeye-block","title":"Harken 57 mm Aluminum Padeye Block","description":"\u003cp\u003eTeardrop blocks are ideal as masthead leads and in other applications where limited articulation or direct attachment is desired. When attached to a compatible padeye, teardrop blocks will not hit the deck when lines are slack, but allow enough movement to ensure fairleads when jumping halyards. They are often used on permanent backstays of fractionally rigged boats where the backstay can be spliced directly to the head of the block. Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C. \u003c\/p\u003e \u003cdiv id=\"gap-741030300\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 57 mm\u003cbr\u003e Sheave Ø (in) 2 1\/4 in\u003cbr\u003e Length (mm) 86 mm\u003cbr\u003e Length (in) 3 3\/8 in\u003cbr\u003e Weight (g) 111 g\u003cbr\u003e Weight (oz) 3.92 oz\u003cbr\u003e Clevis pin Ø (mm) 8 mm\u003cbr\u003e Clevis pin Ø (in) 5\/16 in\u003cbr\u003e Maximum line Ø (mm) 10 mm\u003cbr\u003e Maximum line Ø (in) 3\/8 in\u003cbr\u003e Maximum working load (kg) 1134 kg\u003cbr\u003e Maximum working load (lb) 2500 lb\u003cbr\u003e Breaking load (kg) 2268 kg\u003cbr\u003e Breaking load (lb) 5000 lb\u003cbr\u003e Use with padeye 627\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625582854481,"sku":"HKN-3223","price":237.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-57mm-aluminum-padeye-block.jpg?v=1754725174"},{"product_id":"harken-75-mm-high-load-padeye-block","title":"Harken 75 mm High-Load Padeye Block","description":"\u003cp\u003eTeardrop blocks are ideal as masthead leads and in other applications where limited articulation or direct attachment is desired. When attached to a compatible padeye, teardrop blocks will not hit the deck when lines are slack, but allow enough movement to ensure fairleads when jumping halyards. They are often used on permanent backstays of fractionally rigged boats where the backstay can be spliced directly to the head of the block. Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C. \u003c\/p\u003e \u003cdiv id=\"gap-1965164254\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 75 mm\u003cbr\u003e Sheave Ø (in) 2 15\/16 in\u003cbr\u003e Length (mm) 113 mm\u003cbr\u003e Length (in) 4 7\/16 in\u003cbr\u003e Weight (g) 247 g\u003cbr\u003e Weight (oz) 8.72 oz\u003cbr\u003e Clevis pin Ø (mm) 10 mm\u003cbr\u003e Clevis pin Ø (in) 3\/8 in\u003cbr\u003e Maximum line Ø (mm) 14 mm\u003cbr\u003e Maximum line Ø (in) 9\/16 in\u003cbr\u003e Maximum working load (kg) 2268 kg\u003cbr\u003e Maximum working load (lb) 5000 lb\u003cbr\u003e Breaking load (kg) 4536 kg\u003cbr\u003e Breaking load (lb) 10000 lb\u003cbr\u003e Use with padeye 648\/689\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625584689489,"sku":"HKN-3240","price":478.65,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-75mm-high-load-padeye-block.jpg?v=1754725208"},{"product_id":"harken-100-mm-aluminum-padeye-block","title":"Harken 100 mm Aluminum Padeye Block","description":"\u003cp\u003eTeardrop blocks are ideal as masthead leads and in other applications where limited articulation or direct attachment is desired. When attached to a compatible padeye, teardrop blocks will not hit the deck when lines are slack, but allow enough movement to ensure fairleads when jumping halyards. They are often used on permanent backstays of fractionally rigged boats where the backstay can be spliced directly to the head of the block. Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C. \u003c\/p\u003e \u003cdiv id=\"gap-794948898\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 100 mm\u003cbr\u003e Sheave Ø (in) 3 15\/16 in\u003cbr\u003e Length (mm) 148 mm\u003cbr\u003e Length (in) 5 13\/16 in\u003cbr\u003e Weight (g) 454 g\u003cbr\u003e Weight (oz) 16 oz\u003cbr\u003e Clevis pin Ø (mm) 12.7 mm\u003cbr\u003e Clevis pin Ø (in) 1\/2 in\u003cbr\u003e Maximum line Ø (mm) 16 mm\u003cbr\u003e Maximum line Ø (in) 5\/8 in\u003cbr\u003e Maximum working load (kg) 3402 kg\u003cbr\u003e Maximum working load (lb) 7500 lb\u003cbr\u003e Breaking load (kg) 6804 kg\u003cbr\u003e Breaking load (lb) 15000 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625586655569,"sku":"HKN-3253","price":739.81,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-100mm-aluminum-padeye-block.jpg?v=1754725233"},{"product_id":"harken-100-mm-stainless-steel-teardrop-block","title":"Harken 100 mm Stainless Steel Teardrop Block","description":"\u003cp\u003eStainless sideplates are mirror-polished for durability and unmatched esthetics. The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads. \u003c\/p\u003e \u003cdiv id=\"gap-227025549\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 100 mm\u003cbr\u003e Sheave Ø (in) 3 15\/16 in\u003cbr\u003e Weight (kg) 1.35 kg\u003cbr\u003e Weight (lb) 2.98 lb\u003cbr\u003e Length (mm) 162 mm\u003cbr\u003e Length (in) 6 3\/8 in\u003cbr\u003e Maximum line Ø (mm) 16 mm\u003cbr\u003e Maximum line Ø (in) 5\/8 in\u003cbr\u003e Maximum working load (kg) 5000 kg\u003cbr\u003e Maximum working load (lb) 11025 lb\u003cbr\u003e Breaking load (kg) 10000 kg\u003cbr\u003e Breaking load (lb) 22050 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625597894993,"sku":"HKN-HC9078","price":4033.75,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-100mm-stainless-steel-teardrop-block.jpg?v=1754725338"},{"product_id":"harken-125-mm-stainless-steel-teardrop-block","title":"Harken 125 mm Stainless Steel Teardrop Block","description":"\u003cp\u003eStainless sideplates are mirror-polished for durability and unmatched esthetics. The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads. \u003c\/p\u003e \u003cdiv id=\"gap-797551871\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 125 mm\u003cbr\u003e Sheave Ø (in) 4 15\/16 in\u003cbr\u003e Weight (kg) 2.11 kg\u003cbr\u003e Weight (lb) 4.64 lb\u003cbr\u003e Length (mm) 190.5 mm\u003cbr\u003e Length (in) 7 1\/2 in\u003cbr\u003e Maximum line Ø (mm) 19 mm\u003cbr\u003e Maximum line Ø (in) 3\/4 in\u003cbr\u003e Maximum working load (kg) 7000 kg\u003cbr\u003e Maximum working load (lb) 15435 lb\u003cbr\u003e Breaking load (kg) 14000 kg\u003cbr\u003e Breaking load (lb) 30870 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625598222673,"sku":"HKN-HC9083","price":5193.54,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-125mm-stainless-steel-teardrop-block.jpg?v=1754725345"},{"product_id":"harken-150-mm-stainless-steel-teardrop-block","title":"Harken 150 mm Stainless Steel Teardrop Block","description":"\u003cp\u003eStainless sideplates are mirror-polished for durability and unmatched esthetics. The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads. \u003c\/p\u003e \u003cdiv id=\"gap-573007250\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 150 mm\u003cbr\u003e Sheave Ø (in) 5 15\/16 in\u003cbr\u003e Weight (kg) 3.68 kg\u003cbr\u003e Weight (lb) 8.11 lb\u003cbr\u003e Length (mm) 232 mm\u003cbr\u003e Length (in) 9 1\/8 in\u003cbr\u003e Maximum line Ø (mm) 25 mm\u003cbr\u003e Maximum line Ø (in) 1 in\u003cbr\u003e Maximum working load (kg) 10000 kg\u003cbr\u003e Maximum working load (lb) 22050 lb\u003cbr\u003e Breaking load (kg) 20000 kg\u003cbr\u003e Breaking load (lb) 44100 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625598615889,"sku":"HKN-HC9088","price":6533.67,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-150mm-stainless-steel-teardrop-block.jpg?v=1754725355"},{"product_id":"harken-175-mm-stainless-steel-teardrop-block","title":"Harken 175 mm Stainless Steel Teardrop Block","description":"\u003cp\u003eStainless sideplates are mirror-polished for durability and unmatched esthetics. The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads. \u003c\/p\u003e \u003cdiv id=\"gap-68135587\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 175 mm\u003cbr\u003e Sheave Ø (in) 6 7\/8 in\u003cbr\u003e Weight (kg) 5.45 kg\u003cbr\u003e Weight (lb) 12.01 lb\u003cbr\u003e Length (mm) 267 mm\u003cbr\u003e Length (in) 10 1\/2 in\u003cbr\u003e Maximum line Ø (mm) 25 mm\u003cbr\u003e Maximum line Ø (in) 1 in\u003cbr\u003e Maximum working load (kg) 15000 kg\u003cbr\u003e Maximum working load (lb) 33075 lb\u003cbr\u003e Breaking load (kg) 30000 kg\u003cbr\u003e Breaking load (lb) 66150 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625598878033,"sku":"HKN-HC9093","price":10035.11,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-175mm-stainless-steel-teardrop-block.jpg?v=1754725358"},{"product_id":"harken-75-mm-stainless-steel-teardrop-block","title":"Harken 75 mm Stainless Steel Teardrop Block","description":"\u003cp\u003eStainless sideplates are mirror-polished for durability and unmatched esthetics. The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads. \u003c\/p\u003e \u003cdiv id=\"gap-228493581\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 75 mm\u003cbr\u003e Sheave Ø (in) 2 15\/16 in\u003cbr\u003e Weight (kg) 0.59 kg\u003cbr\u003e Weight (lb) 1.3 lb\u003cbr\u003e Length (mm) 123 mm\u003cbr\u003e Length (in) 4 27\/32 in\u003cbr\u003e Maximum line Ø (mm) 14 mm\u003cbr\u003e Maximum line Ø (in) 9\/16 in\u003cbr\u003e Maximum working load (kg) 2268 kg\u003cbr\u003e Maximum working load (lb) 5000 lb\u003cbr\u003e Breaking load (kg) 4536 kg\u003cbr\u003e Breaking load (lb) 10000 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625599861073,"sku":"HKN-HC9990","price":2093.34,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-75mm-stainless-steel-teardrop-block.jpg?v=1754725379"},{"product_id":"harken-100-mm-aluminum-teardrop-block","title":"Harken 100 mm Aluminum Teardrop Block","description":"\u003cp\u003eSideplates are constructed of hardcoat-anodized 6061-T6 aluminum for strength and corrosion resistance. The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads. \u003c\/p\u003e \u003cdiv id=\"gap-1924348398\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 100 mm\u003cbr\u003e Sheave Ø (in) 3 15\/16 in\u003cbr\u003e Weight (kg) 0.87 kg\u003cbr\u003e Weight (lb) 1.91 lb\u003cbr\u003e Length (mm) 162 mm\u003cbr\u003e Length (in) 6 3\/8 in\u003cbr\u003e Maximum line Ø (mm) 16 mm\u003cbr\u003e Maximum line Ø (in) 5\/8 in\u003cbr\u003e Maximum working load (kg) 5000 kg\u003cbr\u003e Maximum working load (lb) 11025 lb\u003cbr\u003e Breaking load (kg) 10000 kg\u003cbr\u003e Breaking load (lb) 22050 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625611100497,"sku":"HKN-HC8667","price":2504.83,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-100mm-aluminum-teardrop-block.jpg?v=1754725522"},{"product_id":"harken-125-mm-aluminum-teardrop-block","title":"Harken 125 mm Aluminum Teardrop Block","description":"\u003cp\u003eSideplates are constructed of hardcoat-anodized 6061-T6 aluminum for strength and corrosion resistance. The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads. \u003c\/p\u003e \u003cdiv id=\"gap-1819155982\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 125 mm\u003cbr\u003e Sheave Ø (in) 4 15\/16 in\u003cbr\u003e Weight (kg) 1.35 