Group B Tyres and Suspension
Apply class-specific tyre tread, condition, valve, size, type, load and speed requirements and inspect suspension components, fastenings, linkages, wear and bushes.
How to prepare for this year's assessment
Start with group and vehicle class, confirm whether a rule applies, follow the prescribed inspection or administration method, and classify only the evidence permitted by the live source.
Core concepts
Concept 1
Apply class-specific tyre tread, condition, valve, size, type, load and speed requirements and inspect suspension components, fastenings, linkages, wear and bushes.
Exam cue: Identify whether the scenario belongs to Group A or Group B before selecting a manual.
Concept 2
Identify class and vehicle data before assessing each fitted tyre and following the complete suspension load and movement procedure.
Exam cue: Identify class and vehicle data before assessing each fitted tyre and following the complete suspension load and movement procedure.
Concept 3
Tyres and suspension are named within the current 12-question Group B manual allocation.
Exam cue: Use the source version and effective date that apply during the live 2026–27 training year.
Concept 4
Class 5 and 7 load or speed applications can differ from ordinary car assumptions.
Risk pitfalls and guardrails
Using tread depth alone or overlooking class-specific load, speed and pairing requirements.
Guardrail: Do not replace current manual wording with workshop preference, memory from an earlier year or an assumption based on appearance.
Treating workshop repair preference as the statutory MOT test outcome.
Guardrail: Do not replace current manual wording with workshop preference, memory from an earlier year or an assumption based on appearance.
Reproducing a sample answer without checking current application and evidence.
Guardrail: Use public examples to identify concepts only; the live source and current facts control the result.
Memory anchors
Class Controls the Tyre Rule
Confirm the vehicle class before applying load, speed or tread criteria.
Inspect Every Fitted Road Wheel
Assess the tyres and wheels fitted at the time of test.
Load and Move Suspension
Use the required method to expose wear or insecurity.
Group B Tyres and Suspension: Source
Confirm the answer in the live DVSA guide, inspection manual or applicable special notice.
Group B Tyres and Suspension: Sequence
Identify group and class, confirm application, use the prescribed method, then classify the evidence.
Group B Tyres and Suspension: Annual Boundary
Keep the 2026–27 assessed topic allocation separate from live rule changes and earlier training years.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
A class 4 car tyre has 1.4mm tread in the central three-quarters around the whole circumference. What is the result?
What tread-depth rule applies to a normal passenger car with no more than eight passenger seats?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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