The theme from "Jaws" could play over the public address Tuesday and Wednesday at Sepang after rookie Marc Marquez's stunning first day of testing Tuesday, when he was third overall and just 44-thousandths of a second behind leader and Repsol Honda teammate Dani Pedrosa.
Every rider in the premier class - including multiple World Champions Jorge Lorenzo and Valentino Rossi - should beware of the hungry new set of teeth in the MotoGP pool because Marquez claimed he wasn't using any new parts on his RC213V and was still was nowhere close to comfortable with the bike.
Marquez said he still is adjusting to carbon brakes, the extra grip provided by the Bridgestone front tire compared to the Dunlop rubber used in Moto2 and the higher weight of a prototype bike. These new variables caused him to have problems in the braking zones, especially in tight corners at Sepang.
"What we are seeing now reflects the reality again," Marquez said told German media. "I know not even the limit. And I'm far too cramped. If the motorcycle is moving strongly in the braking zones, I understand these reactions are not really. Perhaps I could not brake as aggressively.
"But I'm also curious to see how my muscles feel tomorrow morning when I get up."