Worn tyres are one of the more dangerous vehicle issues to neglect, since reduced tread directly affects braking distance and grip, particularly in wet conditions where the margin for error shrinks considerably. The simple coin test remains a reliable way to check tread depth at home, and any tyre approaching the legal minimum should be scheduled for replacement rather than pushed to the absolute limit. Uneven wear patterns across a tyre often indicate an underlying alignment or suspension issue rather than a problem with the tyre itself, and addressing the root cause prevents the replacement tyre from wearing unevenly in the same way. Tyre age matters even when tread appears adequate, since rubber degrades over time regardless of mileage, and tyres older than roughly six years are generally recommended for replacement even with visually acceptable tread remaining. When choosing replacement tyres, matching the manufacturer's original specification, or a close equivalent, generally preserves the vehicle's intended handling characteristics better than opting for a cheaper, mismatched alternative. Rotating tyres regularly, typically every ten thousand kilometres, extends overall tyre life significantly by evening out wear across all four positions.