kg\u003cbr\u003e Weight (lb) 2.99 lb\u003cbr\u003e Length (mm) 191 mm\u003cbr\u003e Length (in) 7 1\/2 in\u003cbr\u003e Maximum line Ø (mm) 19 mm\u003cbr\u003e Maximum line Ø (in) 3\/4 in\u003cbr\u003e Maximum working load (kg) 7000 kg\u003cbr\u003e Maximum working load (lb) 15435 lb\u003cbr\u003e Breaking load (kg) 14000 kg\u003cbr\u003e Breaking load (lb) 30870 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625612181841,"sku":"HKN-HC8640","price":3148.2,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-125mm-aluminum-teardrop-block.jpg?v=1754725531"},{"product_id":"harken-150-mm-aluminum-teardrop-block","title":"Harken 150 mm Aluminum Teardrop Block","description":"\u003cp\u003eSideplates are constructed of hardcoat-anodized 6061-T6 aluminum for strength and corrosion resistance. The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads. \u003c\/p\u003e \u003cdiv id=\"gap-1419432574\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 150 mm\u003cbr\u003e Sheave Ø (in) 5 15\/16 in\u003cbr\u003e Weight (kg) 2.38 kg\u003cbr\u003e Weight (lb) 5.24 lb\u003cbr\u003e Length (mm) 232 mm\u003cbr\u003e Length (in) 9 1\/8 in\u003cbr\u003e Maximum line Ø (mm) 25 mm\u003cbr\u003e Maximum line Ø (in) 1 in\u003cbr\u003e Maximum working load (kg) 10000 kg\u003cbr\u003e Maximum working load (lb) 22050 lb\u003cbr\u003e Breaking load (kg) 20000 kg\u003cbr\u003e Breaking load (lb) 44100 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625612542289,"sku":"HKN-HC8633","price":4591.73,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-150mm-aluminum-teardrop-block.jpg?v=1754725540"},{"product_id":"harken-175-mm-aluminum-teardrop-block","title":"Harken 175 mm Aluminum Teardrop Block","description":"\u003cp\u003eSideplates are constructed of hardcoat-anodized 6061-T6 aluminum for strength and corrosion resistance. The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads. \u003c\/p\u003e \u003cdiv id=\"gap-1538220259\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 175 mm\u003cbr\u003e Sheave Ø (in) 6 7\/8 in\u003cbr\u003e Weight (kg) 3.3 kg\u003cbr\u003e Weight (lb) 7.28 lb\u003cbr\u003e Length (mm) 267 mm\u003cbr\u003e Length (in) 10 1\/2 in\u003cbr\u003e Maximum line Ø (mm) 25 mm\u003cbr\u003e Maximum line Ø (in) 1 in\u003cbr\u003e Maximum working load (kg) 15000 kg\u003cbr\u003e Maximum working load (lb) 33075 lb\u003cbr\u003e Breaking load (kg) 30000 kg\u003cbr\u003e Breaking load (lb) 66150 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625612837201,"sku":"HKN-HC8631","price":6449.98,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-175mm-aluminum-teardrop-block.jpg?v=1754725546"},{"product_id":"harken-57-mm-aluminum-mast-collar-esp-block","title":"Harken 57 mm Aluminum Mast Collar ESP Block","description":"\u003cp\u003eCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. \u003c\/p\u003e \u003cdiv id=\"gap-858279297\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 57 mm\u003cbr\u003e Sheave Ø (in) 2 1\/4 in\u003cbr\u003e Length (mm) 93.5 mm\u003cbr\u003e Length (in) 3 11\/16 in\u003cbr\u003e Weight (g) 122 g\u003cbr\u003e Weight (oz) 4.3 oz\u003cbr\u003e Clevis pin Ø (mm) 8 mm\u003cbr\u003e Clevis pin Ø (in) 5\/16 in\u003cbr\u003e Maximum line Ø (mm) 16 mm\u003cbr\u003e Maximum line Ø (in) 5\/8 in\u003cbr\u003e Maximum working load (kg) 850 kg\u003cbr\u003e Maximum working load (lb) 2100 lb\u003cbr\u003e Breaking load (kg) 1900 kg\u003cbr\u003e Breaking load (lb) 4190 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625613295953,"sku":"HKN-6050","price":77.36,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-57mm-aluminum-mast-collar-esp-block-jpg.webp?v=1754725553"},{"product_id":"harken-75-mm-aluminum-mast-collar-esp-block","title":"Harken 