Big Thanks: Super Keirin: Dream with Keirin 50 Years

Super Keirin is a game for the Sega Saturn by Aspect and VAP. It was never sold in stores, but rather (supposedly) given away to attendees of the 50th anniversary of the Japanese Keirin bike race association. The exact year is unknown. It contains a racing mode (though is considered a simulation game) and information about the association and the sport, which involves racing bikes around an oval track.