What's the fastest bike on mx vs atv unleashed?

what is the fastest bike in the 250 class and the fastest bike in the 125 class on mx vs atv unleashed?

me :D

The fastest bike on MX vs ATV Unleashed is the Pro Circuit Brand of Bikes. You can get them by doing 1 of 2 things. 1st you can do it the legitimate way by going to the Single Player mode, then by going to the Freestyle, then by going to the High Score Challange mode. Once in the Track Selection Screen, choose the New Orleans FMX track. In the challange you must perform a tripple backflip into a wheelie until you reach 200,000 stunt points. This unlocks the Fastest bike in the game. 2nd you can do it the cheating or easy way by going to the Options mode, then by going to the Cheat Codes mode, and then by entering the following phrase of LEADFOOT. Note! : Not only will you unlock the fastest bike but you will also unlock all of the machines in the game.