{"id":92152,"date":"2026-07-03T15:07:04","date_gmt":"2026-07-03T07:07:04","guid":{"rendered":"https:\/\/www.motomaxsfr.com\/?p=92152"},"modified":"2026-07-03T15:07:06","modified_gmt":"2026-07-03T07:07:06","slug":"chaines-40-41-et-420-fin-des-ruptures-de-chaine-sur-les-transmissions-de-karting","status":"publish","type":"post","link":"https:\/\/www.motomaxsfr.com\/fr\/chaines-40-41-et-420-fin-des-ruptures-de-chaine-sur-les-transmissions-de-karting\/","title":{"rendered":"Cha\u00eenes 40, 41 et 420 : finies les ruptures de transmission sur les karts"},"content":{"rendered":"<div class=\"wp-block-themepark-block-themepark-wright content-super-p  blog-jiange\" style=\"font-size:17px;line-height:28px;color:#585a5e;padding:10px 20px;\">\n<div class=\"wp-block-column\">\n<p class=\"wp-block-paragraph\">La diff\u00e9rence exacte entre les cha\u00eenes 40, 41 et 420 r\u00e9side dans la largeur int\u00e9rieure et le diam\u00e8tre des rouleaux, bien que les trois partagent un pas standard de 1\/2 pouce. Une cha\u00eene 40 pr\u00e9sente une largeur int\u00e9rieure de 5\/16\u2033 et des rouleaux de 5\/16\u2033 ; une cha\u00eene 41 se r\u00e9tr\u00e9cit pour atteindre une largeur de 1\/4\u2033 avec des rouleaux plus petits de 0,306\u2033 ; et une cha\u00eene 420 conserve la largeur \u00e9troite de 1\/4\u2033 de la 41, mais int\u00e8gre les rouleaux plus grands de 5\/16\u2033 et les axes plus \u00e9pais de la 40. Les constructeurs endommagent constamment les transmissions de karts en supposant que ces cha\u00eenes sont interchangeables simplement parce que leur pas correspond. Utiliser une cha\u00eene de type 41 sur un pignon de type 420 provoquera la rupture imm\u00e9diate des rouleaux, tandis qu\u2019utiliser une cha\u00eene de type 420 sur un pignon de type 40 entra\u00eenera un grippage lat\u00e9ral important. Nous allons analyser en d\u00e9tail la g\u00e9om\u00e9trie m\u00e9canique de ces trois cha\u00eenes, mettre en \u00e9vidence le \u201c pi\u00e8ge de l\u2019\u00e9paisseur du pignon \u201d qui peut s\u2019av\u00e9rer fatal, et fournir un cadre de r\u00e9f\u00e9rence d\u00e9finitif pour dimensionner votre transmission en vue d\u2019un remplacement de moteur \u00e0 couple \u00e9lev\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L'illusion du pas de 1\/2 pouce : pourquoi ces pi\u00e8ces ne sont PAS interchangeables<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L'ajustement du pas de la cha\u00eene n'est que la premi\u00e8re \u00e9tape du montage de la transmission. Un pas de 1\/2 pouce signifie simplement que la distance entre les axes centraux est exactement d'un demi-pouce sur les s\u00e9ries 40, 41 et 420. C'est lorsque les constructeurs n\u00e9gligent les cotes internes qu'une erreur technique fatale se produit.<\/p>\n\n\n\n<iframe loading=\"lazy\" width=\"657\" height=\"392\" src=\"https:\/\/www.youtube.com\/embed\/2ocPc3pZmMA\" title=\"Dimensionnement de la cha\u00eene et du pignon d&#039;un robot \u00e0 entra\u00eenement par chenilles : #41 vs #40\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n\n\n\n<h3 class=\"wp-block-heading\">Le \u201c pi\u00e8ge de l'\u00e9paisseur du pignon \u201d (pi\u00e8ge pour les experts)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Une d\u00e9faillance de la transmission survient rapidement lorsque l'on associe des largeurs int\u00e9rieures incompatibles \u00e0 une \u00e9paisseur de pignon inadapt\u00e9e. Un pignon 40 mesure environ 0,284 pouce d\u2019\u00e9paisseur. Si vous forcez une cha\u00eene 41 ou 420 de 1\/4 pouce de largeur sur un pignon 40, les maillons int\u00e9rieurs frotteront violemment contre les dents du pignon. La cha\u00eene chauffera, s\u2019\u00e9tirera et se rompra en quelques minutes. \u00c0 l'inverse, enrouler une cha\u00eene 40 plus large autour d'un pignon 420 plus fin permet \u00e0 la cha\u00eene de d\u00e9vier d'un c\u00f4t\u00e9 \u00e0 l'autre, provoquant de violentes vibrations lat\u00e9rales \u00e0 haut r\u00e9gime qui finiront par cisailler la rainure de l'embrayage centrifuge.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Cha\u00eene 40 vs 420 : la puissance industrielle contre l'agilit\u00e9 des sports motoris\u00e9s<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour comparer les cha\u00eenes 40 et 420, il faut tenir compte de leurs applications industrielles respectives plut\u00f4t que de se limiter \u00e0 leur r\u00e9sistance \u00e0 la traction.