Tyres, wheels, changing a wheel, snow chains
Minimum tread depth, tyre condition and markings, studded tyres, the snow chain requirement and the safe procedure for changing a wheel.
- 35 questions in this topic
- Topic 9 of 18 in the course: Truck & Bus – supplementary theory (C, C1, D, D1)
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From the key facts
- Tread depth at least 1.6 mm over the whole tread; the fabric must not be damaged or exposed (VTS Art. 58 para. 4).
- All tyres of the same construction (radial or cross-ply), suitable for the maximum speed; twin tyres must not touch each other (VTS Art. 58 para. 2, 3, 5).
All key facts, the questions with explanations and the exam simulation are part of the course.
Legal references for this topic
The questions in this topic are based on these provisions:
- VTS Art. 58, 59, 60, 61, 62, 63, 90, 114
- VRV Art. 5, 23, 35, 36, 57
- SSV Art. 29