Tech 3 Racing Team rider Bradley Smith admitted to being "disappointed" with his seventh-placed finish at the Japanese Moto2 Grand Prix on Sunday.
Oxford-born Smith recently signed a deal to race in the MotoGP World Championship in 2013 and 2014.
The 20-year-old started the race fourth on the grid but slipped back to seventh with a lack of rear grip hampering his bid for a fourth podium finish.
"We can't be satisfied to start in fourth and finish seventh," said Smith.
The race was won by Italy's Andrea Iannone with Spanish rider Marc Marquez now holding a slender one-point advantageover Germany's Stefan Bradl in the Moto2 Championship standings.
Smith, who will race for Monster Yamaha Tech 3 team when he switches to MotoGP, felt before the race that he could have been in the mix for a top-three finish.
"I started the race full of confidence that I could compete for the podium based on how competitive my times were in practice and qualifying," admitted Smith.
"I'm not really sure why we didn't have the same grip, so we need to analyse deeper and try and find an explanation.
"In the early laps I couldn't keep my pace and lost a few places, so I suppose I should be satisfied that I kept my head down and battled hard right to the end to take seventh.
"My pace was consistent over the final 10 laps, so that is a positive, but I am pretty disappointed to finish so far back.
"We'll put this result behind us and try and fight again for the top six in Australia, which is a track I can't wait to ride the Mistral 610 at."