Maybe the motorcycles were just props. Like the guitar-smashing Veto-Comp they had previously this season.
As for the Power of 10 trip, way cool! I'll be taping every episode now in search of Dani and Amber's guest appearance. I think they'll only show clips from the "special trip" to the Power of 10; time issues mostly. Think they'll announce what day the episode with D and A will air on?