Six-time world champion Max Biaggi has announced his retirement from motorcycling.
The Italian, 41, bows out on top after narrowly edging Briton Tom Sykes to clinch his second World Superbikes title last month at Magny-Cours by half a point, the closest margin in the history of the competition.
Biaggi competed in the sport's most illustrious category, MotoGP, in 2005 and won four world titles in the 250cc category (1994-1997) as well as another SBK title in 2010.
'It's the most difficult decision I've had to make but I want the fans to remember me as a champion,' Biaggi tweeted.
'Today is going to be a new day for me ... things will never be the same.
'I have officially retired.' Max Biaggi's career-best finish in MotoGP was second on a Yamaha behind unstoppable compatriot Valentino Rossi in 2002, the second of Rossi's record seven titles.
After switching back to Honda in 2003, Biaggi lost his ride to Spaniard Dani Pedrosa at the end of 2005 and decided to focus on Superbikes, where he won his first title with Aprilia in 2010.
After starting his career relatively late as a 17-year-old, Biaggi will go down as one of the most decorated riders in the sport's history.
'Personally I'm very satisfied with what I have achieved in my career. I've had ups and downs but my passion for this sport has never waned,' he said.