{"id":3586,"date":"2026-04-03T06:50:35","date_gmt":"2026-04-03T06:50:35","guid":{"rendered":"https:\/\/motorcyclechain.top\/?post_type=product&#038;p=3586"},"modified":"2026-04-03T06:50:38","modified_gmt":"2026-04-03T06:50:38","slug":"420-standard-motorcycle-chain-12-700mm-pitch-15-6-kn","status":"publish","type":"product","link":"https:\/\/motorcyclechain.top\/fr\/product\/420-standard-motorcycle-chain-12-700mm-pitch-15-6-kn\/","title":{"rendered":"Cha\u00eene moto standard 420 | Pas de 12\u00a0700 mm, 15,6 kN"},"content":{"rendered":"<div style=\"font-family: 'Segoe UI',Arial,sans-serif; color: #333; max-width: 1100px; margin: 0 auto; padding: 2% 3%; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<p><!-- \u2550\u2550\u2550 OVERVIEW \u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(18px,2.5vw + 11px,26px); color: #1a3c6e; border-left: 4px solid #e8a020; padding-left: 12px; margin-top: 0; margin-bottom: 16px;\">Pr\u00e9sentation du produit<\/h2>\n<div style=\"font-size: clamp(14px,2vw + 10px,18px); line-height: 1.8;\">\n<p>Le <strong>cha\u00eene de moto 420<\/strong> Il s'agit d'une cha\u00eene \u00e0 rouleaux avec un pas de 12\u00a0700 mm et une largeur int\u00e9rieure de 6,35 mm\u00a0\u2014 la plus \u00e9troite et la plus l\u00e9g\u00e8re de la famille des cha\u00eenes au pas de 1\/2 pouce couramment utilis\u00e9es. Elle se situe dans la partie inf\u00e9rieure de la gamme des cha\u00eenes de moto standard, con\u00e7ue pour les moteurs de puissance mod\u00e9r\u00e9e o\u00f9 la r\u00e9duction de la masse en rotation et du poids de la cha\u00eene contribue r\u00e9ellement aux performances globales de la machine. Avec un poids de 0,57 kg\/m et une r\u00e9sistance \u00e0 la traction de 15,6 kN, la cha\u00eene 420 supporte la plage de couple des moteurs quatre temps de 50 \u00e0 125 cm\u00b3 environ avec une marge confortable.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3589 aligncenter\" src=\"https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/420-Standard-Motorcycle-Chain-1-1.webp\" alt=\"Cha\u00eene de moto standard 420 1 (1)\" width=\"600\" height=\"600\" srcset=\"https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/420-Standard-Motorcycle-Chain-1-1.webp 600w, https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/420-Standard-Motorcycle-Chain-1-1-480x480.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 600px, 100vw\" \/><\/p>\n<p>La cha\u00eene \u00e0 pas de 420 maillons est mont\u00e9e de s\u00e9rie sur la plupart des cyclomoteurs 50 cm\u00b3, les motos 125 cm\u00b3 d'entr\u00e9e de gamme, de nombreuses motos tout-terrain de 50 \u00e0 110 cm\u00b3, ainsi que sur une grande vari\u00e9t\u00e9 de quads et de petits v\u00e9hicules tout-terrain de loisirs. Sa l\u00e9g\u00e8ret\u00e9 est un v\u00e9ritable atout sur ces engins\u00a0: une cha\u00eene \u00e0 pas de 420 maillons est sensiblement plus l\u00e9g\u00e8re qu'une cha\u00eene \u00e0 pas de 428 maillons ou de 520 maillons, et sur un engin de 70 kg dot\u00e9 d'un moteur de 4 kW, la diff\u00e9rence est plus significative que sur une moto de tourisme de 200 kg \u00e9quip\u00e9e d'un moteur de 60 kW.<\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550 SPEC TABLE \u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(18px,2.5vw + 11px,26px); color: #1a3c6e; border-left: 4px solid #e8a020; padding-left: 12px; margin-top: 40px; margin-bottom: 16px;\">Caract\u00e9ristiques<\/h2>\n<div style=\"overflow-x: auto; width: 100%; margin: 16px 0;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 680px; font-size: clamp(12px,1.5vw + 8px,14px);\">\n<thead>\n<tr style=\"background: #1a3c6e; color: #fff;\">\n<th style=\"padding: 9px 7px; text-align: center; border: 1px solid #2a4c7e;\">Num\u00e9ro de cha\u00eene<\/th>\n<th style=\"padding: 9px 7px; text-align: center; border: 1px solid #2a4c7e;\">Pas (mm)<\/th>\n<th style=\"padding: 9px 7px; text-align: center; border: 1px solid #2a4c7e;\">Type de douille<\/th>\n<th style=\"padding: 9px 7px; text-align: center; border: 1px solid #2a4c7e;\">Largeur (mm)<\/th>\n<th style=\"padding: 9px 7px; text-align: center; border: 1px solid #2a4c7e;\">Diam\u00e8tre