Dani Pedrosa has revealed a 'technical problem' caused his last-gasp defeat in the 2010 Spanish MotoGP at Jerez.

The Repsol Honda rider led last year's race from the first turn until the final lap, when countryman Jorge Lorenzo overtook him at the end of the back straight and went on to win by half a second.

Lorenzo had closed a two-second gap to Pedrosa in less than five laps, prompting speculation that Pedrosa's RCV had suffered some form of malfunction.

Dani didn't mention it in the immediate aftermath, but speculation grew that his Honda had either been low on fuel or had needlessly gone into fuel-saving mode after some form of sensor problem.

In the run-up to this weekend's 2011 Spanish Grand Prix, Pedrosa didn't elaborate on what exactly the technical problem had been, stating only that it had prevented him from winning.

"I like the Jerez circuit and it has always been good for me, although last season I had a technical problem that prevented me from winning," he said.

Pedrosa heads to this year's event with physical rather than technical problems on his mind, having dropped out of the victory battle at round one in Qatar due to numbness and a lack of strength in his left arm.

The numbness has been present since his collarbone-breaking crash at Motegi late last season, but the Spaniard expected to start this season fully recovered.

Pedrosa now faces an anxious wait to see how strong his arm will be on Sunday, having undergone further medical checks since Qatar.

"Regarding my shoulder, this week I had some more medical checks and [on Thursday] we will have the results and the doctors' evaluations and recommendations," he said.

Pedrosa, third in Qatar behind new team-mate Casey Stoner and Lorenzo, has finished on the podium at Jerez in all five race starts as a MotoGP rider.