Use the values printed on your tyre or measured with a suitable gauge. TyreDeck explains the result but does not certify a tyre, wheel or vehicle as safe.
What this tells you
Wear patterns are clues rather than diagnoses. Pressure, alignment, balancing, suspension and usage can overlap, so correct the cause before fitting another tyre.
Use it properly
Compare the pattern on both tyres on the axle and note pressure, steering pull and vibration. A pattern suggests what to inspect; it does not prove a component has failed.
Safety note
If you see a bulge, exposed cord, serious cut, rapid pressure loss or a visibly flat tyre, avoid unnecessary driving and arrange a competent physical inspection.
Source and review
UK guidance · Reviewed 2026-08-29 · Official source