de la broche (mm)<\/th>\n<th style=\"padding: 9px 7px; text-align: center; border: 1px solid #2a4c7e;\">Longueur de la broche (mm)<\/th>\n<th style=\"padding: 9px 7px; text-align: center; border: 1px solid #2a4c7e;\">Diam\u00e8tre du rouleau (mm)<\/th>\n<th style=\"padding: 9px 7px; text-align: center; border: 1px solid #2a4c7e;\">Plaque T Int\u00e9rieure (mm)<\/th>\n<th style=\"padding: 9px 7px; text-align: center; border: 1px solid #2a4c7e;\">Plaque T Ext\u00e9rieure (mm)<\/th>\n<th style=\"padding: 9px 7px; text-align: center; border: 1px solid #2a4c7e;\">R\u00e9sistance \u00e0 la traction (kN)<\/th>\n<th style=\"padding: 9px 7px; text-align: center; border: 1px solid #2a4c7e;\">Poids (kg\/m)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #f0f5ff;\">\n<td style=\"padding: 9px 7px; text-align: center; border: 1px solid #d0dce8; font-weight: bold;\">420<\/td>\n<td style=\"padding: 9px 7px; text-align: center; border: 1px solid #d0dce8;\">12.700<\/td>\n<td style=\"padding: 9px 7px; text-align: center; border: 1px solid #d0dce8;\">fris\u00e9<\/td>\n<td style=\"padding: 9px 7px; text-align: center; border: 1px solid #d0dce8;\">6.35<\/td>\n<td style=\"padding: 9px 7px; text-align: center; border: 1px solid #d0dce8;\">3.96<\/td>\n<td style=\"padding: 9px 7px; text-align: center; border: 1px solid #d0dce8;\">14.70<\/td>\n<td style=\"padding: 9px 7px; text-align: center; border: 1px solid #d0dce8;\">7.77<\/td>\n<td style=\"padding: 9px 7px; text-align: center; border: 1px solid #d0dce8;\">1.50<\/td>\n<td style=\"padding: 9px 7px; text-align: center; border: 1px solid #d0dce8;\">1.50<\/td>\n<td style=\"padding: 9px 7px; text-align: center; border: 1px solid #d0dce8;\">15.6<\/td>\n<td style=\"padding: 9px 7px; text-align: center; border: 1px solid #d0dce8;\">0.57<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><!-- \u2550\u2550\u2550 COMPARISON: 420 vs 428 vs 520 pitch selection \u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(18px,2.5vw + 11px,26px); color: #1a3c6e; border-left: 4px solid #e8a020; padding-left: 12px; margin-top: 40px; margin-bottom: 16px;\">420 vs 428 vs 520 \u2014 Choisir le bon lancer<\/h2>\n<div style=\"font-size: clamp(14px,2vw + 10px,18px); line-height: 1.8; margin-bottom: 16px;\">\n<p>All three pitches belong to the 12.70 mm (1\/2 inch) pitch family but carry different inner widths and consequently different roller contact areas. The pitch number encodes both pitch (first two digits: &#8220;42&#8221; = 4\/8 inch \u00d7 10 = 12.7 mm; &#8220;52&#8221; = 5\/8 inch \u00d7 10 = 15.875 mm) and width class (last two digits). For bikes currently running a 420, attempting to fit a 428 or 520 requires sprocket replacement \u2014 the sprockets are not interchangeable between inner width families. Confirm your existing chain&#8217;s stamped number before ordering any replacement.<\/p>\n<\/div>\n<div style=\"overflow-x: auto; width: 100%; margin: 16px 0;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 500px; font-size: clamp(12px,1.5vw + 8px,14px);\">\n<thead>\n<tr style=\"background: #1a3c6e; color: #fff;\">\n<th style=\"padding: 9px 8px; text-align: left; border: 1px solid #2a4c7e;\">Sp\u00e9cification<\/th>\n<th style=\"padding: 9px 8px; text-align: center; border: 1px solid #2a4c7e; background: #2d5490;\">420 (Cette cha\u00eene)<\/th>\n<th style=\"padding: 9px 8px; text-align: center; border: 1px solid #2a4c7e;\">428<\/th>\n<th style=\"padding: 9px 8px; text-align: center; border: 1px solid #2a4c7e;\">520<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #f0f5ff;\">\n<td style=\"padding: 8px; border: 1px solid #d0dce8;\">Pas (mm)<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8; font-weight: bold;\">12.700<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">12.700<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">15.875<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px; border: 1px solid #d0dce8;\">Largeur int\u00e9rieure (mm)<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8; font-weight: bold;\">6.35<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">7.85<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">6.35<\/td>\n<\/tr>\n<tr