What does motorcycle tires 90-90-18 mean?
18 is the inner diameter of the tire (or the appropriate outer diameter of the rim), in inches.
This is the type of tire. 90 / 90-18 of the tires, the front of the 90 refers to the tire width is 90 mm,
Refers to the type of tire, 90 / 90-18 of the tire, the front of the 90 refers to the tire width is 90 mm, followed by 90 refers to the flat rate, that is, the height of the tire is 90% of the width of the rear 18 is the tire diameter (Or the appropriate outer diameter of the rim), in inches.
