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What damages tyres?

Physical factors:

  • Age
  • Wear and damage

Road conditions:

  • Potholes, obstacles, kerbs ,sharp objects, speed bumps


  • Extreme temperatures
  • Rain, snow and ice
  • Oil, grease and other chemicals
  • Strong sunlight and ozone

Driving habits:

  • Speeding
  • Quick starts and emergency braking
  • Driving on damaged roads
  • Failure to notice a change in handling, noise or vibration
  • Failure to consult a professional when something changes

Neglecting basic tyre maintenance:

  • Air pressure
  • Not routinely checking for wear or damage
  • Alignment and rotation
  • Not going to a professional to remove or fit tyres in case of damage or after an impact
  • Not balancing tyres after they are fitted or replaced
  • Improper tyre storage
  • Use of sealants that have not been approved

Improper usage:

  • Using summer tyres on snow and ice
  • Mixing tyre types
  • Using tyres on damaged, distorted or modified wheels
  • Using wheel and rim sizes that are not compatible
  • Fitting tyres that do not have a speed capability and load index at least equal to or higher than those originally specified by the vehicle manufacturer
  • Re-inflating a tyre that has been run flat or seriously under inflated
  • Using a spare tyre of a different size at speeds in excess of 50 mph

Do I need to change now?

We recommend to replace your tyre if:

  • The tread is worn beyond the recommended tread depth levels
  • The sidewall is damaged
  • Any hole in the tread that is greater than 6 mm in diameter
  • The bead is damaged or deformed (the bead is the edge of the tyre that sits on the wheel)

1- Inspect your tyre regularly and look for:

  • Uneven tread wear
  • Shallow tread
  • Troublemakers (rocks, nails, etc.)
  • Damaged areas
  • Damaged valve caps

2- Pay attention to the “feel” of your tyres as you drive.

  • A rough ride may indicate tyre damage or excessive wear.
  • If you notice vibrations or other disturbances while driving, immediately reduce speed, drive with caution until you can safely pull off the road and stop, and inspect your tyres.
  • If a tyre is damaged, deflate it and replace it with your spare. If you do not see any tyre damage and cannot identify the source of the vibration, take the vehicle to a tyre dealer for a thorough inspection.

3- See a professional

  • If you see something that you’re not sure about during your inspection, have it examined by your tyre dealer.

How do I inspect my tyres?

1- Check your air pressure

  • It’s quick and can prevent many problems
  • Do it once a month and before a long trip

See Air pressure: what should I know?

2- Check the tread wear with one of the two methods:

  • With a tread-depth gauge
  • With the tread-wear indicators

See How to check if you have enough tread left.

3- Inspect your tyres for wear and damage problems

  • Check your sidewall for any punctures or bumps and the tread to see if the tyres are wearing evenly
  • Be sensitive to any changes in handling or steering

When should I inspect my tyres?

  • Once every month
  • Before you go on a long road trip.

Next steps:

  • Any visible perforation, cut or deformation must be checked thoroughly by a tyre professional.
  • Only a tyre professional can tell you if your tyre can be repaired or has to be changed.

Spare tyre: can I use it on a day-to-day basis?

Temporary spares have lighter construction to limit their weight on your vehicle so they don’t have the same speed or mileage capabilities. This could affect your vehicle’s stability. The only exception is if your spare tyre is actually a fifth full-size tyre that exactly matches the tyres on your vehicle.

What are run flats and who can use them?

What are "run flat" tyres?

Run flat tyres have specific technology to allow you to drive for a limited distance at a reduced speed after a puncture or a drop of tyre pressure.
MICHELIN Zero Pressure (ZP) tyres provide run-flat technology that allows you to drive up to 50 miles at 50 mph with a flat tyre.

Can I mount run flat tyres on any vehicle?

No, only vehicles that originally were equipped with run flat tyres should mount them – these vehicles have some suspension and chassis modifications designed for run flat tyres.

Can I mix run flat tyres with normal tyres?

  • Never mix run flat tyres with tyres that do not have run flat technology (conventional tyres) – unless in an emergency situation on a limited, temporary basis. The conventional tyre should be replaced with a run flat tyre as soon as possible.
  • It is also not recommended to mix different run flat technologies/products together.

My run flat tyre has been punctured. How long can I drive on it?

Run flat tyres only allow you to drive for a limited distance and reduced speed after a puncture or other event has resulted in either a drop in tyre inflation pressure or a complete loss of inflation pressure. If you have MICHELIN Zero Pressure (ZP) tyres, you can drive up to 50 miles at 50 mph with a flat tyre.

My tyre is low: what should I do?

A tyre is low (or soft) when it doesn’t have sufficient air pressure to meet the vehicle manufacturer’s recommended psi (pressure per square inch). Soft tyres lead to flats and tyre blow outs.


Add air to your tyre until it reaches the proper air pressure (in psi, as measured by an air pressure gauge). To find the air pressure recommended for your tyre, consult your vehicle’s owner’s manual or find your recommended psi on the sticker on your door.

See where

Some advice:

Never use tyres that have been driven with very low pressure unless they have been thoroughly examined internally and externally by a tyre professional.


Internal damage is not visible while the tyre is mounted; only a professional can tell whether the tyre can be safely used again.

I need to replace my tyre. Any advice?

General advice

  • Michelin recommends replacing all four tyres at the same time, to maintain even wear and traction on all four tyres.
  • Take time to research. You can re-buy your original equipment or a different set of tyres. They need to fit your vehicle, your climate, driving environment and your driving style. See How to choose a tyre
  • See a professional to mount and align your new tyres.