Reigning MotoGP world champion Jorge Lorenzo made an impressive start to 2011, leading the timesheets when he concluded testing early on day one at Sepang in Malaysia.
The Factory Yamaha rider later lost the top spot to new Honda signing Casey Stoner, but - speaking before Stoner moved ahead - Lorenzo detailed the present strengths and weakness of the latest YZR-M1.
“I'm happy because it seems every piece we tried was a little bit better,” said Lorenzo. “Not a big improvement, but the 2011 bike has less wheelie so we can open the throttle more in the corners, which gives better corner speed.
“We have new chassis, new engine and new electronics to test here, although they are not [radically] different.
“I'd like more acceleration and power, in general, and rear traction. The rest is quite good – especially the braking and corner speed.
“Tomorrow we will test another chassis and we wait for Bridgestone to give us some new tyres.”
Lorenzo's best lap time of 2min 1.977sec came on his 44th and final lap of the day. The fastest race lap in last October's grand prix was a 2min 2.117sec set by Lorenzo's former team-mate Valentino Rossi.
“I was not worried about the lap time because it is only the first test,” said Lorenzo. “It's also my first test with Alpinestars [leathers]. So I had to get used to many things.
“At the end I pushed a little bit more and I made a 2min 1.9sec. I can improve a little bit, but we are now quite close.
“I didn't see any other riders when I was on track... only Barbera.”
Spies, who packed up before Lorenzo, lapped 0.355sec slower than the Spaniard. Tuesday testing concludes shortly.