Which alignment condition causes wear on the inner edge of tires?

Which alignment condition causes wear on the inner edge of tires?

• A. Positive camber
• B. Toe-out
• C. Negative camber
• D. Toe-in

Answer: (C)

Negative camber causes wear on the inner edge of tires. When the top of the wheel tilts inward toward the vehicle, more of the tire’s inner edge stays in contact with the road as the car carries load and during cornering. That extra contact wears the inner shoulder faster than the outer. A small amount of negative camber can help with handling, but excessive negative camber accelerates inner-edge wear. Positive camber would wear the outer edge instead, and toe misalignment (toe-in or toe-out) mainly affects wear along the tread edges due to scrubbing, not specifically the inner edge.

Negative camber causes wear on the inner edge of tires. When the top of the wheel tilts inward toward the vehicle, more of the tire’s inner edge stays in contact with the road as the car carries load and during cornering. That extra contact wears the inner shoulder faster than the outer. A small amount of negative camber can help with handling, but excessive negative camber accelerates inner-edge wear. Positive camber would wear the outer edge instead, and toe misalignment (toe-in or toe-out) mainly affects wear along the tread edges due to scrubbing, not specifically the inner edge.