{"id":32787,"date":"2026-05-23T23:05:06","date_gmt":"2026-05-23T23:05:06","guid":{"rendered":"https:\/\/radtools24.com\/?post_type=product&#038;p=32787"},"modified":"2026-05-23T23:21:41","modified_gmt":"2026-05-23T23:21:41","slug":"manette-shimano-dura-ace-di2-st-r9250-sti-pour-frein-sur-jante-gauche-2x12-vitesses","status":"publish","type":"product","link":"https:\/\/radtools24.com\/de\/produkt\/manette-shimano-dura-ace-di2-st-r9250-sti-pour-frein-sur-jante-gauche-2x12-vitesses\/","title":{"rendered":"Manette Shimano Dura Ace Di2 ST-R9250 STI pour frein sur jante &#8211; gauche \/ 2&#215;12 vitesses"},"content":{"rendered":"<h1 data-start=\"64\" data-end=\"108\">Levier de frein \/ changement de vitesses<\/h1>\n<h2 data-start=\"109\" data-end=\"188\">Shimano Dura-Ace Di2 ST-R9250 STI \u2013 Frein sur jante \u2013 gauche \u2013 2&#215;12 vitesses<\/h2>\n<p data-start=\"190\" data-end=\"333\">La s\u00e9rie <strong data-start=\"199\" data-end=\"240\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">Shimano Dura-Ace R9200<\/span><\/span><\/strong> repr\u00e9sente le sommet de la technologie route chez <strong data-start=\"291\" data-end=\"332\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">Shimano<\/span><\/span><\/strong>.<\/p>\n<h3 data-start=\"335\" data-end=\"386\">\u00ab Never Compromise \u00bb \u2013 La science de la vitesse<\/h3>\n<p data-start=\"388\" data-end=\"646\">La <strong data-start=\"391\" data-end=\"402\">vitesse<\/strong> a \u00e9t\u00e9 le principe central dans le d\u00e9veloppement de cette nouvelle g\u00e9n\u00e9ration de groupes route <strong data-start=\"497\" data-end=\"512\">12 vitesses<\/strong>.<br data-start=\"513\" data-end=\"516\" \/>Plusieurs ann\u00e9es de recherche ont permis d\u2019introduire des innovations qui rendent le groupe <strong data-start=\"608\" data-end=\"626\">Dura-Ace R9200<\/strong> encore plus rapide.<\/p>\n<p data-start=\"648\" data-end=\"672\">Chaque composant a \u00e9t\u00e9 :<\/p>\n<ul data-start=\"674\" data-end=\"709\">\n<li data-start=\"674\" data-end=\"685\">\n<p data-start=\"676\" data-end=\"685\">repens\u00e9<\/p>\n<\/li>\n<li data-start=\"686\" data-end=\"698\">\n<p data-start=\"688\" data-end=\"698\">optimis\u00e9<\/p>\n<\/li>\n<li data-start=\"699\" data-end=\"709\">\n<p data-start=\"701\" data-end=\"709\">affin\u00e9<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"711\" data-end=\"767\">afin de gagner <strong data-start=\"726\" data-end=\"752\">les secondes d\u00e9cisives<\/strong>, que ce soit :<\/p>\n<ul data-start=\"769\" data-end=\"863\">\n<li data-start=\"769\" data-end=\"809\">\n<p data-start=\"771\" data-end=\"809\">lors d\u2019une <strong data-start=\"782\" data-end=\"809\">attaque dans le peloton<\/strong><\/p>\n<\/li>\n<li data-start=\"810\" data-end=\"863\">\n<p data-start=\"812\" data-end=\"863\">ou lors du <strong data-start=\"823\" data-end=\"862\">sprint final sur les Champs-\u00c9lys\u00e9es<\/strong>.