In the garage in Apeldoorn the mechanic measures your rear tyres: tread depth 2.0 mm in the main grooves, both the same size, no visible carcass — but one tyre has a clear bulge on the side. Is this tyre approved?
- ✓ No — a bulge is its own independent failure ground, separate from tread, size and carcass
- Yes — tread, size and carcass are fine, so the tyre is approved
Correct answer: No — a bulge is its own independent failure ground, separate from tread, size and carcass
Explanation
Bulges are their own independent requirement (the law); even without carcass damage the tyre fails.
Why learners get this wrong
- Bulges are their own independent requirement (the law); even without carcass damage the tyre fails.
Topic: Tyres: tread, size and damage each count separately
Read the rule: Core: Tyres: tread, size and damage each count separately
Sections
- Challenge: Tyres: tread, size and damage each count separately
- The model: Tyres: tread, size and damage each count separately
- Core: Tyres: tread, size and damage each count separately
- Why it matters: Tyres: tread, size and damage each count separately
- Active recall: Tyres: tread, size and damage each count separately
- Teach back: Tyres: tread, size and damage each count separately
- Memory hook: Tyres: tread, size and damage each count separately