"Knowing about tyre tread sizes"
"Pirelli Tyres Cheltenham, Tyres Cheltenham"
[ "How to ReadCycle Tyre Sizes?Have you got a new bike for yourself? Ridinga bike is a wonderful experience but it is equally confusing to understand thedetails of it. And when it comes to reading the tyre size of your bike, it seemsall Greek to you which is quite exhausting. But once you know the ways ofreading it, it will be duck soup for you. So let us first understand thedetails of a cycle and its tyres to have a comprehensive understanding of thematter.Why is the Confusion?It is not unnatural to come across atyre marking and not feel confused. There are enough reasons for it. This isbecause at times you will see that tyres having a size like 26 are actuallynot the same as 26 inches in diameter. Then again you might find that one tyreis marked having a size of 25x1.5 but you cannot consider it to be the same as25 and 1 1/5, rather they are two absolutely different sizes in reality. This problemexists because of the unorganised nature of the marking system followedtraditionally by the producers. Perhaps, you will find the modern day Tyres Cheltenham marking system much easierto understand as it is done following the International Standards Organization (ISO)system which brings an order in it. But this does not mean that you dont needto know the old style as many tyre producers are yet to completely adapt to thenew marking style and works the old way. So let us dive straight into thelearning of it.How to Read It?If you are looking at a tyre with anISO marking on it, then you need to apply the rules of ISO size reading. So letus start there. In this method you will find two numbers which are separated bya dash in between. Now the 3 digit number marked just after the dash is whatindicates the bead diameter of the tyre. If you know the bead diameter of your Pirelli Tyres Cheltenham and match itwith your vehicles requirement then you can definitely have no issues fittingit on the rim. But this might not be right to do if other factors are not amatch for your bike. Now coming to the front section of the marking which isthe number before the dash, it is indicative of the tyre section. This twodigit number is the approximate tyre width. But interestingly the tyre height correspondsto the tyre section quite well as the overall diameter is twice of the sectionadded with the bead diameter. In this way you can easily measure the tyre size.In the traditional way or the Americanor Imperial way of tyre size measuring. In fact all the American and Japanesetyre manufacturers follow the old ways. As mentioned before in this method evenif two sizes look similar, they are not the same. Here rises the confusion ifyou find a 26x1.5 and another tyre with 26x1 1/5, they will definitely notmatch. This is mainly because of the difference in value of a decimal and fractionnumber. There is no doubt that the fractional number will be at least 1 inchmore than the decimal value; which means that a tyre marked as 26x1  is largerin width than the one marked as 26x1.5." ]