In Ukrainian traffic rules (PDR), what is the rule regarding driving with tyres of different dimensions or constructions on the same axle?

Answer and explanation

Correct answer: A. Strictly prohibited to install tyres of different sizes, designs (radial/diagonal), or tread patterns on one axle

  1. Step 1: Under Ukrainian Traffic Regulations (PDR), Fitting mismatched tyres on the same axle impairs vehicle stability and is forbidden. Answer: Strictly prohibited to install tyres of different sizes, designs (radial/diagonal), or tread patterns on one axle. Why not the others: Permitted during emergency trips to a tyre repair shop does not represent the statutory Ukrainian traffic standard.

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