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Diff\u00e9rences dimensionnelles et adaptation des pignons<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La cha\u00eene 40 est une norme industrielle con\u00e7ue pour les \u00e9quipements agricoles et industriels lourds fonctionnant \u00e0 faible vitesse. Elle se caract\u00e9rise par un \u00e9cartement interne large de 5\/16\u2033. La cha\u00eene 420 est une norme du secteur des sports motoris\u00e9s, sp\u00e9cialement con\u00e7ue pour les motos et les karts \u00e0 grande vitesse ; elle pr\u00e9sente un espacement interne plus \u00e9troit de 1\/4\u2033. Comme les deux cha\u00eenes utilisent exactement le m\u00eame diam\u00e8tre de rouleau (5\/16\u2033, soit 0,312\u2033), elles s'enfoncent \u00e0 la m\u00eame profondeur dans les creux des pignons. Techniquement, il est possible d\u2019utiliser une cha\u00eene 40 sur un pignon 420 en cas d\u2019urgence sur la route, mais le jeu lat\u00e9ral important de 1\/16\u2033 entra\u00eenera une usure rapide des dents du pignon.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Mod\u00e8le de cha\u00eene<\/td><td>Pitch<\/td><td>Diam\u00e8tre du rouleau<\/td><td>Largeur int\u00e9rieure<\/td><td>R\u00e9sistance \u00e0 la traction moyenne<\/td><\/tr><tr><td><strong>40<\/strong><\/td><td>0,500\u2033 (12,70 mm)<\/td><td>\ud83d\udd34&nbsp;<strong>0,312 pouce (7,92 mm)<\/strong><\/td><td>\ud83d\udd34&nbsp;<strong>0,312 pouce (7,95 mm)<\/strong><\/td><td>\ud83d\udd34 ~ 3 700 \u2013 4 200 livres<\/td><\/tr><tr><td><strong>41<\/strong><\/td><td>0,500\u2033 (12,70 mm)<\/td><td>\ud83d\udd34&nbsp;<strong>0,306 pouce (7,77 mm)<\/strong><\/td><td>\ud83d\udd34&nbsp;<strong>0,250\u2033 (6,35 mm)<\/strong><\/td><td>\ud83d\udd34 ~ 2 000 \u2013 2 800 livres<\/td><\/tr><tr><td><strong>420<\/strong><\/td><td>0,500\u2033 (12,70 mm)<\/td><td>\ud83d\udd34&nbsp;<strong>0,306 pouce (7,77 mm)<\/strong><\/td><td>\ud83d\udd34&nbsp;<strong>0,250\u2033 (6,35 mm)<\/strong><\/td><td>\ud83d\udd34 ~ 3 700 \u2013 4 100 livres<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Cha\u00eene 41 contre 420 : la bataille des largeurs r\u00e9duites<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsqu\u2019ils comparent les cha\u00eenes 41 et 420, les constructeurs ont affaire \u00e0 deux cha\u00eenes qui partagent exactement la m\u00eame largeur int\u00e9rieure de 1\/4\u2033. Cependant, leurs profils de r\u00e9sistance physique sont aux antipodes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Diam\u00e8tre des rouleaux et cisaillement des goupilles<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La cha\u00eene 41 est le maillon faible de la gamme \u00e0 pas de 1\/2 pouce. Elle utilise un rouleau plus petit (0,306 pouce) et des plaques lat\u00e9rales plus fines, ce qui lui conf\u00e8re une r\u00e9sistance \u00e0 la traction moyenne de seulement 2 000 livres. La cha\u00eene 420 est \u00e9quip\u00e9e d\u2019un rouleau de 5\/16\u2033 (0,312\u2033) et utilise de l\u2019acier de plus forte \u00e9paisseur pour les axes, ce qui porte la r\u00e9sistance \u00e0 la traction \u00e0 plus de 3 700 livres. Si vous montez une cha\u00eene 41 sur un pignon 420, les rouleaux plus petits se trouveront trop haut sur les dents du pignon (non-respect du jeu par rapport \u00e0 la ligne de pas). Cela concentre tout le couple moteur sur les pointes des dents du pignon, les transformant en \u201c \u00e9toiles de ninja \u201d ac\u00e9r\u00e9es avant que la cha\u00eene ne se rompe.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00c9tude de cas pratique : conversion du Predator 212 cm\u00b3 en configuration \u00ab Stage 2 \u00bb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lors d'essais sur circuit r\u00e9alis\u00e9s en 2024 avec des mini-motos modifi\u00e9es, des m\u00e9canos amateurs ont constat\u00e9 \u00e0 plusieurs reprises des d\u00e9faillances de la transmission apr\u00e8s avoir modifi\u00e9 leurs moteurs de s\u00e9rie de 6,5 HP. Une Predator 212 cm\u00b3 de s\u00e9rie fonctionne parfaitement avec une cha\u00eene l\u00e9g\u00e8re #41. Cependant, l\u2019installation d\u2019un kit Stage 2 (bielle usin\u00e9e, ressorts de soupapes plus r\u00e9sistants, arbre \u00e0 cames haute performance) fait passer la puissance au-del\u00e0 de 9 HP et augmente consid\u00e9rablement la courbe de couple. Les cha\u00eenes de calibre 41 se rompaient syst\u00e9matiquement lors d\u2019acc\u00e9l\u00e9rations brusques. Le remplacement de l\u2019embrayage, du pignon arri\u00e8re et de la cha\u00eene par un ensemble d\u00e9di\u00e9 de calibre 420 a permis d\u2019\u00e9liminer compl\u00e8tement les d\u00e9faillances de la transmission sans avoir \u00e0 recourir \u00e0 la largeur encombrante d\u2019un ensemble industriel de calibre 40.