this achievement is one of the more difficult ones if your not exactly good at the game however if your not an dont care how you do for one lap your in luck for this all you do is simply get in front of the pack or behind them an casually drive around the track without falling from your atv if your good enough to go the whole world tour event without dimounting you will also get 2 to 3 other achievements as well (Flawless Event, Finished an event, Unlocked Stage 2, Completed Stage 1) and if your decent at the game (Hang Time,No Pain, No Gain)