"should" doesn't really fit. All pics Google can find show them having suspension forks, but if the rider wants a suspension fork can be replaced with a rigid fork of the correct length.
On the outer rigid object
Never
Rigid is immovable, unbending. Semi-rigid can move in a limited way.
no they are not rigid.
Rigid polystyrene is a hard plastic Rigid polystyrene is a hard plastic
The volume should not change if the cylinder is rigid.
Firm; stiff; unyielding; not pliant; not flexible., Hence, not lax or indulgent; severe; inflexible; strict; as, a rigid father or master; rigid discipline; rigid criticism; a rigid sentence.
most rigid
Rigid boxes is unique thing we can adjust it in many ways.
(rigid - unbending, unyielding, or stiff. Also strict, inflexible, or unchanging.)The Sandwiches were packed in a rigid plastic container.Each morning he has a rigid exercise routine.The military school had a rigid code of conduct.
No. A triangle is the only rigid polygon.
No, rigid is not a property of gold.