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Cadre de s\u00e9lection des groupes motopropulseurs R.T.S. (mod\u00e8le d'expert)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ne vous fiez plus \u00e0 vos impressions dans les magasins de bricolage. J'ai d\u00e9velopp\u00e9 le R.T.S. Framework pour garantir une g\u00e9om\u00e9trie de transmission irr\u00e9prochable pour les karts et les mini-motos sur mesure.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>R \u2013 Diam\u00e8tre du rouleau :<\/strong>\u00a0V\u00e9rifiez le logement du galet. Mesurez la rainure de votre pignon. Si celle-ci est pr\u00e9vue pour un galet de 0,306\u2033, vous devez utiliser une cha\u00eene de calibre 41. Si elle est pr\u00e9vue pour un galet de 5\/16\u2033, votre choix se limite aux calibres 40 ou 420.<\/li>\n\n\n\n<li><strong>T \u2013 Charge de traction :<\/strong>\u00a0Calculez la puissance de votre moteur. Les moteurs d'une puissance inf\u00e9rieure \u00e0 7 HP peuvent utiliser la cha\u00eene 41 en toute s\u00e9curit\u00e9. Les configurations d'une puissance sup\u00e9rieure \u00e0 8 HP ou \u00e9quip\u00e9es de convertisseurs de couple (CVT) n\u00e9cessitent l'utilisation des cha\u00eenes 420 ou 40, dot\u00e9es de maillons plus r\u00e9sistants, afin de supporter les charges dynamiques de choc.<\/li>\n\n\n\n<li><strong>S \u2013 \u00c9paisseur du pignon :<\/strong>\u00a0Mesurez les dents du pignon \u00e0 l'aide d'un pied \u00e0 coulisse num\u00e9rique. Un pignon d'une \u00e9paisseur d'environ 0,227\u2033 n\u00e9cessite une cha\u00eene de calibre 41 ou 420. Un pignon d'une \u00e9paisseur d'environ 0,284\u2033 exige imp\u00e9rativement une cha\u00eene de calibre 40 afin d'\u00e9viter tout frottement contre les flasques.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img width=\"1024\" height=\"576\" data-public-id=\"image-411\/image-411.png\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/w_1024,h_576,c_scale\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA\" alt=\"\" class=\"wp-post-92152 wp-image-92759\" data-transformation-crop=\"w_1024,h_576,c_scale\" data-format=\"png\" data-transformations=\"f_auto,q_auto\" data-version=\"1783087120\" data-seo=\"1\" data-responsive=\"1\" srcset=\"https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/w_1024,h_576,c_scale\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA 1672w, https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/w_1648,h_927,c_scale\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA 1648w, https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/w_1448,h_814,c_scale\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA 1448w, https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/w_1248,h_702,c_scale\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA 1248w, https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/w_1048,h_589,c_scale\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA 1048w, https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/w_848,h_477,c_scale\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA 848w, https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/w_648,h_364,c_scale\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA 648w, https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/w_448,h_252,c_scale\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA 448w, https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/w_248,h_139,c_scale\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA 248w\" sizes=\"(max-width: 1672px) 100vw, 1672px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Questions fr\u00e9quentes (FAQ)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q : Une cha\u00eene de calibre 420 peut-elle s'adapter \u00e0 un pignon de 40 ?