There appears to be no significant difference between the two bicycles in this Fleet Farm ad, spotted by colleague Sara Meyer in a local paper.
The one for a boy is called an “aggressor,” and the one for a girl is called an “angel.”
An “aggressor” bike is generally a sturdy mountain bike. Presumably, an angel bike is less sturdy, less able to take what the world can throw at it.
In other news: have you met Lea Davison yet?