Pastrana, Sinclair, Prepare Huge Tricks for X-Games 17

The X-Games 17 begins this Thursday and riders like Travis Pastrana and Cam Sinclair are aiming high. Stunts at the X-Games have gotten progressively bigger as riders continue to push their limits.

A decade ago, a backflip on a motorcycle was a pretty scary prospect. But riders today throwdown backflips with ease. Cam Sinclair is even preparing to do his double backflip this year at the 17th X-Games, but this time he's going to do it with a no-handed element.

Travis Pastrana, who was the first to nail the double backflip, will push the envelope even further this year when he attempts the 720 Toilet Paper Roll. Pastrana has been working on the trick for the last few years, and he now thinks that it's ready to win the Moto X Best-Trick competition.

Mark Monea, Sinclair's former mechanic, will also be showing X-Gamers a few new tricks when he pulls out his 360 front flip called the carry-on.

Here's a look at some of the crazy stunts you'll see during the X-Games.