{"title":"Backstay Tensioners and Spare Parts","description":"\u003cp\u003eFine-tune mast bend and forestay tension with Seldén backstay tensioners. This collection includes complete tensioners, clevis pins, and original service kits like gearbox halves and bearing repair sets. Built for strength and precision, these components ensure reliable load control for cruisers and racers using Seldén rigging systems.\u003c\/p\u003e","products":[{"product_id":"clevis-pin-o11x40-mm-aisi316-stainless-for-backstay-tensioner","title":"Clevis Pin ø11x40 mm, AISI316 Stainless, For Backstay Tensioner","description":"\u003cp\u003eIncluded in backstay tensioners and halyard tensioner Art. No. 174-601-01, 174-601-02 and 174-601-03.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDiameter\u003c\/b\u003e: 11.00 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Mast AB","offers":[{"title":"Default Title","offer_id":52634710409549,"sku":"168-019","price":85.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/5701\/8445\/files\/index_2c1c7b38-d8bf-4087-b45c-2fd1ef7e222d.png?v=1761136004"},{"product_id":"clevis-pin-o15-8x38-mm-aisi316-stainless-for-backstay-tensioner","title":"Clevis Pin ø15,8x38 mm, AISI316 Stainless, For Backstay Tensioner","description":"\u003cp\u003eIncluded in backstay tensioners and halyard tensioner Art. No. 174-601-01, 174-601-02 and 174-601-03.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDiameter\u003c\/b\u003e: 15.80 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eImperial diam\u003c\/b\u003e: 5\/8\" \u003cem\u003einch\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eLength\u003c\/b\u003e: 8 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Mast AB","offers":[{"title":"Default Title","offer_id":52634710442317,"sku":"168-021","price":158.75,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/5701\/8445\/files\/index_debc852b-e7d8-4f06-9218-f5286e1268db.png?v=1761136006"},{"product_id":"backstay-tensioner518-768mm","title":"BACKSTAY TENSIONER(518\/768mm)","description":"\u003cp\u003eSeldén backstay tensioners have smooth, clean surfaces. Even the wire terminal is fully covered. These low-weight backstay tensioners are simple to use. All you do is insert a standard winch handle and turn. The tensioner has a maximum working load of 30 kN. The stroke with this tensioner of standard length is 250 mm.\u003c\/p\u003e\u003cp\u003eClevis pins and bushes are supplied with every adjuster to suit small chainplates for Ø 6 and Ø 7 mm wire.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eWire Size ø\u003c\/b\u003e: 6,7,8 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003ePin\u003c\/b\u003e: 15.80 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eStroke\u003c\/b\u003e: 250 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eLength min\u003c\/b\u003e: 518 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eLength max\u003c\/b\u003e: 768 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBRL\u003c\/b\u003e: 6500 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eSWL\u003c\/b\u003e: 3000 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Mast AB","offers":[{"title":"Default Title","offer_id":52634740523341,"sku":"174-601-01","price":13961.25,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/5701\/8445\/files\/index_1fa1d5e1-ead5-45ef-8ce3-9a98ef9aaaab.jpg?v=1781100669"},{"product_id":"backstay-tensioner818-1218mm","title":"BACKSTAY TENSIONER(818\/1218MM)","description":"\u003cp\u003eSeldén backstay tensioners have smooth, clean surfaces. Even the wire terminal is fully covered. These low-weight backstay tensioners are simple to use. All you do is insert a standard winch handle and turn. The tensioner has a maximum working load of 30 kN. The stroke for this tensioner is 400 mm.\u003c\/p\u003e\u003cp\u003eClevis pins and bushes are supplied with every adjuster to suit small chainplates for Ø 6 and Ø 7 mm wire.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eWire Size ø\u003c\/b\u003e: 6,7,8 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003ePin\u003c\/b\u003e: 15.80 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eStroke\u003c\/b\u003e: 400 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eLength min\u003c\/b\u003e: 818 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eLength max\u003c\/b\u003e: 1218 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eBRL\u003c\/b\u003e: 6500 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eSWL\u003c\/b\u003e: 3000 \u003cem\u003ekg\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Mast AB","offers":[{"title":"Default Title","offer_id":52634740785485,"sku":"174-601-02","price":15802.5,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/5701\/8445\/files\/index_36b16215-187f-4cdb-87d9-3b9759660596.jpg?v=1781100671"},{"product_id":"bearing-repair-kit-backstay-halyard-tensioner-174-601","title":"Bearing repair kit, Backstay\/Halyard tensioner 174-601-","description":"\u003cp\u003eIncludes Bearing (174-612), 2 washer (174-615), flange bush (306-561) and lip seal (174-617). \u003c\/p\u003e\u003cp\u003eSpareparts list:\u003c\/p\u003e\u003cp\u003e\u003ca target=\"support\" href=\"https:\/\/support.seldenmast.com\/files\/1669648602\/595-303-E.pdf\"\u003ehttps:\/\/support.seldenmast.com\/files\/1669648602\/595-303-E.