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Metric Sizes

Metric Sizes


Width (205)
This is the width of the tyre and is quoted in millimeters. In this case the tyre is 205mm wide

Profile (45)
The tyre profile is the height of the tyre from the rim to the tread area and is quoted as a percentage of the tyre width.
In this case approx. 92mm (45% of 205mm)

Rim size (15)
The diameter of the rim in inch. In this case 15"

Load rating (99)
This code defines the maximum load the tyre can carry. See load rating table

Speed rating (H)
This code specifies the maximum speed at which the tyre can be used when in good condition. See speed rating table



Imperial Sizes

Imperial Sizes

Diameter (31)
The diameter of the tyre in inch. In this case the outer diameter of the tyre is 31 inches

Width (10.50)
The tyre width in inches

Rim size (15)
The diameter of the rim in inch. In this case 15"

Load rating (109)
This code defines the maximum load the tyre can carry. See load rating table

Speed rating (S)
This code specifies the maximum speed at which the tyre can be used when in good condition. See speed rating table