Carithm Knowledge Base

Tyre Replacement Quote Breakdown

Updated: 2026 · Quick Guide

Why tyres are often replaced early

Tyres are a high-frequency upsell item in many workshops. While they are safety-critical, they are often replaced based on visual judgement rather than measured tread depth.

Key tyre conditions

Common issues in tyre quotes

1. “All four tyres need replacement”

Often recommended even when only one or two tyres are actually worn. Always verify tread depth individually.

2. Uneven wear diagnosis

Can be caused by wheel alignment, suspension wear, or incorrect inflation — not always tyre failure.

3. Premature replacement based on age

Tyres older than 4–6 years may be flagged, but actual condition and cracking should be inspected visually.

What to verify before approving tyres

  1. Measured tread depth (not visual estimation)
  2. Condition of all four tyres individually
  3. Wheel alignment report
  4. Suspension condition check if uneven wear exists

Key insight

Tyre replacement should always be measurement-based. If no tread depth data is provided, the recommendation should be questioned.