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[F1The fuel efficiency class must be determined on the basis of the rolling resistance coefficient ( RRC ) according to the ‘A’ to ‘G’ scale specified below and measured in accordance with Annex 6 of UNECE Regulation No 117 and its subsequent amendments and aligned according to the procedure laid down in Annex IVa.]
Textual Amendments
F1 Substituted by Commission Regulation (EU) No 1235/2011 of 29 November 2011 amending Regulation (EC) No 1222/2009 of the European Parliament and of the Council with regard to the wet grip grading of tyres, the measurement of rolling resistance and the verification procedure (Text with EEA relevance).
If a tyre type is approved for more than one tyre class (e.g. C1 and C2), the grading scale used to determine the fuel efficiency class of this tyre type should be that which is applicable to the highest tyre class (e.g. C2, not C1).
| C1 tyres | C2 tyres | C3 tyres | |||
|---|---|---|---|---|---|
| RRC in kg/t | Energy efficiency class | RRC in kg/t | Energy efficiency class | RRC in kg/t | Energy efficiency class |
| RRC ≤ 6,5 | A | RRC ≤ 5,5 | A | RRC ≤ 4,0 | A |
| 6,6 ≤ RRC ≤ 7,7 | B | 5,6 ≤ RRC ≤ 6,7 | B | 4,1 ≤ RRC ≤ 5,0 | B |
| 7,8 ≤ RRC ≤ 9,0 | C | 6,8 ≤ RRC ≤ 8,0 | C | 5,1 ≤ RRC ≤ 6,0 | C |
| Empty | D | Empty | D | 6,1 ≤ RRC ≤ 7,0 | D |
| 9,1 ≤ RRC ≤ 10,5 | E | 8,1 ≤ RRC ≤ 9,2 | E | 7,1 ≤ RRC ≤ 8,0 | E |
| 10,6 ≤ RRC ≤ 12,0 | F | 9,3 ≤ RRC ≤ 10,5 | F | RRC ≥ 8,1 | F |
| RRC ≥ 12,1 | G | RRC ≥ 10,6 | G | Empty | G |