i thought we could start a thread, as i see so many people asking what tires to put on their cars ,hopefully that will help the majority of people
more then happy for anyone to add more information , that would be great
people having 17" wheel its recommended 225/45/R17/Y
18" wheels at 225/40/R18/Y
Basically this states how fast the tire will go without popping of or the sort i usually go for 'Y' rating
Speed Rating Mile/Hour Kilometers/Hour Speed Rating Miles/Hour Kilometers/Hour N 87 140 U 124 200 P 93 150 H 130 210 Q 99 160 V 149 240 R 106 170 Z 150+ 240+ S 112 180 W 168 270 T 118 190 Y 186 300
Load Rating: Basically how much a tire will hold per corner , usually you should take into account the weight of the car, the extra load on the tire going around a bend, and with the maximum amount of people in your car , if not im not mistaken you always want to have it holding 300 or may 400 kgs then the car
Tyre Sidewall Explained
http://www.blackcircles.com/images/t...p/sidewall.jpgYou will find the size of a tyre on its sidewall. With a quick explanation as to what the different numbers mean, you will see that it is very quick and very easy to find out a tyre's size.
Looking at the following image, you will see the mixture of letters and numbers: "205 55 R16 91 W"
We have broken down each section in the following table, explaining what each number/letter means:
Sidewell Marking Explanation 205 Width of the tyre in millimetres 55 Height of the tyre sidewall as a percentage of the width. In this case 55% of 205mm. Also know as the aspect ratio. R Radial Construction 16 The diameter of the tyre's inner rim in inches 91 Load Rating of the Tyre. In this case its 615kg W Speed Rating. Indicates the maximum speed for the tyre when at full load. In this case 168 mph. E4 ECE type approval mark, which demonstrates the tyre has been tested as high quality by the European Regulatory Authorities. All Tyres sold by Blackcircles.com carry this mark.
this info was all taken from Tyres Online | Cheap Tyres | Winter Tyres & Car Servicing UK