What does 265/65r17 mean?
1 Answers
265/65r17 is the specification of a tire. 265 refers to the tire width of 265mm, 65 refers to the aspect ratio, meaning the section height is 65% of the width. R indicates that the tire is a radial tire, and 17 means the rim diameter is 17 inches. Tires with a high aspect ratio have longer sidewalls, providing better cushioning and relatively more comfort, but weaker resistance during turns. Conversely, tires with a low aspect ratio and large inner diameter have shorter sidewalls and wider treads, resulting in a larger contact area and the ability to withstand greater pressure. They are more sensitive to the road surface and offer greater lateral resistance during turns. The normal tire pressure for a car ranges between 230-250kpa. However, the specific normal tire pressure should be based on the manufacturer's recommended value, which can usually be found in the vehicle's user manual, on the label near the driver's side door (B-pillar), in the drawer next to the driver's seat, or on the fuel tank cap. Car owners should develop the habit of regularly checking tire pressure. If the tire pressure frequently exceeds 20% of the normal pressure, the tire's lifespan will decrease by 10%; if it frequently falls below 30% of the normal pressure, the tire's lifespan will be reduced by 52%.
