A damp track caused by overnight rain meant that although the track opened at 10am, all bikes remained in the pits until 11:15am.

All twelve manufacturer riders are present for the three-day test, plus the Forward Racing and BQR 'Claiming Rule Team' teams.

The test marks the first time that the new version of the Ducati GP12 has been seen in public.

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World champion Casey Stoner is not testing today after aggravating an old back injury whilst stretching this morning. The Australian is now resting and aims to return tomorrow.

The four laps credited as Stoner's by the circuit timing screens were actually set by test rider Kousuke Akiyoshi, whose name we have used in the list below...

1. Jorge Lorenzo ESP Yamaha Factory Racing 2m 1.657s (Lap 17/17)
2. Ben Spies USA Yamaha Factory Racing 2m 2.383s (24/25)
3. Dani Pedrosa ESP Repsol Honda 2m 2.433s (37/38)
4. Hector Barbera ESP Pramac Racing 2m 2.773s (24/25)
5. Valentino Rossi ITA Ducati Team 2m 2.824s (17/22)
6. Cal Crutchlow GBR Monster Yamaha Tech 3 2m 3.099s (15/15)
7. Alvaro Bautista ESP San Carlo Honda Gresini 2m 3.153s (21/23)
8. Katsuyuki Nakasuga JPN Yamaha Test Rider 2m 3.418s (15/22)
9. Andrea Dovizioso ITA Monster Yamaha Tech 3 2m 3.448s (12/12)
10. Stefan Bradl GER LCR Honda 2m 3.668s (28/29)
11. Nicky Hayden USA Ducati Team 2m 3.969s (19/19)
12. Karel Abraham CZE Cardion AB Motoracing 2m 4.513s (25/26)
13. Franco Battaini ITA Ducati Test Rider 2m 5.292s (8/15)
14. Kousuke Akiyoshi JPN Repsol Honda 2m 7.163s (1/4)
15. Colin Edwards USA Forward Racing (Suter-BMW CRT) 2m 8.240s (12/15)
16. Ivan Silva ESP Avintia Racing (FTR-Kawasaki CRT) 2m 11.267s (12/12)
17. Jordi Torres ESP Avintia Racing (FTR-Kawasaki CRT) 2m 12.816s (13/25)

Official Sepang MotoGP lap records: Pole position: Valentino Rossi ITA Yamaha 2m 0.518s (2009) Fastest race lap: Casey Stoner AUS Ducati 2m 2.108s (2007)

Fastest 2011 Sepang test time: Casey Stoner AUS Honda 1m 59.665s (February 24)