When three tyres look healthy and one is worn out, the odd tyre is pointing at a fault specific to its corner of the car, or at the absence of rotation. Either way, replacing it without finding out why simply means the replacement wears out next.
The localised causes
If one tyre is wearing far faster, look first at that wheel:
- Alignment or camber off on that corner only, often after a kerb or pothole hit
- A worn or bent suspension or steering part there
- A binding brake adding drag and heat at that wheel
- Imbalance on that wheel, sometimes with cupping
These are corner-specific faults, which is why the wear is corner-specific too. That wheel needs inspecting.
The rotation cause
The other common reason is simpler: the tyres were never rotated. Different wheels do different amounts of work:
- Front tyres usually wear faster, they steer, do most braking, and on front-wheel-drive cars they drive too
- The drive wheels wear faster on any car
Left in place, those wheels wear ahead of the others. Regular rotation spreads the wear evenly, as set out in the tyre rotation schedule, and is the easy prevention.
Putting it right
The approach is to fix the cause, then sort the tyres:
- Have that corner inspected, alignment, suspension, brake, and corrected
- Start rotating regularly if it was never done
- Replace the worn tyre, usually in a pair across the axle for balanced grip, with the newer tyres on the rear
Because a single odd tyre often means buying one or two to match what is on the car, getting the same or a closely comparable tyre matters for balance, searching by the exact size when buying online from Tyres.co.uk makes matching the existing pair straightforward. The fix to the corner comes first, though, or the new tyre simply joins the worn one.
A note on AWD
On four-wheel-drive and AWD cars, one badly mismatched tyre can stress the drivetrain, so these cars are fussier about all four tyres being close in wear. A single fast-wearing tyre on an AWD car is worth sorting promptly for that reason as well.
From the workshop: one tyre gone and three fine? That corner's telling you something, tracking, a tired bush, a sticky brake. Or nobody's ever rotated them and the fronts have had it. Either way, find the why. Slap a new tyre on without it and you'll be back, same corner, before long.
Sources and accuracy. This reflects standard diagnosis at the time of writing; a corner-by-corner inspection confirms the cause. AWD tyre-matching tolerances are set by the car maker. If anything here looks wrong, get in touch and we will check it and put it right.
Common questions
Why is one tyre wearing faster than the others?+
Something specific at that corner, or a lack of rotation. Alignment or camber off on that wheel, a worn or bent suspension part, a binding brake, or imbalance can all wear one tyre faster. Or the tyres were simply never rotated, so the drive or steered wheels wore ahead of the rest.
Is it normal for front tyres to wear faster?+
To an extent, yes. On most cars the front tyres do more work, steering, braking and often driving, so they wear faster than the rears. Regular rotation evens this out. One front wearing far faster than the other, though, points to a fault at that corner.
Should I replace just one worn tyre?+
Often it is better to replace in pairs across an axle for balanced grip, and the new tyres usually go on the rear. Whether one or two are replaced, the cause of the uneven wear must be fixed first, or the new tyre wears out ahead of the others too.
Can a brake problem cause one tyre to wear faster?+
Indirectly, yes. A binding brake or a fault at one corner can add drag and heat that affects how that tyre wears, and worn suspension or a bent part there changes its alignment. A single fast-wearing tyre is worth having that corner inspected.