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The second part of the law says that the 1.6mm measurement must be across the central 3/4 of the tyre - see above
This means that at any point across the main part of the tyre, the tread depth MUST BE NOT LESS THAN 1.6mm.
Ever wondered what the markings on the side of a tyre mean?
1 4x4 Diamaris. This is the name of the tyre.
2 185/60 R 14 88H This is the size and characteristics of the tyre.
185: This is the section width of the tyre. That means the overall width of the
tyre in mm
60: This is the aspect ratio of the tyre. That is the sidewall height of the tyre
as a percentage of the section width
R: This mean the tyre is of Radial construction
14: This is the internal diameter of the tyre.
88: This is the load index. How much weight the tyre can carry
H: This is the speed index. The maximum speed the tyre is
3 Tubeless: This means the tyre has no inner tube
Tyre care information from