From AMLopedia
Biker Kid (born 1989) was a kid with long hair that moved to Sylvan Meadows in 2000. When he first moved in, he would ride his BMX bike up and down Timber Valley Drive, earning him the nickname "Biker Kid". The boys have never actually talked to him, but one time Robert Elder was riding down the street on his bike and Adam and Liam mistook him for Biker Kid.