style=\"background: #f0f5ff;\">\n<td style=\"padding: 8px; border: 1px solid #d0dce8;\">Diam\u00e8tre du rouleau (mm)<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8; font-weight: bold;\">7.77<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">8.51<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">10.16<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px; border: 1px solid #d0dce8;\">R\u00e9sistance \u00e0 la traction (kN)<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8; font-weight: bold;\">15.6<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">17.8<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">26.5<\/td>\n<\/tr>\n<tr style=\"background: #f0f5ff;\">\n<td style=\"padding: 8px; border: 1px solid #d0dce8;\">Poids (kg\/m)<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8; font-weight: bold;\">0.57<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">0.71<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">0.91<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px; border: 1px solid #d0dce8;\">Cylindr\u00e9e typique d'un moteur<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8; font-weight: bold;\">50\u2013125 cm3<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">125\u2013250 cm3<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">250\u2013600 cm3<\/td>\n<\/tr>\n<tr style=\"background: #f0f5ff;\">\n<td style=\"padding: 8px; border: 1px solid #d0dce8;\">Applications courantes<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8; font-weight: bold;\">Cyclomoteurs, mini motos tout-terrain, petits quads<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">125\u2013250 cm3 route, tout-terrain<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">Motos sportives et roadsters de moyenne cylindr\u00e9e<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px; border: 1px solid #d0dce8;\">Interchangeabilit\u00e9 des pignons<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8; font-weight: bold;\">pignons 420 seulement<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">428 pignons seulement<\/td>\n<td style=\"padding: 8px; text-align: center; border: 1px solid #d0dce8;\">pignons 520 uniquement<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div style=\"font-size: clamp(14px,2vw + 10px,18px); line-height: 1.8; margin-top: 12px;\">\n<p>The 420&#8217;s narrower width versus the 428 (6.35 vs 7.85 mm inner) is the most significant physical difference between the two same-pitch options. Both use 12.70 mm pitch \u2014 and that&#8217;s the only dimension that matters for sprocket mesh \u2014 but the 420&#8217;s narrower roller means it will not seat correctly in a 428 sprocket&#8217;s tooth spacing. Always check whether your sprockets are stamped 420 or 428 before ordering, especially on bikes where previous owners may have upgraded the <a href=\"https:\/\/motorcyclechain.top\/fr\/product-category\/motorcycle-chain\/\"><strong>cha\u00eene de moto<\/strong><\/a> sans remplacer les pignons.<\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550 ADVANTAGES AND TRADE-OFFS \u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(18px,2.5vw + 11px,26px); color: #1a3c6e; border-left: 4px solid #e8a020; padding-left: 12px; margin-top: 40px; margin-bottom: 16px;\">Avantages et inconv\u00e9nients du 420<\/h2>\n<div style=\"font-size: clamp(14px,2vw + 10px,18px); line-height: 1.8; margin-bottom: 16px;\">\n<p>The 420 pitch occupies a clear niche. Understanding both what it does well and where its limits are helps ensure you&#8217;re choosing the right specification for your actual riding needs, not simply defaulting to a &#8220;bigger is better&#8221; upgrade that adds weight without benefit.<\/p>\n<\/div>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 20px;\">\n<div style=\"flex: 1; min-width: 240px; background: #f0f5ff; border: 1px solid #d0dce8; border-radius: 8px; padding: 3%; box-sizing: border-box;\">\n<h3 style=\"font-size: clamp(14px,1.8vw + 10px,17px); color: #1a3c6e; margin: 0 0 12px;\">L\u00e0 o\u00f9 le 420 fonctionne bien<\/h3>\n<ul style=\"list-style: none; padding: 0; margin: 0;\">\n<li style=\"display: flex; gap: 8px; padding: 6px 0; font-size: clamp(13px,1.6vw + 9px,15px); border-bottom: 1px solid #dde5f5;\"><span style=\"color: #1a6ec8;\">\u2714<\/span>Pour les scooters et cyclomoteurs de 50 \u00e0 125 cm\u00b3 circulant sur routes goudronn\u00e9es, la force exerc\u00e9e reste largement inf\u00e9rieure \u00e0 la capacit\u00e9 de charge de 15,6 kN, avec une marge de s\u00e9curit\u00e9 substantielle.