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C+EDifficulty 3/5

If the combination of vehicles you are driving is towing a two-axle trailer, you should know that the MAM for each of the trailer's single axles must not exceed:

Correct answer

10 Tonnes.

The general limit for each single non-driven trailer axle is 10 tonnes, under Annex IX of the General Vehicle Regulations. This is a limit per axle, distinct from the general 18-tonne maximum mass of the complete two-axle trailer. The vehicle’s authorised technical limits and other applicable combination limits must also be observed; adding axle limits does not justify any total mass.

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  • 11.5 Tonnes.

  • 10 Tonnes.

  • 18 Tonnes.

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