What does 909012 mean for tires?
1 Answers
909012 tire means a width of 90mm, an aspect ratio of ninety percent, a radial tire thickness of 81mm, and a rim size of 12 inches. Below is an introduction to tires: 1. Functions of tires: Mainly include dry grip, hydroplaning resistance, providing comfort, reducing driving noise, impact resistance, wet grip, load-bearing capacity, handling ability, average wear, and mileage. 2. Tire cross-section structure: Generally can be divided into 4 parts: tread, shoulder, sidewall, and bead. Each part has its own function. The tread mainly contacts the ground, the shoulder and sidewall provide support, and the bead contacts the rim to provide sealing. 3. Internal composition of tires: The inside of the tire is composed of multiple layers of different materials, including tread pattern, overlay, steel belt, stress absorption rubber strip, carcass ply layer, and inner liner.