<\/li>\n<li style=\"display: flex; gap: 8px; padding: 6px 0; font-size: clamp(13px,1.6vw + 9px,15px); border-bottom: 1px solid #dde5f5;\"><span style=\"color: #1a6ec8;\">\u2714<\/span>Mini motos tout-terrain et pit bikes o\u00f9 la r\u00e9duction du poids est un v\u00e9ritable facteur de performance dans le rapport poids\/puissance<\/li>\n<li style=\"display: flex; gap: 8px; padding: 6px 0; font-size: clamp(13px,1.6vw + 9px,15px); border-bottom: 1px solid #dde5f5;\"><span style=\"color: #1a6ec8;\">\u2714<\/span>Remplacement \u00e9conomique sur les motos \u00e9quip\u00e9es d'un pignon de 420 mm (sp\u00e9cifications d'origine)\u00a0: passer \u00e0 un pas plus lourd implique \u00e9galement de nouveaux pignons, ce qui est rarement justifi\u00e9 par le co\u00fbt.<\/li>\n<li style=\"display: flex; gap: 8px; padding: 6px 0; font-size: clamp(13px,1.6vw + 9px,15px);\"><span style=\"color: #1a6ec8;\">\u2714<\/span>VTT r\u00e9cr\u00e9atifs et v\u00e9hicules tout-terrain l\u00e9gers dont la transmission est rarement proche de ses limites de charge<\/li>\n<\/ul>\n<\/div>\n<div style=\"flex: 1; min-width: 240px; background: #fff8f0; border: 1px solid #e8d0b0; border-radius: 8px; padding: 3%; box-sizing: border-box;\">\n<h3 style=\"font-size: clamp(14px,1.8vw + 10px,17px); color: #7a3c00; margin: 0 0 12px;\">O\u00f9 envisager une mise \u00e0 niveau<\/h3>\n<ul style=\"list-style: none; padding: 0; margin: 0;\">\n<li style=\"display: flex; gap: 8px; padding: 6px 0; font-size: clamp(13px,1.6vw + 9px,15px); border-bottom: 1px solid #f0ddc0;\"><span style=\"color: #c07020;\">\u2717<\/span>Les moteurs hautes performances de 125 \u00e0 150 cm\u00b3 produisant plus de 12 \u00e0 15 kW environ \u2013 le coefficient de s\u00e9curit\u00e9 de 15,6 kN peut s'av\u00e9rer insuffisant en cas d'acc\u00e9l\u00e9ration forte et soutenue.<\/li>\n<li style=\"display: flex; gap: 8px; padding: 6px 0; font-size: clamp(13px,1.6vw + 9px,15px); border-bottom: 1px solid #f0ddc0;\"><span style=\"color: #c07020;\">\u2717<\/span>Pour une utilisation hors route avec des passages \u00e0 gu\u00e9 fr\u00e9quents ou une exposition prolong\u00e9e \u00e0 la boue, privil\u00e9giez le mod\u00e8le 420H (renforc\u00e9) ou une version \u00e9tanche pour une dur\u00e9e de vie accrue.<\/li>\n<li style=\"display: flex; gap: 8px; padding: 6px 0; font-size: clamp(13px,1.6vw + 9px,15px);\"><span style=\"color: #c07020;\">\u2717<\/span>Pour les cyclistes qui ne peuvent pas respecter l'intervalle de lubrification de 400 \u00e0 500 km requis par la cha\u00eene standard non \u00e9tanche, les cha\u00eenes \u00e9tanches 4205-O ou 415H-O (avec joint torique) supportent mieux des intervalles plus longs.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p><!-- \u2550\u2550\u2550 LUBRICATION \u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(18px,2.5vw + 11px,26px); color: #1a3c6e; border-left: 4px solid #e8a020; padding-left: 12px; margin-top: 40px; margin-bottom: 16px;\">Programme et m\u00e9thode de lubrification<\/h2>\n<div style=\"font-size: clamp(14px,2vw + 10px,18px); line-height: 1.8; margin-bottom: 16px;\">\n<p>Une cha\u00eene standard 420 doit \u00eatre lubrifi\u00e9e tous les 400 \u00e0 600 km en conditions normales de conduite sur route goudronn\u00e9e, ou plus fr\u00e9quemment en cas d'utilisation dans des environnements humides ou poussi\u00e9reux. La conception \u00e0 bagues enroul\u00e9es implique que le joint interne d\u00e9pend enti\u00e8rement d'un lubrifiant appliqu\u00e9 de l'ext\u00e9rieur\u00a0; d\u00e8s que ce film protecteur s\u00e8che ou est d\u00e9plac\u00e9 par les salet\u00e9s de la route, l'usure des bagues s'acc\u00e9l\u00e8re rapidement. Sur les scooters effectuant de courts trajets quotidiens, le temps peut \u00e9galement \u00eatre un indicateur pratique\u00a0: si trois semaines se sont \u00e9coul\u00e9es depuis la derni\u00e8re lubrification, quel que soit le kilom\u00e9trage, lubrifiez la cha\u00eene avant la prochaine utilisation.