[FairyKing]

Hmm... "revise" is the first thing that jumps out at me, along with "device" as others have mentioned. It could also involve the concept of vice? Or maybe a misspelling of vise? And I see what Die was going for with KRRevice = crevice.

Or maybe we're breaking it up wrong, and it's meant to be read as "rev ice"? I like the thought of a rider machine that can change from a bike to a snowmobile.