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"865\" data-end=\"868\" \/>\n<h1 data-start=\"870\" data-end=\"908\">Levier Shimano Dura-Ace Di2 ST-R9250<\/h1>\n<p data-start=\"910\" data-end=\"986\">Le <strong data-start=\"913\" data-end=\"943\">Shimano ST-R9250 STI lever<\/strong> est un levier <strong data-start=\"958\" data-end=\"974\">Dual Control<\/strong> combinant :<\/p>\n<ul data-start=\"988\" data-end=\"1044\">\n<li data-start=\"988\" data-end=\"998\">\n<p data-start=\"990\" data-end=\"998\">freinage<\/p>\n<\/li>\n<li data-start=\"999\" data-end=\"1044\">\n<p data-start=\"1001\" data-end=\"1044\">changement de vitesses \u00e9lectronique <strong data-start=\"1037\" data-end=\"1044\">Di2<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1046\" data-end=\"1166\">Contrairement \u00e0 la version pour <strong data-start=\"1078\" data-end=\"1097\">freins \u00e0 disque<\/strong>, cette version est con\u00e7ue pour <strong data-start=\"1129\" data-end=\"1149\">freins sur jante<\/strong>, ce qui permet :<\/p>\n<ul data-start=\"1168\" data-end=\"1243\">\n<li data-start=\"1168\" data-end=\"1194\">\n<p data-start=\"1170\" data-end=\"1194\"><strong data-start=\"1170\" data-end=\"1194\">un poids plus faible<\/strong><\/p>\n<\/li>\n<li data-start=\"1195\" data-end=\"1243\">\n<p data-start=\"1197\" data-end=\"1243\">un syst\u00e8me <strong data-start=\"1208\" data-end=\"1243\">\u00e0 c\u00e2ble m\u00e9canique pour le frein<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1245\" data-end=\"1341\">Malgr\u00e9 cela, l\u2019ergonomie et les mat\u00e9riaux haut de gamme restent identiques aux mod\u00e8les \u00e0 disque.<\/p>\n<hr data-start=\"1343\" data-end=\"1346\" \/>\n<h2 data-start=\"1348\" data-end=\"1372\">Ergonomie et contr\u00f4le<\/h2>\n<p data-start=\"1374\" data-end=\"1395\">Les leviers offrent :<\/p>\n<ul data-start=\"1397\" data-end=\"1564\">\n<li data-start=\"1397\" data-end=\"1442\">\n<p data-start=\"1399\" data-end=\"1442\">un <strong data-start=\"1402\" data-end=\"1442\">clic de changement de vitesse pr\u00e9cis<\/strong><\/p>\n<\/li>\n<li data-start=\"1443\" data-end=\"1494\">\n<p data-start=\"1445\" data-end=\"1494\">des passages de vitesses <strong data-start=\"1470\" data-end=\"1494\">rapides et intuitifs<\/strong><\/p>\n<\/li>\n<li data-start=\"1495\" data-end=\"1533\">\n<p data-start=\"1497\" data-end=\"1533\">une <strong data-start=\"1501\" data-end=\"1533\">forme optimis\u00e9e des cocottes<\/strong><\/p>\n<\/li>\n<li data-start=\"1534\" data-end=\"1564\">\n<p data-start=\"1536\" data-end=\"1564\">une excellente <strong data-start=\"1551\" data-end=\"1564\">adh\u00e9rence<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1566\" data-end=\"1626\">La structure de surface des cocottes et du levier am\u00e9liore :<\/p>\n<ul data-start=\"1628\" data-end=\"1692\">\n<li data-start=\"1628\" data-end=\"1646\">\n<p data-start=\"1630\" data-end=\"1646\">la prise en main<\/p>\n<\/li>\n<li data-start=\"1647\" data-end=\"1692\">\n<p data-start=\"1649\" data-end=\"1692\">la transmission de la puissance de freinage<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1694\" data-end=\"1810\">Ils disposent \u00e9galement d\u2019un <strong data-start=\"1723\" data-end=\"1763\">r\u00e9glage de port\u00e9e (reach adjustment)<\/strong> pour s\u2019adapter \u00e0 diff\u00e9rentes tailles de mains.