75 mm Aluminum Mast Collar ESP Block","description":"\u003cp\u003eCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. \u003c\/p\u003e \u003cdiv id=\"gap-610890691\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 75 mm\u003cbr\u003e Sheave Ø (in) 2 15\/16 in\u003cbr\u003e Length (mm) 117 mm\u003cbr\u003e Length (in) 4 5\/8 in\u003cbr\u003e Weight (g) 221 g\u003cbr\u003e Weight (oz) 7.8 oz\u003cbr\u003e Clevis pin Ø (mm) 8 mm\u003cbr\u003e Clevis pin Ø (in) 5\/16 in\u003cbr\u003e Maximum line Ø (mm) 19 mm\u003cbr\u003e Maximum line Ø (in) 3\/4 in\u003cbr\u003e Maximum working load (kg) 1361 kg\u003cbr\u003e Maximum working load (lb) 3000 lb\u003cbr\u003e Breaking load (kg) 2721 kg\u003cbr\u003e Breaking load (lb) 6000 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625613328721,"sku":"HKN-6056","price":113.89,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-75mm-aluminum-mast-collar-esp-block.jpg?v=1754725555"},{"product_id":"harken-75-mm-aluminum-padeye-esp-block","title":"Harken 75 mm Aluminum Padeye ESP Block","description":"\u003cp\u003eCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. \u003c\/p\u003e \u003cdiv id=\"gap-755480623\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 75 mm\u003cbr\u003e Sheave Ø (in) 2 15\/16 in\u003cbr\u003e Length (mm) 119 mm\u003cbr\u003e Length (in) 4 11\/16 in\u003cbr\u003e Weight (g) 238 g\u003cbr\u003e Weight (oz) 8.4 oz\u003cbr\u003e Clevis pin Ø (mm) 10 mm\u003cbr\u003e Clevis pin Ø (in) 3\/8 in\u003cbr\u003e Maximum line Ø (mm) 19 mm\u003cbr\u003e Maximum line Ø (in) 3\/4 in\u003cbr\u003e Maximum working load (kg) 1587 kg\u003cbr\u003e Maximum working load (lb) 3500 lb\u003cbr\u003e Breaking load (kg) 3175 kg\u003cbr\u003e Breaking load (lb) 7000 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625613558097,"sku":"HKN-6057","price":123.31,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-75mm-aluminum-padeye-esp-block.jpg?v=1754725557"},{"product_id":"harken-57-mm-aluminum-padeye-esp-block","title":"Harken 57 mm Aluminum Padeye ESP Block","description":"\u003cp\u003eCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats \u003c\/p\u003e \u003cdiv id=\"gap-598709634\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 57 mm\u003cbr\u003e Sheave Ø (in) 2 1\/4 in\u003cbr\u003e Length (mm) 93.5 mm\u003cbr\u003e Length (in) 3 11\/16 in\u003cbr\u003e Weight (g) 128 g\u003cbr\u003e Weight (oz) 4.5 oz\u003cbr\u003e Clevis pin Ø (mm) 8 mm\u003cbr\u003e Clevis pin Ø (in) 5\/16 in\u003cbr\u003e Maximum line Ø (mm) 16 mm\u003cbr\u003e Maximum line Ø (in) 5\/8 in\u003cbr\u003e Maximum working load (kg) 850 kg\u003cbr\u003e Maximum working load (lb) 2100 lb\u003cbr\u003e Breaking load (kg) 1900 kg\u003cbr\u003e Breaking load (lb) 4190 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625613656401,"sku":"HKN-6065","price":85.76,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-57mm-aluminum-padeye-esp-block.jpg?v=1754725559"},{"product_id":"harken-57-mm-aluminum-low-load-mast-collar-esp-block-6-mm-clevis","title":"Harken 57 mm Aluminum Low-Load Mast Collar ESP Block — 6 mm Clevis","description":"\u003cp\u003eCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. \u003c\/p\u003e \u003cdiv id=\"gap-781708123\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 57 mm\u003cbr\u003e Sheave Ø (in) 2 1\/4 in\u003cbr\u003e Length (mm) 89 mm\u003cbr\u003e Length (in) 3 1\/2 in\u003cbr\u003e Weight (g) 113 g\u003cbr\u003e Weight (oz) 4 oz\u003cbr\u003e Clevis pin Ø (mm) 6 mm\u003cbr\u003e Clevis pin Ø (in) 1\/4 in\u003cbr\u003e Maximum line Ø (mm) 16 mm\u003cbr\u003e Maximum line Ø (in) 5\/8 