Newly crowned champion Max Biaggi has revealed he is yet to make a decision as to whether he will defend his World Superbike Championship title in 2013 or retire from the sport on the ultimate high.

The Italian wrapped up the second WSBK title of his career during a tense 2012 season finale at Magny-Cours, in doing so notching up his sixth world championship success.

However, with his Aprilia contract concluding this year, attention has now turned to Biaggi's future plans with rumours suggesting he has already competed in his final race.

Indeed, the man himself was coy on his intentions for 2013, admitting he hasn't decided whether he will re-sign with Aprilia for another year or whether he follow the path of Troy Bayliss and retire as the incumbent.

"So, next year is another year but what is important now is to think about what we did to celebrate with the team, the people who make this happen," he said, "I think next week - because I need five or six days to stay home and get back to the family and decide what to do. So, no decision now about 2013."

Biaggi's hesitance to confirm his plans is believed to have created a stall in the WSBK rider market, with Aprilia likely to source a high-profile replacement to join Eugene Laverty in the absence of its champion rider.

Indeed, as of yet just nine rides have been officially confirmed for 2013 - Laverty (Aprilia), Marco Melandri and Chaz Davies (BMW), Tom Sykes and Loris Baz (Kawasaki), PATA Honda (Jonathan Rea, Leon Haslam), Leon Camier (FIXI Crescent Suzuki), Michel Fabrizio (Red Devils Roma).