<\/p>\n<hr data-start=\"1812\" data-end=\"1815\" \/>\n<h1 data-start=\"1817\" data-end=\"1862\">Personnalisation avec l\u2019application Shimano<\/h1>\n<p data-start=\"1864\" data-end=\"1909\">Le levier est compatible avec l\u2019application :<\/p>\n<ul data-start=\"1911\" data-end=\"1954\">\n<li data-start=\"1911\" data-end=\"1954\">\n<p data-start=\"1913\" data-end=\"1954\"><strong data-start=\"1913\" data-end=\"1954\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">Shimano E-Tube Project<\/span><\/span><\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1956\" data-end=\"1979\">Elle permet de r\u00e9gler :<\/p>\n<ul data-start=\"1981\" data-end=\"2099\">\n<li data-start=\"1981\" data-end=\"2013\">\n<p data-start=\"1983\" data-end=\"2013\">modes de changement de vitesse<\/p>\n<\/li>\n<li data-start=\"2014\" data-end=\"2047\">\n<p data-start=\"2016\" data-end=\"2047\">vitesse de passage des vitesses<\/p>\n<\/li>\n<li data-start=\"2048\" data-end=\"2073\">\n<p data-start=\"2050\" data-end=\"2073\">assignation des boutons<\/p>\n<\/li>\n<li data-start=\"2074\" data-end=\"2099\">\n<p data-start=\"2076\" data-end=\"2099\">fonctions des commandes<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2101\" data-end=\"2104\" \/>\n<h1 data-start=\"2106\" data-end=\"2120\">Connectivit\u00e9<\/h1>\n<p data-start=\"2122\" data-end=\"2148\">Les leviers disposent de :<\/p>\n<ul data-start=\"2150\" data-end=\"2172\">\n<li data-start=\"2150\" data-end=\"2172\">\n<p data-start=\"2152\" data-end=\"2172\"><strong data-start=\"2152\" data-end=\"2172\">2 ports EW-SD300<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2174\" data-end=\"2190\">Ils permettent :<\/p>\n<ul data-start=\"2192\" data-end=\"2331\">\n<li data-start=\"2192\" data-end=\"2250\">\n<p data-start=\"2194\" data-end=\"2250\">connexion \u00e0 la batterie <strong data-start=\"2218\" data-end=\"2250\">Shimano BT-DN300 Di2 battery<\/strong><\/p>\n<\/li>\n<li data-start=\"2251\" data-end=\"2331\">\n<p data-start=\"2253\" data-end=\"2331\">connexion \u00e0 des <strong data-start=\"2269\" data-end=\"2297\">shifters suppl\u00e9mentaires<\/strong> sur le guidon (vendus s\u00e9par\u00e9ment)<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2333\" data-end=\"2336\" \/>\n<h1 data-start=\"2338\" data-end=\"2373\">Technologie Shimano Synchro-Shift<\/h1>\n<p data-start=\"2375\" data-end=\"2479\">La technologie <strong data-start=\"2390\" data-end=\"2431\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">Shimano Synchro-Shift<\/span><\/span><\/strong> simplifie \u00e9norm\u00e9ment le changement de vitesses.<\/p>\n<p data-start=\"2481\" data-end=\"2584\">Elle r\u00e9duit les d\u00e9cisions \u00e0 prendre pendant l\u2019effort, ce qui est particuli\u00e8rement utile en comp\u00e9tition.