Reigning MotoGP world champion Jorge Lorenzo, whose 2011 points lead has been reduced to just seven over Casey Stoner, wasn't happy with his pace during Friday practice for the British MotoGP.

The Factory Yamaha rider, winner from pole in the 2010 event, was third fastest - one second from Stoner and only a few tenths quicker than satellite M1 rider Cal Crutchlow - in the dry morning session, then fifth in the patchy wet/dry afternoon practice, when he was over 3secs from Stoner.

"I'm not so satisfied with the day," said Lorenzo. "In the morning I tried to ride the same pace as last year but I was one second slower. In the afternoon I wanted to ride in dry conditions but it started to rain so we had to ride on that.

"I made so many laps with the rain tyre that it was destroyed whereas some of the other riders switched to a fresh tyre so were faster than us. I think we have a good set-up for wet conditions now. We must focus on improving both myself and the bike, I will try to be on the front row tomorrow."

Team-mate Ben Spies, who took his first MotoGP podium in last year's race, was more satisfied with his brace of seventh positions.

"It was a good first day, very productive," he declared. "We were quick in both sessions. I've never had a really good feeling with the bike in the rain before but here we didn't have to push too hard and were up close to the front guys.

"There is a couple of things we wanted to test in the dry which we didn't get a chance to do but we still ended up with good consistent fast times. We need to be a bit quicker but we'll get there. We need to be on the first two rows tomorrow to be able to fight for the race."

"Tomorrow the weather forecast is good, it should be dry so we can finalise the job we couldn't do today and I'm confident both our riders will be ready to challenge for the best possible qualifying positions," stated team director Massimo Meregalli.