Tyre wear diagnosis An over-inflated tyre usually wears the tread most near the __________.

Introduction / Context:
Interpreting tyre wear patterns helps diagnose inflation, alignment, and suspension issues. Over- and under-inflation produce characteristic patterns on the tread surface.

Given Data / Assumptions:

• Radial passenger car tyre, typical load conditions.
• No severe alignment faults assumed (camber/toe).

Concept / Approach:
Inflation pressure changes the contact patch shape. Over-inflation bulges the center of the tread outward, concentrating load and friction there. Under-inflation lets the shoulders carry more load, wearing edges faster.

Step-by-Step Solution:

Verification / Alternative check:
Tyre service manuals show cross-sectional load distribution diagrams correlating pressure with wear patterns.

Why Other Options Are Wrong:

• Edges/corners: typical of under-inflation or excessive camber.
• Random wear: indicates other faults such as shocks or balance, not classic pressure effect.

Common Pitfalls:
Misdiagnosing center wear as camber issue; ignoring that temperature and speed exacerbate pressure-related wear.

Final Answer: