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Why must tires on the same axle be matched in size and type (for example, not mixing radials and bias-ply casually)?
- A.Mixing types improves traction in all weather
- B.Any tire that holds air works with any other
- C.Mismatched tires roll at different rates and grip differently, causing scrubbing, heat, handling problems, and rapid wear
- D.Matching is only about how the truck looks
Correct answer
C. Mismatched tires roll at different rates and grip differently, causing scrubbing, heat, handling problems, and rapid wear
Why
Two tires bolted to the same axle must travel the same distance per revolution and respond the same way to steering and braking. A mismatch forces one tire to drag against the other on every mile and can make emergency handling unpredictable.
Manual topic: Tires - Matching · From the General Knowledge practice bank (GK-230).