|: No one would call roller skates "quads".
That started only with the inline hype.
** Here, it was more of a way to let people know "which" skates you were using. Skaters themselves decided to coin specific terms to help alleviate any confusion. At that time I was skating outdoor marathons which had both types of skates. WE, as a group, brainstormed to create user specific terms other than just "Roller sktes".
The terms we ended up with were :
'Conventional roller skates, Quads, & Eights.'
'Blades, inlines, & straights'
Now, it seems, more often that inlines are called "Aggressive Skates". But I think that is wrong since WE skate on aggressive skates too!