in\u003cbr\u003e Maximum working load (kg) 748 kg\u003cbr\u003e Maximum working load (lb) 1650 lb\u003cbr\u003e Breaking load (kg) 1497 kg\u003cbr\u003e Breaking load (lb) 3300 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625614082385,"sku":"HKN-6095","price":77.96,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-57mm-aluminum-low-load-mast-collar-esp-block-6-mm-clevis.jpg?v=1754725563"},{"product_id":"harken-57-mm-aluminum-narrow-mast-collar-esp-block-6-mm-clevis","title":"Harken 57 mm Aluminum Narrow Mast Collar ESP Block — 6 mm Clevis","description":"\u003cp\u003eCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. \u003c\/p\u003e \u003cdiv id=\"gap-852775123\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 57 mm\u003cbr\u003e Sheave Ø (in) 2 1\/4 in\u003cbr\u003e Length (mm) 89 mm\u003cbr\u003e Length (in) 3 1\/2 in\u003cbr\u003e Width (mm) 59 mm\u003cbr\u003e Width (in) 2 5\/16 in\u003cbr\u003e Weight (g) 94 g\u003cbr\u003e Weight (oz) 3.3 oz\u003cbr\u003e Clevis pin Ø (mm) 6 mm\u003cbr\u003e Clevis pin Ø (in) 1\/4 in\u003cbr\u003e Maximum line Ø (mm) 10 mm\u003cbr\u003e Maximum line Ø (in) 3\/8 in\u003cbr\u003e Maximum working load (kg) 748 kg\u003cbr\u003e Maximum working load (lb) 1650 lb\u003cbr\u003e Breaking load (kg) 1497 kg\u003cbr\u003e Breaking load (lb) 3300 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625614115153,"sku":"HKN-6096","price":78.35,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-57mm-aluminum-narrow-mast-collar-esp-block-6-mm-clevis.jpg?v=1754725565"},{"product_id":"harken-57-mm-aluminum-narrow-mast-collar-esp-block-8-mm-clevis","title":"Harken 57 mm Aluminum Narrow Mast Collar ESP Block — 8 mm Clevis","description":"\u003cp\u003eCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. \u003c\/p\u003e \u003cdiv id=\"gap-1748962323\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 57 mm\u003cbr\u003e Sheave Ø (in) 2 1\/4 in\u003cbr\u003e Length (mm) 89 mm\u003cbr\u003e Length (in) 3 1\/2 in\u003cbr\u003e Width (mm) 59 mm\u003cbr\u003e Width (in) 2 5\/16 in\u003cbr\u003e Weight (g) 99 g\u003cbr\u003e Weight (oz) 3.5 oz\u003cbr\u003e Clevis pin Ø (mm) 8 mm\u003cbr\u003e Clevis pin Ø (in) 5\/16 in\u003cbr\u003e Maximum line Ø (mm) 10 mm\u003cbr\u003e Maximum line Ø (in) 3\/8 in\u003cbr\u003e Maximum working load (kg) 748 kg\u003cbr\u003e Maximum working load (lb) 1650 lb\u003cbr\u003e Breaking load (kg) 1497 kg\u003cbr\u003e Breaking load (lb) 3300 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625614246225,"sku":"HKN-6097","price":75.77,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-57mm-aluminum-narrow-mast-collar-esp-block-8-mm-clevis.jpg?v=1754725567"},{"product_id":"harken-75-mm-aluminum-narrow-mast-collar-esp-block","title":"Harken 75 mm Aluminum Narrow Mast Collar ESP Block","description":"\u003cp\u003eCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats \u003c\/p\u003e \u003cdiv id=\"gap-35029511\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 75 mm\u003cbr\u003e Sheave Ø (in) 3 in\u003cbr\u003e Length (mm) 113 mm\u003cbr\u003e Length (in) 4 7\/16 in\u003cbr\u003e Width (mm) 77 mm\u003cbr\u003e Width (in) 3 1\/32 in\u003cbr\u003e Weight (g) 181 g\u003cbr\u003e Weight (oz) 6.4 oz\u003cbr\u003e Clevis pin Ø (mm) 8 mm\u003cbr\u003e Clevis pin Ø (in) 5\/16 in\u003cbr\u003e Maximum line Ø (mm) 12 mm\u003cbr\u003e Maximum line Ø (in) 1\/2 in\u003cbr\u003e Maximum working load (kg) 1134 kg\u003cbr\u003e Maximum working load (lb) 2500 lb\u003cbr\u003e Breaking load (kg) 2268 kg\u003cbr\u003e Breaking load (lb) 5000 