It does make sense if you think take ‘bikers’ to refer to members of a motorcycle gang as opposed to literally people who ride a motorcycle. Which follows, because ‘One percenter’ is another name for such a member. As a subculture, these people valued the freedom, nonconformity and loyalty of their biker group. You can imagine the bike being replaceable with any technology that lets such groups take to the open road. Mechanical legs would work fine.
By bunnies, you probably mean the Meetle grubs. These are the guys you can turn into either Meetles or Mugs depending on whether they're fed on plants or meat. The purple things are an earlier design for Fuzzles.
