A private two-day MotoGP test session was held at Motorland Aragon on Tuesday and Wednesday.
The Factory Honda and Yamaha teams were both present, plus the satellite Honda LCR team. Ducati has chosen to test in private at Mugello.
World Superbike star Jonathan Rea was making his second appearance for Repsol Honda, with a view to replacing the injured Casey Stoner at the forthcoming Misano and Aragon races.
Rea improved his best lap time by 0.622s on Wednesday.
Dani Pedrosa set the overall fastest lap on day of the test, with title leader Jorge Lorenzo leading day two.
Round 13 of the 2012 world championship will be held at Misano on September 14-16.
1. Jorge Lorenzo
ESP Yamaha Factory (YZR-M1) 1m 48.244s*
2. Dani Pedrosa
ESP Repsol Honda (RC213V) 1m 48.499s
3. Stefan Bradl
GER LCR Honda MotoGP (RC213V) 1m 48.834s
4. Ben Spies
USA Yamaha Factory (YZR-M1) 1m 48.946s
5. Jonathan Rea
GBR Repsol Honda (RC213V) 1m 50.057s
* Yamaha state that Lorenzo's best Wednesday lap was a 1m 48.351s. However Honda, the Aragon circuit and a picture of the timing screen on the Yamaha MotoGP Twitter feed seems to confirm Lorenzo set a 1m 48.244s.
Fastest Tuesday time:
ESP Honda 1m 47.983s
Official Aragon MotoGP records:
AUS Honda 1m 48.451s
Fastest race lap:
AUS Honda 1m 49.046s
June 2012 Aragon MotoGP test - Best laps:
Yamaha: Jorge Lorenzo
ESP Factory Yamaha 1m 49.187s
Ducati: Hector Barbera
ESP Pramac Racing 1m 50.196s
Honda: Alvaro Bautista
ESP Honda Gresini1m 50.294s
* The Repsol Honda Team did not attend.