Once again, the MOT requirements relating to tyres are relatively straightforward.
Both tyres on the same axle must be of the same size.
The tyres on the rear do not need to be the same size as those on the front
The minimum tread depth is 1.6mm, measured across the centre 3/4 section of the tread and around the complete outer circumference.
In effect the tread must be at least 1.6mm deep across the centre 3/4 of the tyre without any breaks or ‘bald’ spots.
A cut greater 25mm that exposes the structure of the tyre, or cords, is classed as a fail.
Any lump, bulge, distortion or lifting of the tread that would indicate tread separation is classed as a fail.
Tyres must be seated correctly on the rim and with the correct direction of rotation
Asymmetric tyres with marking ‘inner’ and/or ‘outer’ must be fitted as indicated.
A damaged or misaligned tyre valve is considered a fail.
A badly damaged, cracked or distorted wheel is likely to fail the MOT test.
Any oversized wheel and tyre combination that fouls either bodywork or any steering or suspension component is classed as an MOT fail.
All wheel nuts must be present and securely tightened.
A temporary space saver spare wheel, when fitted to the vehicle at the time of test, is not acceptable under MOT regulations