Buy 18 Inch Tyres Online
18 INCH TYRES
The 18 inch tyre is designed for sports cars and new performance SUV’s as well as luxury vehicles. The 18inch tyre range covers tyres that exhibit extreme toughness and durability appropriate for off-road driving, to the supreme control and crisp response of sporty road cars. The 18inch tyre generally comes with an extended tread life and superior cornering stability.
The description of 18 inch refers to the final number on the alphanumeric digits that describe the measurements of a tyre. These last two digits sometimes with a decimal number at the end are specific to the diameter of the tyre. The first measurement, (three digits), is measured in millimetres and refers to the width of the ground-facing wall of the tyre. The second measurement, (two digits), and sometimes a letter as well, refers to the ratio, (%), of the side-wall to the width of the ground-facing wall. The letter is a further specification relating to tyre construction or speed rating.
Popular 18 inch Tyre Sizes
- 100/100R18
- 100/80R18
- 100/90R18
- 110/100R18
- 110/80R18
- 110/90R18
- 120/100R18
- 120/70R18
- 120/80R18
- 120/90R18
- 125/60R18
- 125/70R18
- 130/60R18
- 130/70R18
- 130/80R18
- 130/90R18
- 135/80R18
- 140/70R18
- 140/80R18
- 145/70R18
- 145/80R18
- 150/60R18
- 150/70R18
- 155/60R18
- 155/85R18
- 155/90R18
- 160/60R18
- 165/35R18
- 165/40R18
- 165/60R18
- 165/65R18
- 165/90R18
- 175/45R18
- 180/55R18
- 195/35R18
- 195/60R18
- 2.75/55R18
- 200/50R18
- 205/35R18
- 205/40R18
- 205/45R18
- 210/40R18
- 215/35R18
- 215/40R18
- 215/45R18
- 215/50R18
- 215/55R18
- 225/35R18
- 225/40R18
- 225/45R18
- 225/50R18
- 225/55R18
- 225/60R18
- 225/65R18
- 235/30R18
- 235/35R18
- 235/40R18
- 235/45R18
- 235/50R18
- 235/55R18
- 235/60R18
- 235/65R18
- 240/40R18
- 245/35R18
- 245/40R18
- 245/45R18
- 245/50R18
- 245/55R18
- 245/60R18
- 245/65R18
- 250/40R18
- 255/30R18
- 255/35R18
- 255/40R18
- 255/45R18
- 255/50R18
- 255/55R18
- 255/60R18
- 255/65R18
- 255/70R18
- 260/40R18
- 265/35R18
- 265/40R18
- 265/45R18
- 265/60R18
- 265/65R18
- 265/70R18
Find Tyre Size by Rim Diameter
Already Know Your Tyre Size? Enter here to see our range
Quick Tyre Finder
Where to Find Your Tyre Size
Locate Your Tyre Size Quickly
Your tyre size is listed on the sidewall of your tyres or in your vehicle's manual. It is presented as an alphanumeric list, with each number or letter representing a specific dimension of the tyre.
Here's what some of these numbers and letters mean:
(225) TYRE WIDTH:This number measures the tyre's width from one sidewall to another in millimeters. For instance, a 225/45 R17 tyre is 225 mm wide.
(45) ASPECT RATIO:This is the number following the slash. It represents the height of the tyre's sidewall as a percentage of its width. So in a 225/45 R17 tyre, the sidewall height is 45% of 225 mm.
(R17) RIM DIAMETER:This is the diameter of the rim in inches. A 225/45 R17 tyre fits on a 17-inch rim.
For a more comprehensive explanation of what each number and letter means, check out our guide: Tyre Number Meanings Explained In Full https://www.tyroola.com.au/guides/what-do-the-numbers-on-tyres-mean/
At Tyroola, we stock a wide variety of tyre sizes to fit different vehicles so if you need more help in choosing the right tyres, please call our customer service team at (02) 8294 9012