Frequently Asked Questions
HOW TO PROPERLY REPLACE YOUR TYRES
It is recommended to equip your vehicle with 4 identical or similar tyres. If there is too much of a difference between two sets of tyres, they might not respond as quickly and you might lose control of your vehicle.
RENEWAL OF ONE TYRE ONLY
The Highway Code states that the difference in depth of two tyres mounted on the same axle should not exceed 5 millimetres.
If it corresponds to your situation, and you need to have one of your tyres replaced, you must replace it with a tyre that is identical in all aspects.
The replacement tyre must share all the characteristics of the other: brand, tread pattern, load index, speed rating and diameter.
REPLACEMENT OF 2 TYRES
When your tyres are worn, replacing them becomes compulsory. Tyres in good condition guarantee safety in your vehicle It is important to choose replacement tyres similar to the original equipment.
If your are planning on rotating your tyres, it is important to fit the less worn tyre on the rear axle. The drive axle being directly controlled by the steering wheel, you can take direct action in case of traction loss contrary to the rear axle.
When you rotate your tyres, make sure to check the level of wear for any abnormal wear. It only takes a quick check to detect problems of alignment or balance
If the tread wear indicator reaches 1.6mm, you should replace your tyres as soon as possible.
The more you wait and get closer to the 1.6mm limit, the higher the risks of aquaplaning.
REPLACEMENT OF ALL 4 TYRES
When all four tyres are worn, you can replace them with identical tyres of the same size. If your were happy with the performance of your tyres, you can choose tyres from the same manufacturer. If it were not the case, a great selection of tyres is available at cheap prices on the internet.
WHAT ABOUT VALUE FOR MONEY?
Tyre tread life should be taken into account when purchasing a new tyre. Indeed, sometimes you can miscalculate the actual cost of a tyre by trying to save money at the time of purchase with a low price tyre. This tyre might not last as long or be of a lesser quality than another, and you may have to replace it sooner.
When replacing a tyre, several criteria should attract your attention :
You have to find the right balance.
MAKE SENSE OF THE MARKINGS
The law closely regulates what is, and what isn’t possible to do when it comes to tyre replacement. Drivers must comply with the law on the following points in order to pass the MOT or random checks on the road:
Different tyres on the same axle : you must mount tyres of equal diametre on the same axle. Tyres should have the same tread pattern and share the same characteristics..
Uneven wear on the same axle : There shouldn’t be a difference in depth higher than 5mm between the tread depth of the two tyres.
Load index and authorized speed :It is forbidden to mount tyres that have a speed or a load rating lower that the one recommended by the manufacturer/ original equipment. For snow tyres, you are allowed to equip tyres with indexes one letter lower than for summer indexes.
Customized sizes : For any change in sizes, you have to make sure they are approved by the OTC or ETRTO as indicated here : (correlation table).
Customized sizes and speedometers : After a change in size, the speedometer must not indicate a speed inferior to your real speed.What is more between 25 and 75 km/h, your speed should not be artificially increased by more than 10%.
Tyre wear : The tyres should never display deep slashes or irregular shapes on the tread or the sidewall. The tyre should never display bald spots on parts of the tread.
Illegible or absent markings :The tyres must always have visible tread wear indicator and readable sidewall indications.
Scrubbing on body parts :The tyre should never come into contact with the body parts, even when scrubbing lightly or at long intervals .
Find out about the adapted tyre pressure on the fuel filler flap, the owner’s manual or on the door jamb of the driver’s door.
There are two values, one for normal load, the other for a vehicle with a high load or for driving on highways.
It is important to inflate your tyres when cold (less than 2 miles driven in the previous 2/3 hours). If you can’t do otherwise, and your tyres are already hot
remember to add 0.3 bars to the displayed pressure. Remember to check tyre pressure again when cold.
Remember to replace the valve cap for proper sealing.
WRONG PRESSURE : THE RISKS ENTAILED
Under inflated pressure : an underinflated tyre wears out more quickly It creates overheating that ultimately can cause the tyre to burst
Over-inflated tyres : It leads to faster wear of the tyre centre tread.
As a general rule, check your tyre pressure once a month. Remember to check the spare wheel pressure too.
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