NCT Manual. - National Car Testing Service

NATIONAL CAR TEST (NCT) MANUAL 2012
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TYRE SPECIFICATION
Method of Testing
1. Check that tyres on the same axle are of the same size, aspect ratio(Note 3 on next page) and type (i.e. cross-ply,
radial-ply, run-flat, winter or summer).
2. Check that the speed rating of each tyre is suitable for the maximum legal speed limit for the vehicle.
3. Check that each tyre fitted on the vehicle has an E-mark or e-mark.
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2 3
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7 8
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# Marking Explanation
1 205 Tyre width in millimetres
2 55
3 R Radial construction
Height-to-width ratio in percent. In this example, 55% of 205mm.
Also called the aspect ratio.
4 16 Inner rim diameter of the tyre in inches.
5 91
6 V
Service description: Load Index. Denotes the maximum approved load capacity
per individual tyre.
Service description: Speed symbol. Indicates the maximum speed for the tyre at
full load. In this case 241 kph (150 mph).
7 0204 Production date code (i.e. second week in 2004)
8 E4
Type approval mark (ECE) designating country where issued (“E-mark). There may
be a small “e” instead of or in addition to the “E” mark. The “e-mark” denotes EU
type approval. Either is acceptable.
9 214336 Type approval number (ECE).
10 Outside Asymmetric tyre marking. Where present indicates location of tyre on vehicle.
Not Shown Arrow Where present indicates direction of rotation.
NOTES
1. E-mark is to UNECE type approval specification. e-mark is to European Directive type approval.
Either is acceptable.
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