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CDifficulty 2/5

A lorry has a tandem axle group with 1.50 m axle spacing. Without meeting the special conditions permitting 19 t, and subject to lower technical limits, what is the general mass limit for that axle group?

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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All options

  • 16 tonnes.

  • 11.5 tonnes.

  • 18 tonnes.

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