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625614344529,"sku":"HKN-6098","price":110.14,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-75mm-aluminum-narrow-mast-collar-esp-block.jpg?v=1754725568"},{"product_id":"harken-40-mm-aluminum-mast-collar-esp-block","title":"Harken 40 mm Aluminum Mast Collar ESP Block","description":"\u003cp\u003eCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. Use teardrop blocks for direct attachment to padeyes, mast collar posts, perforated mast collars, or in mastbase situations where leads might change. \u003c\/p\u003e \u003cdiv id=\"gap-969036199\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 40 mm\u003cbr\u003e Sheave Ø (in) 1 9\/16 in\u003cbr\u003e Length (mm) 65.5 mm\u003cbr\u003e Length (in) 2 19\/32 in\u003cbr\u003e Weight (g) 64 g\u003cbr\u003e Weight (oz) 2.2 oz\u003cbr\u003e Clevis pin Ø (mm) 6 mm\u003cbr\u003e Clevis pin Ø (in) 1\/4 in\u003cbr\u003e Maximum line Ø (mm) 12 mm\u003cbr\u003e Maximum line Ø (in) 1\/2 in\u003cbr\u003e Maximum working load (kg) 567 kg\u003cbr\u003e Maximum working load (lb) 1250 lb\u003cbr\u003e Breaking load (kg) 1134 kg\u003cbr\u003e Breaking load (lb) 2500 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625614639441,"sku":"HKN-6107","price":69.65,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-40mm-aluminum-mast-collar-esp-block.jpg?v=1754725571"},{"product_id":"harken-57-mm-stainless-steel-mastcollar-esp-block","title":"Harken 57 mm Stainless Steel Mastcollar ESP Block","description":"\u003cp\u003eCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. \u003c\/p\u003e \u003cdiv id=\"gap-994907566\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 57 mm\u003cbr\u003e Sheave Ø (in) 2 1\/4 in\u003cbr\u003e Length (mm) 93.5 mm\u003cbr\u003e Length (in) 3 11\/16 in\u003cbr\u003e Weight (g) 198 g\u003cbr\u003e Weight (oz) 7 oz\u003cbr\u003e Clevis pin Ø (mm) 8 mm\u003cbr\u003e Clevis pin Ø (in) 5\/16 in\u003cbr\u003e Maximum line Ø (mm) 16 mm\u003cbr\u003e Maximum line Ø (in) 5\/8 in\u003cbr\u003e Maximum working load (kg) 1000 kg\u003cbr\u003e Maximum working load (lb) 2205 lb\u003cbr\u003e Breaking load (kg) 2000 kg\u003cbr\u003e Breaking load (lb) 4409 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625624437073,"sku":"HKN-6069","price":297.47,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-57mm-stainless-steel-mastcollar-esp-block.jpg?v=1754725673"},{"product_id":"harken-75-mm-stainless-steel-mastcollar-esp-block","title":"Harken 75 mm Stainless Steel Mastcollar ESP Block","description":"\u003cp\u003eCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. \u003c\/p\u003e \u003cdiv id=\"gap-1615912348\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Specifications\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cp\u003eSheave Ø (mm) 75 mm\u003cbr\u003e Sheave Ø (in) 3 in\u003cbr\u003e Length (mm) 117 mm\u003cbr\u003e Length (in) 4 5\/8 in\u003cbr\u003e Weight (g) 454 g\u003cbr\u003e Weight (oz) 16 oz\u003cbr\u003e Clevis pin Ø (mm) 8 mm\u003cbr\u003e Clevis pin Ø (in) 5\/16 in\u003cbr\u003e Maximum line Ø (mm) 19 mm\u003cbr\u003e Maximum line Ø (in) 3\/4 in\u003cbr\u003e Maximum working load (kg) 1361 kg\u003cbr\u003e Maximum working load (lb) 3000 lb\u003cbr\u003e Breaking load (kg) 2722 kg\u003cbr\u003e Breaking load (lb) 6000 lb\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":51625624830289,"sku":"HKN-6073","price":342.14,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/www.sailrace.com-harken-75mm-stainless-steel-mastcollar-esp-block.jpg?v=1754725681"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/collections\/Mastbase_Blocks.webp?v=1768306325","url":"https:\/\/www.sailrace.com\/ru-caucasus\/collections\/harken-mastbase-blocks.oembed","provider":"SailRACE","version":"1.0","type":"link"}