Shinichi Mechazawa

One of the most notorious delinquents of Cromartie. Though there is a rumor that he may be perhaps a robot, no one but the main characters (Kamiyama, Hayashida, Maeda, etc.) seems to notice, including himself. At one point he ends up in a motorcycle accident and is repaired, only to end up combined with his motorcycle into an even stronger motorcycle, complete with missiles and rocket boosters. He has a little brother, identical but one-fifth his size, named Beta, also known as Mini Mechazawa