Air Tyre Pressure
This is the amount of air in the tyre. It can be measured in either PSI (pounds per square inch) or Bar (units).
The process which ensures that the wheels, suspension and steering are conforming with the manufacturer's specifications.
This is when, instead of driving on the road, the vehicle rides on the water surface, resulting loss of control over the vehicle.
Tyre Aspect Ratio
This can also be known as the profile. It is a way of expressing a tyres height, as a percentage of its width. This is found on the sidewall of the tyre.
This is the process to ensure when the tyre and the wheel spin, the weight is distributed.
Bar Pressure Unit
The metric unit for the
This is a ring of steel to help hold the tyre to the rim.
This is the skeleton of the tyre underneath the tread and sidewalls.
Cold Inflation Pressure
This is the pressure of the tyre, before the tyre has heated up from driving.
This is the area of the tyre which comes in contact with the road.
This is the part of the tyre which comes into contact with the road surface.
Tyre Inner Liner
The inner linear prevents air from slipping out of the tyre. This can be used when tubes are not.
This is a code located on the tyres sidewall which measure the maximum weight a tyre can carry at the speed indicated.
Also known as the aspect ratio, this indicates the height of the tyre as a percentage of the width.
This is where the tyre has been recycled and remoulded using a new tyre tread.
This is where the entire
tyre's tread is replaced and re used
This is the side of the wheel where the bead (steel) is situated.
This is the energy used to keep the tyre moving at a constant speed.
are a type of tyre designed for short distances when they have little or no air pressure.
This is the measurement between the wheel rim to the outside tread of the tyre.
This is the section of the tyre where the sidewall and tread meet.
The part of the tyre between the edge of the tread and the bead (steel).
This is a rubber compound which has been designed to help reduce rolling resistance.
These are slits in the tread which have been designed to improve grip in wet conditions on the road.
The friction between the wheel and the driving surface.
This is the front section of the tyre.
comes into contact with the driving surface.
This is when a tyre needs more air pressure applied.
This is a rubber tube with a metal cap, which allows air to enter, but not leave the tyre.