Here is the full list of all 15 MotoGP 14 Compact achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Modify the bike settings via Engineer in the pit menu.
Win a race with tyre wear active and damage active, in any game mode
Complete your first online race
Complete a race at Sepang in any game mode
Complete a race at Silverstone in any game mode
Complete a race at Motegi in any game mode
Complete a race in Catalunya in any game mode
Complete a race at Brno in any game mode
Complete a race at Mugello in any game mode
Complete a race at Sachsenring in any game mode
Complete a race at Le Mans in any game mode
Complete a race at Termas de Río Hondo in any game mode
Reach 300 km/h and maintain speed for 2 seconds in any game mode
Complete a race at Jerez in any game mode
Set a time on any track in Time Attack mode