Jorge Lorenzo crashes on Bridgestone debut
The double world 250 champion clocked a best time of 1.33.550 in his 44-lap stint, but his day was marred by a tumble at Turn 12.
Lorenzo, who was also evaluating some new 2009 YZR-M1 parts, said: “I am really happy because now everyone has the same tyres. I tried a test bike with some new parts and today we were just working on collecting information and understanding the new things.
"I think it was a good day and I made some good laps, so I am quite happy. I had a crash in the afternoon, which was my mistake, it was at turn twelve and I opened the throttle too much when the tyre was cold, but I was not hurt and we were able to continue.
"We need more time to be able to understand the tyres and evaluate them properly. There is a long time before the new season but I am excited that we have started work already.”