I've decided to retire from top class racing. It has been an incredible experience and has provided with me some unforgettable moments.

With roadracing, it takes a lot more time and money.

I've always like roadracing, but you know how it is in a family when you're young. They thought it was a little too dangerous so I started with Trials riding.

So while I was studying, I rode my Trials bike, then I moved to roadracing.

In Malaysia where the front end pushes so much, extra engine braking is really going to help you.

I've enjoyed winning races in both 500cc and MotoGP and enjoyed leading the world championship and contesting it right up until the end.

I'm proud of my triumphs. I've dreamed of being world champion, I've had some difficult times and they've made me value the good times.