Correct answer
18 tonnes.
It is 18 tonnes for a motor-vehicle tandem with spacing at least 1.30 m and below 1.80 m. It can be 19 t under Annex IX’s dual-tyre and air/equivalent-suspension conditions, or the conditions for each driven axle and its maximum 9.5 t mass. This limits the group, not the lorry’s total mass; technical and total limits also apply.
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11.5 tonnes.
18 tonnes.
16 tonnes.
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