<\/strong><br>Non. Une cha\u00eene de type 420 a une largeur int\u00e9rieure de 1\/4 de pouce, tandis qu\u2019un pignon de type 40 mesure environ 5\/16 de pouce d\u2019\u00e9paisseur. La cha\u00eene 420 est trop \u00e9troite et ne pourra physiquement pas s\u2019enrouler autour des dents d\u2019un pignon de type 40. Si vous forcez, cela provoquera imm\u00e9diatement un grippage de la transmission.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q : Peut-on utiliser un maillon de raccord de 40 sur une cha\u00eene de 420 ?<\/strong><br>Non. M\u00eame si le diam\u00e8tre des goupilles peut sembler similaire, celles d'un maillon de jonction de type 40 sont nettement plus longues afin de s'adapter \u00e0 l'\u00e9cartement int\u00e9rieur plus large (5\/16\u2033) de la cha\u00eene de type 40. Si ce maillon est utilis\u00e9 sur une cha\u00eene de type 420, le clip de retenue ne sera pas \u00e0 fleur de la plaque lat\u00e9rale, ce qui entra\u00eenera le d\u00e9tachement du maillon de jonction sous l'effet des vibrations pendant le fonctionnement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q : La cha\u00eene 428 est-elle identique \u00e0 la 420 ?<\/strong><br>Non. Bien qu\u2019il s\u2019agisse dans les deux cas de cha\u00eenes pour sports m\u00e9caniques avec un pas de 1\/2 pouce, la cha\u00eene 428 pr\u00e9sente une largeur int\u00e9rieure plus importante (5\/16\u2033) et utilise des rouleaux d\u2019un diam\u00e8tre nettement plus grand (0,335\u2033). Une cha\u00eene 428 ne s\u2019engr\u00e8ne pas correctement avec un pignon 420.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q : Pourquoi la cha\u00eene de mon kart ne cesse-t-elle pas de d\u00e9railler ?<\/strong><br>Les cha\u00eenes d\u00e9raillent pour trois raisons principales : un d\u00e9salignement important des pignons (l'embrayage et le pignon arri\u00e8re ne sont pas parfaitement parall\u00e8les), une cha\u00eene mal tendue pr\u00e9sentant trop de jeu, ou l'utilisation d'une combinaison cha\u00eene-pignon inadapt\u00e9e (comme l'utilisation d'une cha\u00eene large de calibre 40 sur un pignon fin de calibre 420).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q : Quelle est la meilleure cha\u00eene pour un convertisseur de couple (TAV2) ?<\/strong><br>Les convertisseurs de couple g\u00e9n\u00e8rent une multiplication de couple initiale tr\u00e8s importante. N'utilisez pas de cha\u00eene de calibre 41 avec un syst\u00e8me CVT, car l'engagement brusque risquerait d'\u00e9tirer les axes fins. Pr\u00e9voyez toujours une cha\u00eene de calibre 420 ou 40 et un pignon adapt\u00e9 lorsque vous utilisez un convertisseur de couple de la s\u00e9rie 30 ou 40.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q : Comment faire la diff\u00e9rence entre une cha\u00eene de 40 et une de 420 ?<\/strong><br>Regardez la largeur. Si vous les placez c\u00f4te \u00e0 c\u00f4te sur un \u00e9tabli, la cha\u00eene 40 est nettement plus large. Mesurez l'\u00e9cart int\u00e9rieur entre les plaques int\u00e9rieures : celui de la cha\u00eene 420 est de 1\/4\u2033, tandis que celui de la cha\u00eene 40 est de 5\/16\u2033.<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":4,"featured_media":92759,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"themepark_post_bcolor":"#f5f5f5","themepark_post_width":"1022px","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":false,"themepark_post_main_b":"","themepark_post_main_p":100,"themepark_paddingblock":false,"_cloudinary_featured_overwrite":false,"footnotes":""},"categories":[1,1017],"tags":[],"class_list":["post-92152","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","category-news-article"],"metadata":{"_edit_lock":["1783317338:4"],"_wp_attachment_metadata":[""],"rank_math_seo_score":["10"],"_edit_last":["4"],"_ez-toc-disabled":[""],"_ez-toc-insert":[""],"_ez-toc-header-label":[""],"_ez-toc-device-target":[""],"_ez-toc-alignment":["none"],"_ez-toc-heading-levels":["a:0:{}"],"_ez-toc-alttext":[""],"_ez-toc-visibility_hide_by_default":[""],"_ez-toc-hide_counter":[""],"_ez-toc-exclude":[""],"_ez-toc-position-specific":[""],"product_title":[""],"_product_title":["field_696dc7d1ffb9d"],"product_description":[""],"_product_description":["field_696dc7fcffb9e"],"product_parameter1":[""],"_product_parameter1":["field_696dc805ffb9f"],"product_parameter2":[""],"_product_parameter2":["field_696dc80cffba0"],"product_parameter3":[""],"_product_parameter3":["field_696dc810ffba1"],"product_parameter4":[""],"_product_parameter4":["field_698bf104ad376"],"product_parameter5":[""],"_product_parameter5":["field_698bf108ad377"],"product_parameter6":[""],"_product_parameter6":["field_698bf10bad378"],"product_parameter7":[""],"_product_parameter7":["field_698bf10fad379"],"product_parameter8":[""],"_product_parameter8":["field_698bf113ad37a"],"product_parameter9":[""],"_product_parameter9":["field_698bf117ad37b"],"product_parameter_description1":[""],"_product_parameter_description1":["field_696dc813ffba2"],"product_parameter_description2":[""],"_product_parameter_description2":["field_696dc819ffba3"],"product_parameter_description3":[""],"_product_parameter_description3":["field_696dc81dffba4"],"product_parameter_description4":[""],"_product_parameter_description4":["field_698bf120ad37c"],"product_parameter_description5":[""],"_product_parameter_description5":["field_698bf127ad37d"],"product_parameter_description6":[""],"_product_parameter_description6":["field_698bf12aad37e"],"product_parameter_description7":[""],"_product_parameter_description7":["field_699ec236424da"],"product_parameter_description8":[""],"_product_parameter_description8":["field_698bf12dad37f"],"product_parameter_description9":[""],"_product_parameter_description9":["field_698bf131ad380"],"parameter_describ":[""],"_parameter_describ":["field_698bf138ad381"],"characteristics_tittle":[""],"_characteristics_tittle":["field_696dc821ffba5"],"characteristics_tittle1":[""],"_characteristics_tittle1":["field_696dc827ffba6"],"characteristics_tittle2":[""],"_characteristics_tittle2":["field_696dc82dffba7"],"characteristics_tittle3":[""],"_characteristics_tittle3":["field_696dc831ffba8"],"characteristics_tittle4":[""],"_characteristics_tittle4":["field_696dc85fffbb0"],"characteristics_tittle5":[""],"_characteristics_tittle5":["field_696dc86affbb1"],"characteristics_tittle6":[""],"_characteristics_tittle6":["field_696dc86effbb2"],"detailed_specifications_table":[""],"_detailed_specifications_table":["field_696de8a8dbb57"],"characteristics_description1":[""],"_characteristics_description1":["field_696dc835ffba9"],"characteristics_description2":[""],"_characteristics_description2":["field_696dc83dffbaa"],"characteristics_description3":[""],"_characteristics_description3":["field_696dc840ffbab"],"characteristics_description4":[""],"_characteristics_description4":["field_696dc845ffbac"],"characteristics_description5":[""],"_characteristics_description5":["field_696dc84fffbad"],"characteristics_description6":[""],"_characteristics_description6":["field_696dc854ffbae"],"comparison_points_tittle":[""],"_comparison_points_tittle":["field_696dc857ffbaf"],"comparison_points_tittle1":[""],"_comparison_points_tittle1":["field_696dc88affbb4"],"comparison_points_tittle2":[""],"_comparison_points_tittle2":["field_696dc894ffbb5"],"comparison_points_tittle3":[""],"_comparison_points_tittle3":["field_696dc898ffbb6"],"comparison_points_description":[""],"_comparison_points_description":["field_696dc8bcffbb9"],"comparison_points_description1":[""],"_comparison_points_description1":["field_696dc8c4ffbba"],"comparison_points_description2":[""],"_comparison_points_description2":["field_696dc8ceffbbb"],"application_title":[""],"_application_title":["field_696dc8d7ffbbd"],"comparison_points_description3":[""],"_comparison_points_description3":["field_696dc8d1ffbbc"],"application_title1":[""],"_application_title1":["field_696dc8e4ffbbe"],"application_title2":[""],"_application_title2":["field_696dc8eaffbbf"],"application_title3":[""],"_application_title3":["field_696dc8efffbc0"],"application_title4":[""],"_application_title4":["field_696dc8f2ffbc1"],"application_describe1":[""],"_application_describe1":["field_696dc8f6ffbc2"],"application_describe2":[""],"_application_describe2":["field_696dc8ffffbc3"],"application_describe3":[""],"_application_describe3":["field_696dc903ffbc4"],"application_describe4":[""],"_application_describe4":["field_696dc906ffbc5"],"before_sales_service_title":[""],"_before_sales_service_title":["field_696dfb056b777"],"after_sales_service_describe":[""],"_after_sales_service_describe":["field_696dfb2c6b778"],"pre_and_post_sales_titles":[""],"_pre_and_post_sales_titles":["field_696df49527daa"],"after_sales_service