{"id":1695,"date":"2026-01-02T15:35:27","date_gmt":"2026-01-02T15:35:27","guid":{"rendered":"https:\/\/gelmersmotorsport.com\/?page_id=1695"},"modified":"2026-01-02T15:39:39","modified_gmt":"2026-01-02T15:39:39","slug":"yamaha-yfzr-ktm-450sxf-ombouw-2","status":"publish","type":"page","link":"https:\/\/gelmersmotorsport.com\/en_gb\/yamaha-yfzr-ktm-450sxf-ombouw-2\/","title":{"rendered":"Yamaha YfzR\/Ktm 450sxf Conversion"},"content":{"rendered":"<p>Gelmersmotorsport has developed a conversion based on a YFZ450R, making it possible to install modern KTM motocross engines.<\/p>\n\n\n\n<p>The conversion kit is available for the following KTM motorcycle years:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2018 &#8211; 2022 KTM\/Husqvarna\/GasGas 450<\/li>\n\n\n\n<li>2023+ KTM\/Husqvarna\/GasGas 450 <\/li>\n<\/ul>\n\n\n\n<p>Some modifications to the original frame are necessary. The mounting point for the original cylinder head bracket needs to be adjusted. For engines from 2023 and newer, these modifications are more intensive, and we recommend having them done by us.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142124-rotated.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" data-id=\"1698\" src=\"https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142124-768x1024.jpg\" alt=\"\" class=\"wp-image-1698\" srcset=\"https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142124-768x1024.jpg 768w, https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142124-225x300.jpg 225w, https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142124-9x12.jpg 9w, https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142124-rotated.jpg 1000w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142222-rotated.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" data-id=\"1697\" src=\"https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142222-768x1024.jpg\" alt=\"\" class=\"wp-image-1697\" srcset=\"https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142222-768x1024.jpg 768w, https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142222-225x300.jpg 225w, https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142222-9x12.jpg 9w, https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142222-rotated.jpg 1000w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142245-rotated.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" data-id=\"1699\" src=\"https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142245-768x1024.jpg\" alt=\"\" class=\"wp-image-1699\" srcset=\"https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142245-768x1024.jpg 768w, https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142245-225x300.jpg 225w, https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142245-9x12.jpg 9w, https:\/\/gelmersmotorsport.com\/wp-content\/uploads\/2026\/01\/20240327_142245-rotated.jpg 1000w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>The base conversion kit will contain the following:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Engine Mounts<\/li>\n\n\n\n<li>Gelmersmotorsport swingarm<\/li>\n\n\n\n<li>Engine Case bushing<\/li>\n<\/ul>\n\n\n\n<p>The conversion kit can be expanded with a Gelmersmotorsport replacement underframe rail. Valued at \u20ac765, it comes pre-installed with the matching mounting points. A nice upgrade to replace the often heavily loaded and poor quality standard underframe rail. <\/p>\n\n\n\n<p>Conversion kit prices start from \u20ac1431 excluding TAX.<\/p>\n\n\n\n<p>A fully serviced conversion is available upon request. For more information or questions, please feel free to send a message via the contact page.<\/p>","protected":false},"excerpt":{"rendered":"<p>Gelmersmotorsport heeft een ombouw ontwikkeld op basis van een Yfz450r, waardoor het mogelijk wordt gemaakt om de moderne motorcrossblokken van ktm te monteren. De ombouwkit is beschikbaar voor de volgende bouwjaren ktm motor: Enkele modificaties aan het originele frame zijn noodzakelijk. Het montage punt voor de originele cilinderkop steun moet [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1701,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-1695","page","type-page","status-publish","has-post-thumbnail","hentry"],"aioseo_notices":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/gelmersmotorsport.com\/en_gb\/wp-json\/wp\/v2\/pages\/1695","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gelmersmotorsport.com\/en_gb\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/gelmersmotorsport.com\/en_gb\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/gelmersmotorsport.com\/en_gb\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/gelmersmotorsport.com\/en_gb\/wp-json\/wp\/v2\/comments?post=1695"}],"version-history":[{"count":3,"href":"https:\/\/gelmersmotorsport.com\/en_gb\/wp-json\/wp\/v2\/pages\/1695\/revisions"}],"predecessor-version":[{"id":1704,"href":"https:\/\/gelmersmotorsport.com\/en_gb\/wp-json\/wp\/v2\/pages\/1695\/revisions\/1704"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gelmersmotorsport.com\/en_gb\/wp-json\/wp\/v2\/media\/1701"}],"wp:attachment":[{"href":"https:\/\/gelmersmotorsport.com\/en_gb\/wp-json\/wp\/v2\/media?parent=1695"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}