<\/p>\n<\/div>\n<ol style=\"list-style: none; padding-left: 0; margin: 0 0 16px;\">\n<li style=\"display: flex; gap: 10px; padding: 8px 0; font-size: clamp(14px,2vw + 10px,18px); border-bottom: 1px solid #f0f0f0; align-items: flex-start;\"><span style=\"flex-shrink: 0; background: #1a3c6e; color: #fff; border-radius: 50%; min-width: 26px; height: 26px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold;\">1<\/span><br \/>\nCommencez par nettoyer la cha\u00eene avec un d\u00e9graissant ou un nettoyant sp\u00e9cifique. Rincez-la \u00e0 l'eau et laissez-la s\u00e9cher. Appliquer du lubrifiant sur les r\u00e9sidus de gravillons permet de retenir les particules abrasives contre les rouleaux.<\/li>\n<li style=\"display: flex; gap: 10px; padding: 8px 0; font-size: clamp(14px,2vw + 10px,18px); border-bottom: 1px solid #f0f0f0; align-items: flex-start;\"><span style=\"flex-shrink: 0; background: #1a3c6e; color: #fff; border-radius: 50%; min-width: 26px; height: 26px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold;\">2<\/span><br \/>\nAppliquez du lubrifiant pour cha\u00eene \u00e0 l'int\u00e9rieur des maillons (les surfaces internes entre les rouleaux et les plaques) tout en faisant tourner la roue arri\u00e8re \u00e0 la main. Cela permet de lubrifier les surfaces de contact entre les rouleaux et les pignons, ainsi qu'entre les axes et les bagues.<\/li>\n<li style=\"display: flex; gap: 10px; padding: 8px 0; font-size: clamp(14px,2vw + 10px,18px); border-bottom: 1px solid #f0f0f0; align-items: flex-start;\"><span style=\"flex-shrink: 0; background: #1a3c6e; color: #fff; border-radius: 50%; min-width: 26px; height: 26px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold;\">3<\/span><br \/>\nAppliquez une fine couche sur les surfaces ext\u00e9rieures de la plaque pour r\u00e9duire la corrosion sur les faces de la plaque, ce qui est particuli\u00e8rement important pendant les saisons humides ou dans les environnements c\u00f4tiers \u00e0 air salin.<\/li>\n<li style=\"display: flex; gap: 10px; padding: 8px 0; font-size: clamp(14px,2vw + 10px,18px); border-bottom: 1px solid #f0f0f0; align-items: flex-start;\"><span style=\"flex-shrink: 0; background: #1a3c6e; color: #fff; border-radius: 50%; min-width: 26px; height: 26px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold;\">4<\/span><br \/>\nEssuyez l'exc\u00e9dent de lubrifiant sur les faces ext\u00e9rieures de la plaque apr\u00e8s 2 minutes. L'exc\u00e8s d'huile est projet\u00e9 \u00e0 grande vitesse sur le pneu arri\u00e8re et attire \u00e9galement la poussi\u00e8re de la route, ce qui annule l'effet lubrifiant.<\/li>\n<li style=\"display: flex; gap: 10px; padding: 8px 0; font-size: clamp(14px,2vw + 10px,18px); align-items: flex-start;\"><span style=\"flex-shrink: 0; background: #1a3c6e; color: #fff; border-radius: 50%; min-width: 26px; height: 26px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold;\">5<\/span><br \/>\nAllow lubricant to dry before riding. Check chain slack at the same time \u2014 correct slack for most small-displacement machines is 25\u201330 mm of vertical movement at the midpoint of the lower chain run. Check your owner&#8217;s manual for the model-specific figure.<\/li>\n<\/ol>\n<div style=\"font-size: clamp(13px,1.6vw + 9px,15px); background: #f7f9fc; border-left: 3px solid #1a3c6e; padding: 12px 16px; border-radius: 4px; margin: 0 0 20px; line-height: 1.7;\">Note climatique\u00a0: En \u00e9t\u00e9, sous la chaleur humide de Cor\u00e9e, ou pendant la mousson, lubrifiez votre cha\u00eene apr\u00e8s chaque sortie de plus de 300\u00a0km ou apr\u00e8s avoir roul\u00e9 sous la pluie. Les projections d\u2019eau \u00e9liminent le lubrifiant des cha\u00eenes non \u00e9tanches plus rapidement que par temps sec.