Home › CDL Practice Tests › General Knowledge Questions › Question 219
What does cupping or scalloped wear across a tire's tread usually point to?
- A.Driving too slowly on highways
- B.A suspension or balance problem, such as worn shocks, loose parts, or an out-of-balance wheel
- C.A brand-new alignment
- D.Too much tread depth
Correct answer
B. A suspension or balance problem, such as worn shocks, loose parts, or an out-of-balance wheel
Why
Uneven, dips worn into the tread in a regular pattern mean the tire is bouncing or wobbling as it rolls instead of tracking smoothly. Replacing the tire without fixing the worn shock or loose component just wears the new tire the same way.
Manual topic: Tires - Wear Patterns · From the General Knowledge practice bank (GK-219).