The markings ‘106T’ on a tire indicate its load index (106) and speed rating (T). The load index 106 corresponds to a maximum load capacity of 950 kg (2,094 lbs), while the speed rating T indicates a maximum safe speed of 190 km/h (118 mph). These standardized codes help ensure proper tire selection for vehicle safety and performance.
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Mounting and balancing tires are essential automotive services that ensure a tire is properly installed on a wheel and that the assembled wheel‑tire unit rotates without causing vibration. The processes involve specific tools and affect vehicle handling, tire wear, and safety.
A/T on tires stands for All-Terrain, a designation for tires designed to perform well both on paved roads and on light off-road surfaces. These tires feature a more aggressive tread pattern than standard highway tires, balancing traction, durability, and on-road comfort. A/T tires are commonly used on SUVs, pickup trucks, and crossovers that occasionally venture off-road.
The Service Tire Monitor warning indicates a malfunction in the vehicle’s tire pressure monitoring system (TPMS), not low tire pressure. It typically requires diagnostic attention to restore proper function.
Yellow and red dots on tires are factory markings that indicate the tire’s lightest point and the point of maximum radial force variation, respectively. These markings help technicians align the tire with the wheel’s corresponding high or low spots to minimize vibration during rotation.
TPMS calibration refers to the process of resetting or programming a vehicle’s Tire Pressure Monitoring System to correctly detect and display tire pressure. It ensures the system accurately monitors tire conditions for safety and performance.
A tire bubble indicates structural damage to the internal sidewall layers, often caused by impact. It represents a high risk of blowout and requires immediate replacement. Driving on a bubbled tire is considered unsafe by automotive safety standards.
Tire rotation is the practice of moving each tire on a vehicle to a different position to promote even tread wear. This routine maintenance extends tire life, improves vehicle handling, and enhances safety by ensuring consistent traction across all four wheels.
A yellow dot on a tire indicates the tire’s lightest point (or heaviest point, depending on manufacturer) and is used to align with the valve stem or the wheel’s heaviest point to minimize the need for additional balancing weights during installation.