Xerox Ducati's Troy Bayliss reckons he has just about enough energy left for this weekend's World Superbike finale at Portimao but he is still determined to end his career standing on the podium.

This will be the affable Aussie's final race weekend on two wheels but he has already wrapped up the riders' and constructors' world titles so can go into the last two races under no pressure.

"I am a lot more relaxed now that I know that we have done what we set out to do. We've won the riders and constructors titles and can tick that off the list," said Bayliss.

"Now I can go to Portimao knowing that a huge weight has been lifted off my shoulders. I'm looking forward to racing there, as what we saw during the recent test days was a very impressive track! It's been a long and stressful year and I'm tired, I feel I have just enough energy left to complete these last two races...

"I would love to finish the season, and my career, with a win so that's my goal this weekend, to ride with no pressure and just enjoy what will be my final two Superbike races!"