Check that the tyre bead is correctly seated in the wheel rim and the wheel is not distorted or buckled.
Check that the valve is correctly seated and is is good working order.
Check that each tyre is of the correct size and pressure for the vehicle and that each tyre matches the opposite tyre on each axle.
Check the tread depth of each tyre. The legal minimum tread depth is 1.6mm for at least 75% of the tyre.
Abnormal wear patterns could indicate worn shock absorbers, innacurate wheel alignment, bad tyre pressures or suspension faults.
A failure with respect to tyre wear will result where:-
The grooves of the tread pattern are not at least 1.6mm throughout a continuous band comprising:
Central 3/4 of the breadth of tread
Entire outer circumference of the tyre.
Tyres must be correctly
matched with regard to:
Location on the vehicle with respect to the axles.
General condition of tyre
Condition of valve
Tyres fail if they have serious cuts, bulges or other damage. The wear on the tyre is checked with a tyre tread depth gauge to ensure compliance. The tyres are examined to ensure that there is no fouling with any part of the vehicle.
The condition of the spare tyre is not part of the MOT.
Inspection to reveal:
Distorted bead rims
How securely attached to the vehicle
No wheel-nuts or studs missing
An externally fitted
spare wheel or spare wheel carrier must not be so insecure that
it is likely to fall off.
Tyre pressure monitoring systems
Tyre pressure monitoring systems fitted to vehicles first registered after 1 January 2012 must be working correctly and not indicating a malfunction.
Tyre/Wheel markings and pressures