<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3590\" src=\"https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/Motorcycle-Chain-application-1-1.webp\" alt=\"Application de cha\u00eene de moto 1-1\" width=\"1595\" height=\"985\" srcset=\"https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/Motorcycle-Chain-application-1-1.webp 1595w, https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/Motorcycle-Chain-application-1-1-1280x790.webp 1280w, https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/Motorcycle-Chain-application-1-1-980x605.webp 980w, https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/Motorcycle-Chain-application-1-1-480x296.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1595px, 100vw\" \/><\/p>\n<p><!-- \u2550\u2550\u2550 SPROCKETS \u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(18px,2.5vw + 11px,26px); color: #1a3c6e; border-left: 4px solid #e8a020; padding-left: 12px; margin-top: 40px; margin-bottom: 16px;\">Pignons pour cha\u00eenes de moto \u2014 Rapport de transmission et s\u00e9lection<\/h2>\n<div style=\"font-size: clamp(14px,2vw + 10px,18px); line-height: 1.8;\">\n<p>L'avant et l'arri\u00e8re <a style=\"color: #1a6ec8;\" href=\"https:\/\/chains-sprockets.com\/\" target=\"_blank\" rel=\"noopener\">pignons<\/a> define the final drive ratio \u2014 the ratio of rear sprocket tooth count to front sprocket tooth count. On a 420-equipped machine with 14 front teeth and 42 rear teeth, the ratio is 3.0:1, meaning the rear wheel turns once for every three crankshaft rotations at the engine&#8217;s output shaft (after the gearbox). Increasing the rear sprocket tooth count (or reducing front) raises the ratio, giving more acceleration at the cost of top speed. Reducing rear teeth (or adding front) lowers the ratio, raising top speed while reducing low-end pull.<\/p>\n<p>For the standard 420 specification, sprocket material is typically steel \u2014 providing the best durability match for a chain expected to cover 8,000\u201315,000 km before replacement. Aluminium sprockets on a 420 machine are uncommon because the weight saving relative to the machine&#8217;s overall mass is negligible, and steel outlasts aluminium by a significant factor at this chain pitch and power level.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3479 aligncenter\" style=\"max-width: 100%; height: auto; display: block; margin: 12px 0; border-radius: 6px;\" title=\"cha\u00eene et pignon de moto 2\" src=\"https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/motorcycle-chain-and-sprocket-2.webp\" alt=\"cha\u00eene et pignon de moto 2\" width=\"1254\" height=\"1254\" srcset=\"https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/motorcycle-chain-and-sprocket-2.webp 1254w, https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/motorcycle-chain-and-sprocket-2-980x980.webp 980w, https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/motorcycle-chain-and-sprocket-2-480x480.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1254px, 100vw\" \/><\/p>\n<p>When replacing the chain, inspect both sprockets. Tooth tips that appear pointed or thinned, or leading tooth faces with a hook-shaped profile, mean the sprockets should be replaced simultaneously. Fitting a new 420 chain on worn sprockets will accelerate the new chain&#8217;s elongation rate considerably \u2014 the worn sprocket shifts load onto the chain&#8217;s side plates rather than the rollers, which is not how 420 chains are designed to carry load.<\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550 MANUFACTURER \u2550\u2550\u2550 --><\/p>\n<p>&nbsp;<\/p>\n<h2 style=\"font-size: clamp(18px,2.5vw + 11px,26px); color: #1a3c6e; border-left: 4px solid #e8a020; padding-left: 12px; margin-top: 40px; margin-bottom: 16px;\">Foire aux questions<\/h2>\n<div style=\"font-size: clamp(14px,2vw + 10px,18px); line-height: 1.8;\">\n<p><strong>Puis-je utiliser une cha\u00eene 428 sur un v\u00e9lo qui utilise actuellement une cha\u00eene 420\u00a0?<\/strong><br \/>\nIl est imp\u00e9ratif de remplacer les deux pignons. Les cha\u00eenes 420 et 428 ont le m\u00eame pas de 12,70 mm, assurant ainsi un engr\u00e8nement identique. Cependant, la diff\u00e9rence de largeur int\u00e9rieure (6,35 mm contre 7,85 mm) emp\u00eache le galet de s'embo\u00eeter correctement dans l'espacement des dents du pignon 420 si une cha\u00eene 428 est install\u00e9e. La cha\u00eene risque alors de se bloquer ou de mal rouler, provoquant une usure rapide et un risque pour la s\u00e9curit\u00e9. N'installez une cha\u00eene 428 que si vous remplacez \u00e9galement les deux pignons par des pi\u00e8ces compatibles 428.