Travis Pastrana Practiced Trick-Gone-Bad for 5 Years

Travis Pastrana's devastating bone-breaking crash at the X Games last night was a COMPLETE shock to us -- because just hours before the wreck, Travis told TMZ he had been practicing the trick for 5 years!

Travis busted out the move -- which he dubbed the "TP Roll" -- during the "Best Trick" competition at X Games 17 in L.A. .. when he lost control on the landing and broke his right foot and ankle in the crash.

Even worse -- Travis was supposed to make his debut as a NASCAR driver this weekend -- but now those plans have been put on hold.

Sucks.