Every tire is carefully assessed by trained inspectors. Special machines are also used, designed to spot even slight imperfections. Quality control engineers randomly select tires from the line and cut them open for closer inspection. In addition to this, some tires are chosen off the line and x-rayed individually, to check for internal weaknesses. All tires must meet strict Fulda standards.
Ply: The skeleton of your tire is composed of layers of fabric known as plies. Plies reduce elasticity while keeping the tire flexible. They are normally made of rubber-coated cords formed by woven fibers. Your tire is made stronger with a layer called a carcass ply, which is laid directly above the tire’s inner liner.
Belt: Woven sheets of steel wires are coated in rubber and placed around the tire. These belts offer rigidity and reinforce your tire’s strength. For added durability and enhanced puncture resistance, some tire models include Kevlar cord
Shoulder: A tire’s shoulder is a small beveled edge between the tread and the sidewall. It plays an important part in cornering control.
Sipe and groove: Your tire disperses water thanks to the deep grooves that separate the tread blocks. The smaller grooves in the tread blocks are called sipes, which are important for gripping snow and ice in winter.
Beads: These form the airtight seal between the rim of the wheel and your tire. They’re made from braided high-strength steel that is coated in rubber.
Sidewall: The outside of your sidewall gives the manufacturer information you need to know about your tire. The sidewall itself runs from the bead to the tread. This area of extra-thick rubber provides lateral stability.
Tread: The tread is where the rubber meets the road, giving you both grip and cushioning. Many of your tire’s most important features depend on the rubber compound and design of its tread.
Rib: This reinforcing rib is used in some tires. It runs down the center, which is the weakest area of the tire.