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Selden Mast AB","offers":[{"title":"Default Title","offer_id":52634740818253,"sku":"174-612-01","price":558.75,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/5701\/8445\/files\/index_da1cfc17-1736-4f7e-92b5-9e47447c9b79.jpg?v=1774270270"},{"product_id":"gearbox-halves-replacement-kit-for-backstay-halyard-tensioner-174-601","title":"Gearbox halves - Replacement kit for Backstay\/Halyard tensioner 174-601-","description":"\u003cp\u003eIncludes 2 gearbox halves. \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eSpareparts list:\u003c\/p\u003e\u003cp\u003e\u003ca target=\"support\" href=\"https:\/\/support.seldenmast.com\/files\/1669648602\/595-303-E.pdf\"\u003ehttps:\/\/support.seldenmast.com\/files\/1669648602\/595-303-E.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Selden Mast AB","offers":[{"title":"Default Title","offer_id":52634740851021,"sku":"174-618-01","price":2358.75,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/5701\/8445\/files\/index_eef67dd5-66b3-4da6-ba9a-05313bea1bdd.jpg?v=1761136779"},{"product_id":"bevel-gear-replacement-kit-for-backstay-tensioner","title":"Bevel gear replacement kit for backstay tensioner","description":"\u003cp\u003eSpare bevel gear for Seldén backstay tensioners 174-601-01\/-02 and halyard tensioner 174-601-03.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Selden Mast AB","offers":[{"title":"Default Title","offer_id":52634769686861,"sku":"320-007-01","price":2605.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/5701\/8445\/files\/index_182b0dfc-021c-44f6-aed2-d8086aa7d0a0.jpg?v=1761137264"},{"product_id":"hydraulic-tensioner-integral-hti-for-o12-14-mm-backstay-clear-anodized","title":"Hydraulic Tensioner Integral (HTI), for ø12-14 mm backstay, Clear anodized","description":"\u003cp\u003eBackstay adjuster, model HTI\u003c\/p\u003e\u003cp\u003e”HTI” stands for ”Hydraulic Tensioner Integral” and means that the closed hydraulic system is  completely integrated into the cylinder and the pump handle is on the product itself. For this tensioner, nothing more is needed. Just choose the right size and suitable connection for your backstay.  You may need to adjust the length of your backstay wire. Check that the clevis pin at the lower end of the tensioner fits your chainplate.\u003c\/p\u003e\u003cp\u003eClear anodized aluminium (\"silver\").\u003c\/p\u003e\u003cp\u003e\u003ca href=\"Learn%20more%20about%20our%20hydraulic%20trim%20functions\"\u003eLearn more about our hydraulic trim functions\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/support.seldenmast.com\/files\/1442822524\/597-071-E.pdf\"\u003eManual for operation\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eUpper Terminal\u003c\/b\u003e: stud \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eSubType\u003c\/b\u003e: HTI-W12\/14 \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eColor\u003c\/b\u003e: silver \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eThread size\u003c\/b\u003e: 7\/8\"-LH \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003ePin diam\u003c\/b\u003e: 22 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eLength min\u003c\/b\u003e: 1156 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eLength max\u003c\/b\u003e: 1636 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eWCLReduct\u003c\/b\u003e: 1540 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax Wire Size\u003c\/b\u003e: 14 \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax Rode Size\u003c\/b\u003e: -40 \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eStroke\u003c\/b\u003e: 480 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eX\u003c\/b\u003e: 30 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Mast AB","offers":[{"title":"Default Title","offer_id":54920238596429,"sku":"580-005-10","price":50220.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/5701\/8445\/files\/index_f2e0ca79-3e61-4f14-83ed-9fd15d0e6882.jpg?v=1790842260"},{"product_id":"hydraulic-tensioner-integral-hti-for-o12-14-mm-backstay-black-anodized","title":"Hydraulic Tensioner Integral (HTI), for ø12-14 mm backstay, Black anodized","description":"\u003cp\u003eBackstay adjuster, model HTI\u003c\/p\u003e\u003cp\u003e”HTI” stands for ”Hydraulic Tensioner Integral” and means that the closed hydraulic system is  completely integrated into the cylinder and the pump handle is on the product itself. For this tensioner, nothing more is needed. Just choose the right size and suitable connection for your backstay.  You may need to adjust the length of your backstay wire. Check that the clevis pin at the lower end of the tensioner fits your chainplate.\u003c\/p\u003e\u003cp\u003eBlack anodized aluminium.