Article 2U.K.Definitions

For the purposes of this Regulation, the following definitions shall apply:

(1)

‘vehicle type with regard to the installation of its tyres’ means vehicles which do not differ in such essential respects as the types of tyres, minimum and maximum tyre size designations, wheel dimensions and off-sets as well as speed and load capabilities suitable for fitment, and the characteristics of the wheel guards;

(2)

‘type of tyre’ means a range of tyres which do not differ in the following essential characteristics:

(a)

the tyre class: C1, C2 or C3, as described in Article 8(1) of Regulation (EC) No 661/2009; and

(b)

in the case of class C1, tyres, the characteristics of a type of pneumatic tyre as defined in paragraph 2.1 of UNECE Regulation No 30(1);

(c)

in the case of class C2 or C3 tyres, the characteristics of a type of pneumatic tyre as defined in paragraph 2.1 of UNECE Regulation No 54(2);

(3)

‘tyre size designation’ means the designation as defined in paragraph 2.17 of UNECE Regulation No 30 for class C1 tyres and paragraph 2.17 of UNECE Regulation No 54 for class C2 and C3 tyres;

(4)

‘wheel off-set’ means the distance from the hub abutment face to the centre line of the rim;

(5)

‘pneumatic-tyre structure’ means the technical characteristics of the tyre’s carcass;

(6)

‘normal tyre’ means a tyre or run flat tyre intended for normal on-road use;

(7)

‘run flat tyre’ means a tyre as defined in paragraph 2.4.3 of UNECE Regulation No 64(3);

(8)

‘temporary-use spare tyre’ means a tyre different from a tyre intended to be fitted to any vehicle for normal driving conditions but intended only for temporary-use under restricted driving conditions;

(9)

‘wheel’ means a complete wheel consisting of a rim and a wheel disc;

(10)

‘temporary-use spare wheel’ means a wheel different from one of the normal wheels on the vehicle type;

(11)

‘unit’ means an assembly of a wheel and tyre;

(12)

‘standard unit’ means a unit which is capable of being fitted to the vehicle for normal operation;

(13)

‘spare unit’ means a unit which is intended to be exchanged for a standard unit in case of malfunction of the latter and may be either of the following;

(14)

‘standard spare unit’ means an assembly of a wheel and tyre identical in terms of wheel and tyre size designation, wheel offset and tyre structure to that fitted in the same axle position and to the particular vehicle variant and version for normal operation, including wheels produced from a different material and which may use different wheel fixing nut or bolt designs, but which is otherwise identical to the wheel intended for normal operation;

(15)

‘temporary-use spare unit’ means an assembly of any wheel and tyre that does not fall within the definition of standard spare unit and which falls within one of the temporary-use spare unit type descriptions as defined in paragraph 2.10 of UNECE Regulation No 64;

(16)

‘speed category symbol’ means the symbol as defined in paragraph 2.29 of UNECE Regulation No 30 for class class C1 tyres and paragraph 2.28 of UNECE Regulation No 54 for class C2 and C3;

(17)

‘load capacity index’ means a number associated to the maximum load rating of the tyre in relation to the definition in paragraph 2.28 of UNECE Regulation No 30 for class C1 tyres and paragraph 2.27 of UNECE Regulation No 54 for class C2 and C3 tyres;

(18)

‘maximum load rating’ means the mass which a tyre can carry when operated in conformity with requirements governing utilisation specified by the tyre manufacturer.