What causes cupped tires?

Answer:
Worn shocks and/or struts will cause cupped tires. There may be another suspension or chassis component worn, but the shocks/struts are the first components that should be inspected.
First answer by Quirkyquantummechanic. Last edit by Quirkyquantummechanic. Contributor trust: 3699 [recommend contributor recommended]. Question popularity: 1 [recommend question].