Tyre construction — general categories Identify the two general types of tyres commonly used on passenger vehicles.

Introduction / Context:
Tyres can be classified by whether they contain an inner tube that holds the air or integrate the air seal within the carcass. Recognizing this helps in puncture repair and rim selection.

Given Data / Assumptions:

• Modern passenger cars predominantly use tubeless radial tyres.
• Older vehicles or certain off-road applications may use tube-type tyres.
• Rims must be compatible with the tyre type.

Concept / Approach:
Tube-type tyres rely on a separate inner tube for air retention. Tubeless tyres use an airtight liner bonded to the tyre and an air-tight bead against the rim to maintain pressure, improving safety and reducing heat.

Step-by-Step Solution:
Identify mainstream categories: tube-type and tubeless.Relate to service: tubeless allows puncture sealing from outside; tube-type requires tube repair or replacement.Select the option that lists both: “tube type and tubeless”.

Verification / Alternative check:
Vehicle manufacturer specifications and tyre sidewall markings (e.g., “Tubeless”) confirm the categorization.

Why Other Options Are Wrong:
“Solid” tyres are industrial; not paired with tubeless in standard road cars.

“Air and pneumatic” is redundant terminology.

“Split-rim and drop centre” are rim types, not tyre categories.

Common Pitfalls:
Mounting tubeless tyres on damaged rims may cause slow leaks; using tubes inside tubeless tyres is a temporary fix and alters heat management.

Final Answer:
tube type and tubeless