What Causes a Black Ring Around the Outer Edge of a Tire?

[AlexisRose]

A black ring around the outer edge of a tire indicates that the tire surface has a certain tilt angle, commonly referred to as tire scrubbing. In this case, a wheel alignment is required. Alternatively, it could be due to slightly high tire pressure, causing the tire shoulder not to adhere to the road surface. Below is more information on tire maintenance: 1. Regularly rotate tires: Perform tire rotation periodically to ensure even tire wear. Have a wheel alignment every 5,000 to 10,000 kilometers to prevent abnormal and severe tire wear. Tires installed on the same axle should not be of different models or have significant differences in wear. 2. Maintain wheel balance regularly: If wheel balance is not up to standard, high-frequency wobbling will occur during high-speed driving, leading to uneven tire wear and compromising driving safety. 3. Frequently inspect tires: Before daily trips, conduct thorough and detailed checks on tires, including tire pressure, any cracks on the tire sidewalls, and tread wear conditions. Address any potential hazards promptly.