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/support.seldenmast.com\/files\/1749128352\/597-107-E.pdf\"\u003eLearn more about our hydraulic trim functions\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/support.seldenmast.com\/files\/1442822524\/597-071-E.pdf\"\u003eManual for operation\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eUpper Terminal\u003c\/b\u003e: stud \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eSubType\u003c\/b\u003e: HTI-W12\/14 \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eColor\u003c\/b\u003e: black \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eThread size\u003c\/b\u003e: 7\/8\"-LH \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003ePin diam\u003c\/b\u003e: 22 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eLength min\u003c\/b\u003e: 1156 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eLength max\u003c\/b\u003e: 1636 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eWCLReduct\u003c\/b\u003e: 1540 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax Wire Size\u003c\/b\u003e: 14 \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax Rode Size\u003c\/b\u003e: -40 \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eStroke\u003c\/b\u003e: 480 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eX\u003c\/b\u003e: 30 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Mast AB","offers":[{"title":"Default Title","offer_id":54920238793037,"sku":"580-006-10","price":50220.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/5701\/8445\/files\/index_aae3d58d-6f05-426c-9649-1caa1a5a027d.jpg?v=1790841960"},{"product_id":"hydraulic-tensioner-integral-hti-for-o8-10-mm-backstay-clear-1","title":"Hydraulic Tensioner Integral (HTI), for ø8-10 mm backstay, Clear","description":"\u003cp\u003eBackstay adjuster, model HTI\u003c\/p\u003e\u003cp\u003e”HTI” stands for ”Hydraulic Tensioner Integral” and means that the closed hydraulic system is  completely integrated into the cylinder and the pump handle is on the product itself. For this tensioner, nothing more is needed. Just choose the right size and suitable connection for your backstay.  You may need to adjust the length of your backstay wire. Check that the clevis pin at the lower end of the tensioner fits your chainplate.\u003c\/p\u003e\u003cp\u003eClear anodized aluminium (\"silver\").\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/support.seldenmast.com\/files\/1749128352\/597-107-E\"\u003eLearn about our hydraulic trim functions\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/support.seldenmast.com\/files\/1442822524\/597-071-E.pdf\"\u003eManual for operation\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eUpper Terminal\u003c\/b\u003e: stud \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eSubType\u003c\/b\u003e: HTI-W8\/10 \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eColor\u003c\/b\u003e: silver \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003ePin diam\u003c\/b\u003e: 16 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax Wire Size\u003c\/b\u003e: 10 \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eStroke\u003c\/b\u003e: 420 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Mast AB","offers":[{"title":"Default Title","offer_id":54920539734349,"sku":"580-050-10","price":36217.5,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/5701\/8445\/files\/index_3c8f2ffb-620e-4f91-8b20-3498eccb2e87.jpg?v=1790861464"},{"product_id":"hydraulic-tensioner-integral-hti-for-o8-10-mm-backstay-black","title":"Hydraulic Tensioner Integral (HTI), for ø8-10 mm backstay, Black","description":"\u003cp\u003eBackstay adjuster, model HTI\u003c\/p\u003e\u003cp\u003e”HTI” stands for ”Hydraulic Tensioner Integral” and means that the closed hydraulic system is  completely integrated into the cylinder and the pump handle is on the product itself. For this tensioner, nothing more is needed. Just choose the right size and suitable connection for your backstay.  You may need to adjust the length of your backstay wire. Check that the clevis pin at the lower end of the tensioner fits your chainplate.\u003c\/p\u003e\u003cp\u003eBlack anodized aluminium.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/support.seldenmast.com\/files\/1749128352\/597-107-E.pdf\"\u003eLearn about our hydraulic trim functions\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/support.seldenmast.com\/files\/1442822524\/597-071-E.pdf\"\u003eManual for operation\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cb\u003eUpper Terminal\u003c\/b\u003e: stud \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eSubType\u003c\/b\u003e: HTI-W8\/10 \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eColor\u003c\/b\u003e: black \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003ePin diam\u003c\/b\u003e: 16 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eMax Wire Size\u003c\/b\u003e: 10 \u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\u003cb\u003eStroke\u003c\/b\u003e: 420 \u003cem\u003emm\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Selden Mast AB","offers":[{"title":"Default Title","offer_id":54920539767117,"sku":"580-051-10","price":36217.5,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/5701\/8445\/files\/index_99f7dd1a-baaf-471f-a6fc-6c88c709f093.jpg?v=1790861462"}],"url":"https:\/\/shop.seldenmast.com\/collections\/rig-hardware-backstay-tensioner.oembed","provider":"Seldén Yacht Store SE","version":"1.0","type":"link"}