Shonan Junai Gumi!
English name: Young GTO
Genres: Action, Comedy
Type: OVA, Episodes: 5
Aired: Jan 21, 1994 to Jan 24, 1997
Studio: J.C.Staff, Life Work
Source: Manga
Rating: R+ - Mild Nudity
Synopsis:
Eikichi Onizuka and Ryuji Danma are members of infamous biker duo, the Oni Baku. When not out riding around, they can be found in school, trying to pick up young women. This is the story of the young Onizuka, who would later become the greatest teacher in Japan, and his partner Ryuji in their quest to lose their virginity and reach maturity.

They are widely feared bosozoku, and are known for their tenacity and viciousness in a fight. However, this lifestyle does not exactly endear them to the opposite gender, so they decide to change their ways. However, this is easier said than done.

(Source: ANN)