What does tire 175/70r14 mean?
2 Answers
175 indicates the tire width: the tire width is 175 millimeters. 70 is called the tire's aspect ratio, meaning the ratio of the sidewall height to the tire width is 70%. R is the international code for radial tires, representing "radial tire". 14 refers to the rim diameter of 14 inches. Below is relevant information about tires: 1. Tire specifications are commonly represented by a set of numbers, where the first number indicates the tire section width, and the latter represents the rim diameter in inches. For example, 165/70R14 means a radial tire with a width of 165mm, an aspect ratio of 70, and a rim diameter of 14 inches. 2. Some tires may contain additional letters or symbols with special meanings: "X" indicates a high-pressure tire; "C" denotes a reinforced type; "B" represents a bias-ply tire; "-" signifies a low-pressure tire. M and S are abbreviations for Mud and Snow in English, indicating that the tire is suitable for use on snowy, icy, and muddy roads.
Seeing the numbers 175/70R14 printed on the tire, I figured this is the tire's ID. The 175 refers to the tire's cross-sectional width of 175 millimeters, about the width of an adult man's palm. The number 70 represents the aspect ratio, meaning the tire's sidewall height is 70% of its width, approximately 12 centimeters tall. The R stands for radial construction, which is used in about 90% of family cars today. The 14 indicates a wheel rim diameter of 14 inches, roughly 35.5 centimeters. This specification is quite common in small cars, featuring thick sidewalls that make driving over speed bumps less bumpy. At high speeds, these tires produce less noise compared to low-profile tires and are less prone to bulging when hitting curbs, offering excellent durability. However, they do provide less cornering support.
