The '90% new' 2012 Desmosedici GP12 MotoGP bike will be making it's track debut at a private test that starts on Tuesday at Jerez.

...the test will last for three days, with development rider Franco Battaini and World Superbike champion Carlos Checa at the controls of the bike with which Valentino Rossi will be aiming to end his longest winless run in grand prix.

Checa confirmed via Twitter that he arrived in Jerez on Monday evening.

Unlike in recent years, the new Ducati machine was not unveiled during last week's Wrooom press event and will instead make its public debut - alongside its factory rivals - during the Sepang MotoGP test, which starts on January 31.

(From crash.net)