Hoy, Philip Hindes and Jason Kenny won the three-man, three-lap team sprint in a world record of 42.600 seconds, beating France in a repeat of the final four years ago in Beijing.
Hindes picked himself up off the track after a poor start in qualifying to help propel Team Great Britain to two world records and Olympic gold.
Photos: 'Dangal' girls Sanya Malhotra, Fatima Sana Shaikh's dinner outing
Photos: Salman Khan, Daisy Shah spotted at the Mumbai airport
Photos: Rakhi Sawant to play Honeypreet in Ram Rahim biopic
Photos: Arvind Kejriwal asks Kamal Haasan to join politics
Photos: TV actress who played goddesses on the small screen