<\/p>\n<p><strong>Quelle est la diff\u00e9rence entre une cha\u00eene 420 et une cha\u00eene 415\u00a0?<\/strong><br \/>\nLa cha\u00eene 415 poss\u00e8de le m\u00eame pas de 12,70 mm, mais une largeur int\u00e9rieure encore plus r\u00e9duite, d'environ 4,76 mm (contre 6,35 mm pour la 420). Elle est utilis\u00e9e sur les motos de tr\u00e8s petite cylindr\u00e9e (50 cm\u00b3 de comp\u00e9tition et certaines mini-motos) o\u00f9 le poids minimal de la cha\u00eene est primordial. La cha\u00eene 420 est plus courante car son galet plus large offre une plus grande surface de contact avec la dent du pignon, r\u00e9duisant ainsi l'usure des dents \u00e0 charge \u00e9quivalente.<\/p>\n<p><strong>Comment mesurer l'allongement d'une cha\u00eene 420 pour d\u00e9cider quand la remplacer ?<\/strong><br \/>\nMesurez la distance entre 20 maillons cons\u00e9cutifs (d'axe en axe sur 20 maillons) en appliquant une l\u00e9g\u00e8re tension \u00e0 la cha\u00eene. La distance nominale pour 20 maillons est de 20 \u00d7 12,70 = 254,0 mm. Remplacez la cha\u00eene lorsque sa longueur mesur\u00e9e d\u00e9passe 261,6 mm (allongement 3%). \u00c9cartez \u00e9galement la cha\u00eene du pignon arri\u00e8re au milieu de son axe\u00a0; si vous pouvez d\u00e9gager plus de la moiti\u00e9 de la base d'une dent, la cha\u00eene est trop us\u00e9e pour \u00eatre r\u00e9gl\u00e9e.<\/p>\n<p><strong>Le mod\u00e8le 420 est-il disponible en version \u00e9tanche avec joint torique ?<\/strong><br \/>\nLe mod\u00e8le 4205-O (joint torique, pas de 12,70 mm, largeur int\u00e9rieure de 6,35 mm) est l'\u00e9quivalent \u00e9tanche. Il utilise le m\u00eame pas et la m\u00eame compatibilit\u00e9 de pignons que le mod\u00e8le 420, mais avec une construction \u00e0 bagues pleines et des joints toriques \u00e0 chaque articulation, ce qui allonge les intervalles de lubrification \u00e0 600\u20131\u00a0000 km et offre une dur\u00e9e de vie consid\u00e9rablement plus longue en conditions humides ou hors route. Contactez-nous pour conna\u00eetre la disponibilit\u00e9 et les sp\u00e9cifications techniques.<\/p>\n<p><strong>Combien de maillons comporte g\u00e9n\u00e9ralement une cha\u00eene 420\u00a0?<\/strong><br \/>\nLink count varies by machine \u2014 it depends on the rear wheel travel distance (distance from front to rear sprocket) and the sprocket tooth counts. Common 420 link counts for 50\u2013125cc machines range from 96 to 120 links, but confirm the exact count from your owner&#8217;s manual or by counting the links on the removed chain. Ordering the wrong link count requires adding or removing links at the master link, which is possible but adds a step to the installation.<\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550 REVIEWS \u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(18px,2.5vw + 11px,26px); color: #1a3c6e; border-left: 4px solid #e8a020; padding-left: 12px; margin-top: 40px; margin-bottom: 16px;\">Avis clients<\/h2>\n<div style=\"font-size: clamp(14px,2vw + 10px,18px); line-height: 1.8;\">\n<p><strong>Park Jae-woo<\/strong>Responsable de la flotte de scooters, S\u00e9oul (f\u00e9vrier 2025)<br \/>\n&#8220;We run 15 delivery scooters on 420 chains with a monthly replacement rotation. The quality from Korea Ever-Power is consistent batch to batch \u2014 same stretch characteristics, same installation fit. Our maintenance cost per bike has been stable since switching. No quality-related chain failures in eight months.&#8221;<\/p>\n<hr style=\"border: none; border-top: 1px solid #d0dce8; margin: 16px 0;\" \/>\n<p><strong>Kim Hyun-ki<\/strong>, Pit Bike Racer, Gyeonggi-do (janvier 2025)<br \/>\n&#8220;Running a 420 on a 110cc pit bike at club events. The chain is noticeably lighter than the 428 I used to run \u2014 on a 65kg machine the weight difference in rotating components is actually relevant. Korea Ever-Power&#8217;s 420 holds tension consistently across a weekend of track use. Lubing between sessions keeps it in good shape.