What is one of the main contributing factors affecting braking performance?

The condition of your tyres.


Air Pressure

The recommended tyre pressures for your vehicle will be found on the placard mounted on the vehicle e.g. behind the petrol filler cap or on the drivers door pillar.

Always check pressures when the tyres are cold, never adjust tyre pressures during or immediately following a journey. Low tyre pressures reduce the tyre’s performance and increase fuel consumption.

Check tyre pressures every two weeks and adjust when necessary. Always refit the valve cap.

Visual Inspection

It is important to visually check the condition of tyres on a regular basis.

Lumps and bulges may indicate that the tyre has been damaged internally. If there is any doubt as to the tyre condition then the tyre should be immediately removed from service until it has been checked by a suitably qualified tyre expert.

Any cut to the tyre, which is deep enough to reach the internal structure may render the tyre unsafe. It should be repaired or replaced.

Tyres deteriorate with age and if cracking or crazing is present it may indicate that the rubber has perished and the structural integrity cannot be assured.

Tread Depth

The tread depth should be measured in the principle grooves. These are the grooves which contain “tread wear indicators”, which are raised sections in the base of the groove. They are usually 1.6mm to 2mm above the base of the groove.

Measure each groove depth across the tread width and in several places around the tyre circumference.