_title":[""],"_after_sales_service_title":["field_696df49b27dab"],"before_sales_service_describe":[""],"_before_sales_service_describe":["field_696df4a327dac"],"instruction_title":[""],"_instruction_title":["field_696dc90affbc6"],"instruction_title1":[""],"_instruction_title1":["field_696dc91bffbc7"],"instruction_title2":[""],"_instruction_title2":["field_696dc91effbc8"],"instruction_title3":[""],"_instruction_title3":["field_696dc923ffbc9"],"instruction_title4":[""],"_instruction_title4":["field_696dc928ffbca"],"instruction_describe1":[""],"_instruction_describe1":["field_696dc932ffbcb"],"instruction_describe2":[""],"_instruction_describe2":["field_696dc938ffbcc"],"instruction_describe3":[""],"_instruction_describe3":["field_696dc93effbcd"],"instruction_describe4":[""],"_instruction_describe4":["field_696dc941ffbce"],"material":[""],"_material":["field_696ef6d5b73af"],"material_description":[""],"_material_description":["field_696ef6f5b73b0"],"faq_question1":[""],"_faq_question1":["field_696de3fbfcc0c"],"faq_question2":[""],"_faq_question2":["field_696de40dfcc0d"],"faq_question3":[""],"_faq_question3":["field_696de411fcc0e"],"faq_question4":[""],"_faq_question4":["field_696de414fcc0f"],"faq_question5":[""],"_faq_question5":["field_696de418fcc10"],"faq_question6":[""],"_faq_question6":["field_696de41bfcc11"],"faq_answer1":[""],"_faq_answer1":["field_696de41ffcc12"],"faq_answer2":[""],"_faq_answer2":["field_696de42afcc13"],"faq_answer3":[""],"_faq_answer3":["field_696de431fcc14"],"faq_answer4":[""],"_faq_answer4":["field_696de434fcc15"],"faq_answer5":[""],"_faq_answer5":["field_696de437fcc16"],"faq_answer6":[""],"_faq_answer6":["field_696de43bfcc17"],"aggregated_titles":[""],"_aggregated_titles":["field_698ad8fabfec6"],"aggregate_description":[""],"_aggregate_description":["field_698ad913bfec7"],"polymer_product_sku1":[""],"_polymer_product_sku1":["field_698ad932bfec8"],"polymer_product_sku2":[""],"_polymer_product_sku2":["field_698ad93dbfec9"],"polymer_product_sku3":[""],"_polymer_product_sku3":["field_698ad941bfeca"],"polymer_product_sku4":[""],"_polymer_product_sku4":["field_69b2941681492"],"polymer_product_sku5":[""],"_polymer_product_sku5":["field_69b2941a81493"],"polymer_product_sku6":[""],"_polymer_product_sku6":["field_69b2941e81494"],"polymer_product_sku7":[""],"_polymer_product_sku7":["field_69b3d324b1d9b"],"polymer_product_sku8":[""],"_polymer_product_sku8":["field_69b3d32cb1d9c"],"polymer_product_sku9":[""],"_polymer_product_sku9":["field_69b3d32fb1d9d"],"polymer_product_sku10":[""],"_polymer_product_sku10":["field_69b3d332b1d9e"],"polymer_product_sku11":[""],"_polymer_product_sku11":["field_69b3d336b1d9f"],"aggregated_product_titles1":[""],"_aggregated_product_titles1":["field_698ad945bfecb"],"aggregated_product_titles2":[""],"_aggregated_product_titles2":["field_698ad94dbfecc"],"aggregated_product_titles3":[""],"_aggregated_product_titles3":["field_698ad954bfecd"],"aggregated_product_titles4":[""],"_aggregated_product_titles4":["field_69b2942881495"],"aggregated_product_titles5":[""],"_aggregated_product_titles5":["field_69b2942c81496"],"aggregated_product_titles6":[""],"_aggregated_product_titles6":["field_69b2942f81497"],"aggregated_product_titles7":[""],"_aggregated_product_titles7":["field_69b3d2d7b1d90"],"aggregated_product_titles8":[""],"_aggregated_product_titles8":["field_69b3d2dbb1d91"],"aggregated_product_titles9":[""],"_aggregated_product_titles9":["field_69b3d2deb1d92"],"aggregated_product_titles10":[""],"_aggregated_product_titles10":["field_69b3d2e4b1d93"],"aggregated_product_titles11":[""],"_aggregated_product_titles11":["field_69b3d2eab1d94"],"aggregated_product_description1":[""],"_aggregated_product_description1":["field_698ad957bfece"],"aggregated_product_description2":[""],"_aggregated_product_description2":["field_698ad961bfecf"],"aggregated_product_description3":[""],"_aggregated_product_description3":["field_698ad965bfed0"],"aggregated_product_description4":[""],"_aggregated_product_description4":["field_69b2944081498"],"aggregated_product_description5":[""],"_aggregated_product_description5":["field_69b2944481499"],"aggregated_product_description6":[""],"_aggregated_product_description6":["field_69b294488149a"],"aggregated_product_description7":[""],"_aggregated_product_description7":["field_69b3d2f4b1d95"],"aggregated_product_description8":[""],"_aggregated_product_description8":["field_69b3d2f8b1d96"],"aggregated_product_description9":[""],"_aggregated_product_description9":["field_69b3d2feb1d97"],"aggregated_product_description10":[""],"_aggregated_product_description10":["field_69b3d301b1d98"],"aggregated_product_description11":[""],"_aggregated_product_description11":["field_69b3d305b1d99"],"polymerization_characteristics_tittle":[""],"_polymerization_characteristics_tittle":["field_699d3c712ad62"],"polymerization_characteristics1":[""],"_polymerization_characteristics1":["field_699d3c742ad63"],"polymerization_characteristics2":[""],"_polymerization_characteristics2":["field_699d3c7d2ad64"],"polymerization_characteristics3":[""],"_polymerization_characteristics3":["field_699d3c802ad65"],"polymerization_characteristics4":[""],"_polymerization_characteristics4":["field_699d3c842ad66"],"polymerization_characteristics5":[""],"_polymerization_characteristics5":["field_699d3c8d2ad67"],"polymerization_characteristics6":[""],"_polymerization_characteristics6":["field_699d3c902ad68"],"polymerization_characteristics_descr1":[""],"_polymerization_characteristics_descr1":["field_699d3c9a2ad69"],"polymerization_characteristics_descr2":[""],"_polymerization_characteristics_descr2":["field_699d3c9c2ad6a"],"polymerization_characteristics_descr3":[""],"_polymerization_characteristics_descr3":["field_699d3c9f2ad6b"],"polymerization_characteristics_descr4":[""],"_polymerization_characteristics_descr4":["field_699d3ca22ad6c"],"polymerization_characteristics_descr5":[""],"_polymerization_characteristics_descr5":["field_699d3ca52ad6d"],"polymerization_characteristics_descr6":[""],"_polymerization_characteristics_descr6":["field_699d3ca92ad6e"],"aggregated_application_scenarios_tittle":[""],"_aggregated_application_scenarios_tittle":["field_699d3cae2ad6f"],"aggregated_application_scenarios1":[""],"_aggregated_application_scenarios1":["field_699d3cbd2ad70"],"aggregated_application_scenarios2":[""],"_aggregated_application_scenarios2":["field_699d3cc52ad71"],"aggregated_application_scenarios3":[""],"_aggregated_application_scenarios3":["field_699d3cc92ad72"],"aggregated_application_scenarios4":[""],"_aggregated_application_scenarios4":["field_699d3ccc2ad73"],"aggregated_application_scenarios5":[""],"_aggregated_application_scenarios5":["field_699d3cd02ad74"],"aggregated_application_scenarios6":[""],"_aggregated_application_scenarios6":["field_699d3cd42ad75"],"aggregated_application_scenarios7":[""],"_aggregated_application_scenarios7":["field_69c0d8cb5afd4"],"aggregated_application_scenarios8":[""],"_aggregated_application_scenarios8":["field_69c0d8cf5afd5"],"aggregated_application_scenarios9":[""],"_aggregated_application_scenarios9":["field_69c0d8d25afd6"],"aggregated_application_scenarios10":[""],"_aggregated_application_scenarios10":["field_69c0d8d65afd7"],"aggregated_tdk_descption":[""],"_aggregated_tdk_descption":["field_69b3a22178d86"],"aggregated_url":[""],"_aggregated_url":["field_69b3c269f88ab"],"aggregated_tdk_decption":[""],"_aggregated_tdk_decption":["field_69b3c279f88ac"],"aggregated_product_link1":[""],"_aggregated_product_link1":["field_69bb8958a804d"],"aggregated_product_link2":[""],"_aggregated_product_link2":["field_69bba5b2fb5a4"],"aggregated_product_link3":[""],"_aggregated_product_link3":["field_69bba5b7fb5a5"],"aggregated_product_link4":[""],"_aggregated_product_link4":["field_69bba5c1fb5a6"],"aggregated_product_link5":[""],"_aggregated_product_link5":["field_69bba5c5fb5a7"],"aggregated_product_link6":[""],"_aggregated_product_link6":["field_69bba5c9fb5a8"],"aggregated_product_link7":[""],"_aggregated_product_link7":["field_69bba5cffb5a9"],"aggregated_product_link8":[""],"_aggregated_product_link8":["field_69bba5d5fb5aa"],"aggregated_product_link9":[""],"_aggregated_product_link9":["field_69bba5d8fb5ab"],"aggregated_product_link10":[""],"_aggregated_product_link10":["field_69bba5dbfb5ac"],"aggregated_product_link11":[""],"_aggregated_product_link11":["field_69bba5defb5ad"],"aggregated_prods1_imgurl":[""],"_aggregated_prods1_imgurl":["field_69bba5e1fb5ae"],"aggregated_prods2_imgurl":[""],"_aggregated_prods2_imgurl":["field_69bba603fb5af"],"aggregated_prods3_imgurl":[""],"_aggregated_prods3_imgurl":["field_69bba608fb5b0"],"aggregated_prods4_imgurl":[""],"