CLICK HERE for pictures from this week's Sepang MotoGP test.

All 17 MotoGP race riders are present at test, which marks the first time that the likes of Valentino Rossi (Ducati Marlboro) and Casey Stoner (Repsol Honda) have ridden in their new team colours.

Stoner was fastest on day one, by 0.403sec over Yamaha's reigning world champion Jorge Lorenzo.

Sepang is the first of three pre-season MotoGP tests. The next test will also be at Sepang, later this month, before a final test at Qatar in mid-March.

Qatar hosts the first race of the year on the evening of March 20