Did the Romans have parade armour?

[Timianus]

In Rome itself, armed (meaning armored as well) soldiers were forbidden to cross the pomerium, which meant most of the route of a triumphal parade. Soldiers who did take part were given new, white tunics, victory wreaths and such, but no weapons or armor. They might have been allowed to wear their military belts and I would expect shiny, new caligae.The only armor and weapons seen in a triumph were on the trophies carried on floats. The general himself wore a special toga and tunic (toga picta, tunica picta.
Outside of Rome, we just don't know.

Didn't the magical pomerium line kind of fall by the wayside after Sulla and Caesar? Are you saying that the pretorians were not armed in the City?