_aggregated_prods4_imgurl":["field_69bba60dfb5b1"],"aggregated_prods5_imgurl":[""],"_aggregated_prods5_imgurl":["field_69bba612fb5b2"],"aggregated_prods6_imgurl":[""],"_aggregated_prods6_imgurl":["field_69bba617fb5b3"],"aggregated_prods7_imgurl":[""],"_aggregated_prods7_imgurl":["field_69bba61ffb5b4"],"aggregated_prods8_imgurl":[""],"_aggregated_prods8_imgurl":["field_69bba625fb5b5"],"aggregated_prods9_imgurl":[""],"_aggregated_prods9_imgurl":["field_69bba62afb5b6"],"aggregated_prods10_imgurl":[""],"_aggregated_prods10_imgurl":["field_69bba630fb5b7"],"aggregated_prods11_imgurl":[""],"_aggregated_prods11_imgurl":["field_69bba634fb5b8"],"catce":["sidebar-widgets4"],"rank_math_schema_BlogPosting":["a:9:{s:8:\"headline\";s:11:\"%seo_title%\";s:11:\"description\";s:17:\"%seo_description%\";s:13:\"datePublished\";s:20:\"%date(Y-m-dTH:i:sP)%\";s:12:\"dateModified\";s:24:\"%modified(Y-m-dTH:i:sP)%\";s:8:\"keywords\";s:10:\"%keywords%\";s:5:\"image\";a:2:{s:5:\"@type\";s:11:\"ImageObject\";s:3:\"url\";s:16:\"%post_thumbnail%\";}s:6:\"author\";a:2:{s:5:\"@type\";s:6:\"Person\";s:4:\"name\";s:6:\"%name%\";}s:5:\"@type\";s:11:\"BlogPosting\";s:8:\"metadata\";a:3:{s:5:\"title\";s:7:\"Article\";s:4:\"type\";s:8:\"template\";s:9:\"isPrimary\";b:1;}}"],"rank_math_schema_VideoObject":["a:12:{s:5:\"@type\";s:11:\"VideoObject\";s:8:\"metadata\";a:8:{s:5:\"title\";s:5:\"Video\";s:4:\"type\";s:8:\"template\";s:9:\"shortcode\";s:15:\"s-6a475e829c91d\";s:9:\"isPrimary\";b:1;s:23:\"reviewLocationShortcode\";s:24:\"[rank_math_rich_snippet]\";s:8:\"category\";s:12:\"%categories%\";s:4:\"tags\";s:6:\"%tags%\";s:15:\"isAutoGenerated\";b:1;}s:4:\"name\";s:57:\"Track Drive Robot Chain and Sprocket Sizing:  #41 vs. #40\";s:11:\"description\";s:85:\"I encountered some chain sizing issues.  I discuss drive train design considerations.\";s:10:\"uploadDate\";s:25:\"2018-04-27T15:36:10-07:00\";s:12:\"thumbnailUrl\";s:82:\"https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/f_auto,q_auto\/v1783087128\/track-drive-robot-chain-and-spro\/track-drive-robot-chain-and-spro.jpg?_i=AA\";s:8:\"embedUrl\";s:41:\"https:\/\/www.youtube.com\/embed\/2ocPc3pZmMA\";s:10:\"contentUrl\";s:0:\"\";s:8:\"duration\";s:6:\"PT6M4S\";s:5:\"width\";s:4:\"1280\";s:6:\"height\";s:3:\"720\";s:16:\"isFamilyFriendly\";b:1;}"],"views":["176"],"rank_math_primary_category":["1"],"_thumbnail_id":["92759"],"themepark_seo_title":["40 Vs 41 Vs 420 Chain: Stop Breaking Go Kart Drivetrains"],"themepark_seo_description":["Decode 40 Vs 41 Vs 420 Chain Specs. Stop Breaking Go Kart Drivetrains By Matching Sprockets With The R.T.S. Model."],"themepark_seo_keyword":["40 Vs 420 Chain ,40 Vs 41 Vs 420 Chain, 41 Vs 420 Chain"],"cloudinary_transformations_terms":["a:1:{i:0;s:13:\"category:1017\";}"]},"acf":[],"medium_url":"https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/w_300,h_169,c_scale\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA","thumbnail_url":"https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/w_150,h_150,c_fill,g_auto\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA","full_url":"https:\/\/res.cloudinary.com\/dg7urvfyb\/images\/f_auto,q_auto\/v1783087120\/image-411\/image-411.png?_i=AA","_links":{"self":[{"href":"https:\/\/www.motomaxsfr.com\/fr\/wp-json\/wp\/v2\/posts\/92152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.motomaxsfr.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.motomaxsfr.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.motomaxsfr.com\/fr\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.motomaxsfr.com\/fr\/wp-json\/wp\/v2\/comments?post=92152"}],"version-history":[{"count":3,"href":"https:\/\/www.motomaxsfr.com\/fr\/wp-json\/wp\/v2\/posts\/92152\/revisions"}],"predecessor-version":[{"id":92826,"href":"https:\/\/www.motomaxsfr.com\/fr\/wp-json\/wp\/v2\/posts\/92152\/revisions\/92826"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.motomaxsfr.com\/fr\/wp-json\/wp\/v2\/media\/92759"}],"wp:attachment":[{"href":"https:\/\/www.motomaxsfr.com\/fr\/wp-json\/wp\/v2\/media?parent=92152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.motomaxsfr.com\/fr\/wp-json\/wp\/v2\/categories?post=92152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.motomaxsfr.com\/fr\/wp-json\/wp\/v2\/tags?post=92152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}