Shoutarou Kaneda

Kaneda is a carefree gang-leader who boasts a custom-modified motorcycle. He and Tetsuo have been best friends since early childhood. He is brash and not above teasing Tetsuo despite feeling affection for him as a younger brother. Upon rescuing Kei, Kaneda becomes involved in the activities of her group of anti-government guerillas in hopes of locating Tetsuo.

(Source: Wikipedia)