<\/p>\n<h3 data-start=\"2586\" data-end=\"2607\">Modes disponibles<\/h3>\n<p data-start=\"2609\" data-end=\"2624\"><strong data-start=\"2609\" data-end=\"2624\">Mode manuel<\/strong><\/p>\n<ul data-start=\"2626\" data-end=\"2679\">\n<li data-start=\"2626\" data-end=\"2679\">\n<p data-start=\"2628\" data-end=\"2679\">contr\u00f4le ind\u00e9pendant du d\u00e9railleur avant et arri\u00e8re<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2681\" data-end=\"2703\"><strong data-start=\"2681\" data-end=\"2703\">Full Synchro-Shift<\/strong><\/p>\n<ul data-start=\"2705\" data-end=\"2829\">\n<li data-start=\"2705\" data-end=\"2752\">\n<p data-start=\"2707\" data-end=\"2752\">un seul levier contr\u00f4le toute la transmission<\/p>\n<\/li>\n<li data-start=\"2753\" data-end=\"2829\">\n<p data-start=\"2755\" data-end=\"2829\">le d\u00e9railleur avant s\u2019ajuste automatiquement selon les changements arri\u00e8re<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2831\" data-end=\"2853\"><strong data-start=\"2831\" data-end=\"2853\">Semi Synchro-Shift<\/strong><\/p>\n<ul data-start=\"2855\" data-end=\"2981\">\n<li data-start=\"2855\" data-end=\"2896\">\n<p data-start=\"2857\" data-end=\"2896\">lors d\u2019un changement du plateau avant<\/p>\n<\/li>\n<li data-start=\"2897\" data-end=\"2981\">\n<p data-start=\"2899\" data-end=\"2981\">le d\u00e9railleur arri\u00e8re ajuste automatiquement la cassette pour maintenir la cadence<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2983\" data-end=\"2986\" \/>\n<h1 data-start=\"2988\" data-end=\"3017\">Caract\u00e9ristiques techniques<\/h1>\n<ul data-start=\"3019\" data-end=\"3295\">\n<li data-start=\"3019\" data-end=\"3051\">\n<p data-start=\"3021\" data-end=\"3051\"><strong data-start=\"3021\" data-end=\"3035\">Position :<\/strong> levier gauche<\/p>\n<\/li>\n<li data-start=\"3052\" data-end=\"3091\">\n<p data-start=\"3054\" data-end=\"3091\"><strong data-start=\"3054\" data-end=\"3072\">Transmission :<\/strong> \u00e9lectronique Di2<\/p>\n<\/li>\n<li data-start=\"3092\" data-end=\"3129\">\n<p data-start=\"3094\" data-end=\"3129\"><strong data-start=\"3094\" data-end=\"3113\">Configuration :<\/strong> 2&#215;12 vitesses<\/p>\n<\/li>\n<li data-start=\"3130\" data-end=\"3177\">\n<p data-start=\"3132\" data-end=\"3177\"><strong data-start=\"3132\" data-end=\"3143\">Frein :<\/strong> m\u00e9canique pour freins sur jante<\/p>\n<\/li>\n<li data-start=\"3178\" data-end=\"3211\">\n<p data-start=\"3180\" data-end=\"3211\"><strong data-start=\"3180\" data-end=\"3192\">Guidon :<\/strong> route (drop bar)<\/p>\n<\/li>\n<li data-start=\"3212\" data-end=\"3234\">\n<p data-start=\"3214\" data-end=\"3234\"><strong data-start=\"3214\" data-end=\"3227\">Couleur :<\/strong> noir<\/p>\n<\/li>\n<li data-start=\"3235\" data-end=\"3263\">\n<p data-start=\"3237\" data-end=\"3263\"><strong data-start=\"3237\" data-end=\"3251\">Mat\u00e9riau :<\/strong> composite<\/p>\n<\/li>\n<li data-start=\"3264\" data-end=\"3295\">\n<p data-start=\"3266\" data-end=\"3295\"><strong data-start=\"3266\" data-end=\"3277\">Poids :<\/strong> environ <strong data-start=\"3286\" data-end=\"3295\">230 g<\/strong><\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"3297\" data-end=\"3300\" \/>\n<p data-start=\"3302\" data-end=\"3316\">","protected":false},"excerpt":{"rendered":"<h1 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