"Everything You've Ever Wanted to Know About WINTER TYRES"
"Dunlop Tyres Leamington Spa, Car Tyres Leamington Spa"
[ "Everything You've Ever Wanted to Know About WINTER TYRES;The "Size" of your Tyres is the most critical factor in getting maximum performance from them. You can have two Dunlop Tyres Leamington Spa with the same circumference, but they'll roll faster if one has a bigger diameter than the other. This next section will explain why that is so and determine what size you need for races like the 24 Hours of Lemons.BASIC RULES OF TYRE SIZING:The legal limit on tyre width varies by country, but (in Europe at least) it's 255mm wide (wider tyres are possible, but they're almost certainly illegal)For example, some BMW E30s use 215/65-15 tyres, which have a width of 215mm, and a diameter of 65". The 15" is how you can tell this is an American size - the tyre's diameter in inches. Since it's not metric, it doesn't follow any formula to calculate its real-world size.Tyre width increases are usually linear across the tyre's height - if you go up to fifty per cent from your starting point (say 205mm to 255mm), your cross-sectional area will increase by 50%. This is why bigger tyres generally provide more grip and create problems with weight transfer, rolling resistance, and sidewall flex.Larger tyres have larger diameters for their given widths - so your 215/65-15 tyre will be about 1.4% longer than a 215mm-wide tyre.Generally, the taller the sidewall of your tyre is, the more comfortable your ride will be. The trade-off for this comfort is less grip. Taller tyres are usually heavier, too - though that's not always true because some manufacturers use lightweight construction methods to reduce their weight without sacrificing too much stiffness or grip.TRICKS WITH THIS SYSTEM:The "35" in 245/35R18 could mean several things, depending on whether it's American, European, or Japanese tyre size. An E36 BMW uses 245/40R17 tyres (OEM), which have a width of 245mm and a diameter of 40". The "35" is how you can tell this is an American style of tyre - the tyre's circumference in inches.A 245/35R18 tyre will be significantly shorter than the 245/40R17 due to its smaller width and larger radius (equal). It'll also have a smaller sectional area, giving it a worse grip for cornering at speedThat doesn't mean it won't work on your E36, though. If you're looking for something that works well on track or autocross, buy tyres based on their actual dimensions (in millimetres)If you want some cheap rubber to make your car look better while saving fuel and road noise, then buy them based on their American sizing. The important thing is to not mix and match tyres with different size designations.Another trick tyre manufacturers use is naming conventions specific to particular car companies - like the "M" for Mercedes or "Yokohama" for Yokohama tyres (yup, just like that one soft drink company). These are referential marketing terms that allow yuppies to tell each other how much money they spend on their cars without having a clue what they're talking aboutSome tyre makers make a big deal out of a particular tyre's dry or wet performance. Still, these numbers aren't relevant unless you're racing at the Nurburgring in Germany on wet asphalt - if that's ever even physically possible.HOW TO DETERMINE A TYRE'S ACTUAL DIMENSIONS:It's hard to find the tyre's actual dimensions because most manufacturers don't list them - it's easier to go by size designations instead, so they can keep their model ranges simply. But if you need to know for whatever reason, there are a few tricks you can use.Look up your car online and find its tyre size (if it can be found). Sometimes there'll even be photos of the tyres on an actual car, which will show you what sort of construction they used (radial or cross-ply). You might even get lucky and find the weight rating too. Were you researching your car online for fun? You're an otaku!Look up the tyre specifications for similar models of your car. It's not that easy to find, but if you look hard enough, you can usually find a list of dimensional specs somewhere on the manufacturer's website. If you want some extra help finding stuff on any vehicle, read our article " How To Geek About Cars. "Go by size designations from whatever countries they're legal in - US sizing, European sizing, or Australian/Japanese/Chinese sizing (whenever it's different). Just make sure all of your tyres have the same designation and never mix them with tyres from another countryNote: Sometimes, these sizes are more strict than regular American dimensions, but that's even better because it means they're more specific to your Car Tyres Leamington Spa." ]