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Tire & Suspension Faults

Why are retread (recap) tires restricted on the front steering axle of trucks and buses?

  • A.A recap is more likely to separate and cause a sudden loss of steering control, so steering axles require original or properly regrooved tires as the rules allow
  • B.Recaps are heavier and slow the truck down
  • C.Recaps cannot be balanced at all
  • D.The rule exists only to help tire sellers
Correct answer

A. A recap is more likely to separate and cause a sudden loss of steering control, so steering axles require original or properly regrooved tires as the rules allow

Why

Steering depends entirely on the two front tires, and a tread separation there at highway speed can tear the wheel out of the driver's hands. Keeping recaps off that axle removes a known failure mode from the most sensitive position on the truck.

Manual topic: Tires - Steering Axle Rules · From the General Knowledge practice bank (GK-217).

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