The code 235/60 R18 is an alphanumeric sequence that describes the tyre's size and construction. Here's the breakdown:
- 235: This number represents the tyre's section width in millimeters from sidewall to sidewall.
- 60: This is the aspect ratio, expressed as a percentage. It represents the height of the tyre's sidewall as 60% of the tyre's width.
- R: This letter indicates the tyre's construction type. "R" stands for radial, meaning the tyre's internal cords run radially from the centre.
- 18: This number represents the diameter of the wheel in inches that the tyre is designed to fit.