&#8221;<\/p>\n<hr style=\"border: none; border-top: 1px solid #d0dce8; margin: 16px 0;\" \/>\n<p><strong>Lee Young-hoon<\/strong>\u00c9tudiant(e) navetteur(euse), Daejeon (d\u00e9cembre 2024)<br \/>\n&#8220;Fitted a 420 on my 50cc moped myself \u2014 no experience beforehand, but the installation is straightforward. The chain came with a clip link and installed without issues. Running it every day for four months, lubing every 400 km. No tension problems and no rust, even through the rainy stretch in December.&#8221;<\/p>\n<hr style=\"border: none; border-top: 1px solid #d0dce8; margin: 16px 0;\" \/>\n<p><strong>Choi Tae Jin<\/strong>D\u00e9taillant de pi\u00e8ces d\u00e9tach\u00e9es pour motos, Busan (novembre 2024)<br \/>\n&#8220;The 420 is one of our top-moving SKUs for the small scooter and moped market. Korea Ever-Power&#8217;s supply is reliable and the quality is consistently acceptable to our customers. We&#8217;ve had very few returns on this chain \u2014 the occasional dimensional query is always resolved quickly by their team.&#8221;<\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550 PACKING AND SHIPPING \u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(18px,2.5vw + 11px,26px); color: #1a3c6e; border-left: 4px solid #e8a020; padding-left: 12px; margin-top: 40px; margin-bottom: 16px;\">Emballage et exp\u00e9dition<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3484\" style=\"max-width: 100%; height: auto; display: block; margin: 12px 0; border-radius: 6px;\" title=\"emballage et exp\u00e9dition de cha\u00eenes de moto\" src=\"https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/motorcycle-chain-packing-and-shipping.webp\" alt=\"emballage et exp\u00e9dition de cha\u00eenes de moto\" width=\"1402\" height=\"1121\" srcset=\"https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/motorcycle-chain-packing-and-shipping.webp 1402w, https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/motorcycle-chain-packing-and-shipping-1280x1023.webp 1280w, https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/motorcycle-chain-packing-and-shipping-980x784.webp 980w, https:\/\/motorcyclechain.top\/wp-content\/uploads\/2026\/04\/motorcycle-chain-packing-and-shipping-480x384.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1402px, 100vw\" \/><\/p>\n<\/div>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Cha\u00eene moto 420\u00a0\u2014 Pas de 12,7\u00a0mm, largeur int\u00e9rieure de 6,35\u00a0mm, bague h\u00e9lico\u00efdale, r\u00e9sistance \u00e0 la traction de 15,6\u00a0kN, masse lin\u00e9ique de 0,57\u00a0kg\/m. Con\u00e7ue pour les scooters, motos tout-terrain, quads et v\u00e9hicules tout-terrain l\u00e9gers de 50 \u00e0 125\u00a0cm\u00b3. Comprend un guide de s\u00e9lection des pas (420, 428 et 520) et un programme de lubrification.<\/p>","protected":false},"featured_media":3589,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[2874],"product_tag":[],"class_list":{"0":"post-3586","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-motorcycle-chain","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/motorcyclechain.top\/fr\/wp-json\/wp\/v2\/product\/3586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/motorcyclechain.top\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/motorcyclechain.top\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/motorcyclechain.top\/fr\/wp-json\/wp\/v2\/comments?post=3586"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/motorcyclechain.top\/fr\/wp-json\/wp\/v2\/media\/3589"}],"wp:attachment":[{"href":"https:\/\/motorcyclechain.top\/fr\/wp-json\/wp\/v2\/media?parent=3586"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/motorcyclechain.top\/fr\/wp-json\/wp\/v2\/product_brand?post=3586"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/motorcyclechain.top\/fr\/wp-json\/wp\/v2\/product_cat?post=3586"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/motorcyclechain.top\/fr\/wp-json\/wp\/v2\/product_tag?post=3586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}