{"id":4066,"date":"2018-04-25T11:47:51","date_gmt":"2018-04-25T09:47:51","guid":{"rendered":"https:\/\/www.gova.fr\/non-classifiee\/reading-a-tire-the-right-way\/"},"modified":"2018-04-25T11:47:51","modified_gmt":"2018-04-25T09:47:51","slug":"reading-a-tire-the-right-way","status":"publish","type":"post","link":"https:\/\/www.gova.fr\/en\/actualite\/reading-a-tire-the-right-way\/","title":{"rendered":"Reading a tire the right way"},"content":{"rendered":"<p><strong>You&#8217;re thinking about changing your tires, but you&#8217;re having trouble navigating the combination of numbers and letters you see on your tires. However, a small mistake can cost you dearly. So how do you read a tire? We will try to answer them here.<\/strong><\/p>\n<h2>Read a tire<\/h2>\n<p>You&#8217;ve found a tire that fits your budget and you&#8217;re thinking of trading in your old ones for these new ones. When you change your tire, it is very important to know its characteristics.<\/p>\n<p>To better explain, let&#8217;s take as an example a tire that says <strong>225\/55R17 97W<\/strong>.<\/p>\n<ul>\n<li><strong>Here<\/strong>, <strong>the 225 indicates the width of the tire<\/strong>. Remember that this measurement is expressed in millimeters. We can therefore say that this tire is 225 cm wide.<\/li>\n<li><strong>The 55 indicates the height of the sidewall in relation to the width of the tire.<\/strong>  Here, the sidewall height is 55% of the tire width. It should be noted that the higher the sidewall, the less grip the tire will have when cornering. But the ride is more comfortable.<\/li>\n<li><strong>As for the R, it indicates the structure of the tire.<\/strong>  Here the R stands for Radial, which is the most used nowadays. Remember that there are three tire structures: the Radial, the diagonal structure expressed in D which is gradually disappearing from the market, and the B structure or Bias Belted.<\/li>\n<li><strong>The 17 indicates the surface of the inside of the tire.<\/strong>  In other words, it is the size of the rim. It is usually expressed in inches.<\/li>\n<li><strong>The 97 is the load index<\/strong>, which is the load the tire can support when inflated to the safe limit. Please note that a load index of 97 does not mean that the tire can only support 97kgs. In fact, we have to go back to a correspondence table. According to this table, the index 97 is equivalent to a load of 730kgs. In general, you may well opt for a different load index for your new tire. Be careful, however, to take a tire with a higher load index than your old tire for more safety.<\/li>\n<li><strong>The W is an index of speed.<\/strong>  It indicates the speed at which the tire is considered safe. These speeds are expressed with indices between A which is the lowest and Y which is the highest. In this example, the W corresponds to a speed of <strong>270km\/h<\/strong>. You can choose a tire with a higher speed rating than your old tire. But if you choose a lower index than the previous one, it will affect the handling of your car.<\/li>\n<\/ul>\n<h2>All you need to know<\/h2>\n<p>There are other markings used for tires.<\/p>\n<ul>\n<li><strong>M+S<\/strong>, is a marking which means that the tire is certified &#8220;snow&#8221; according to the European standard.<\/li>\n<li><strong>The 3PMSF or 3 Peaks Mountain Snow Flake<\/strong> indicates that the tire is reserved for snowy roads. Unlike the M+S tires, these tires have already been tested.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>You&#8217;re thinking about changing your tires, but you&#8217;re having trouble navigating the combination of numbers and letters you see on your tires. However, a small mistake can cost you dearly. So how do you read a tire? We will try to answer them here. Read a tire You&#8217;ve found a tire that fits your budget &hellip; <a href=\"https:\/\/www.gova.fr\/en\/actualite\/reading-a-tire-the-right-way\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Reading a tire the right way<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":3612,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"9","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[243],"tags":[],"class_list":["post-4066","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/www.gova.fr\/en\/wp-json\/wp\/v2\/posts\/4066","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gova.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gova.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gova.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gova.fr\/en\/wp-json\/wp\/v2\/comments?post=4066"}],"version-history":[{"count":0,"href":"https:\/\/www.gova.fr\/en\/wp-json\/wp\/v2\/posts\/4066\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gova.fr\/en\/wp-json\/wp\/v2\/media\/3612"}],"wp:attachment":[{"href":"https:\/\/www.gova.fr\/en\/wp-json\/wp\/v2\/media?parent=4066"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gova.fr\/en\/wp-json\/wp\/v2\/categories?post=4066"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gova.fr\/en\/wp-json\/wp\/v2\/tags?post=4066"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}