I would have to say KTM because it goes up to 690
The Fastest Dirt Bike Is A KTM.
The fastest dirt bike ever was the Honda CrF450r. This bike had a four stroke engine liquid cooled that could produce 499cc.
no kawasaki is the fastest as i know
No, I think the Honda 650cc dirt bike is the fastest or a GP racing bike.
it depends, what brand is it
honda Husqvarna also makes a dirt bike!!!