I have my doubts about these videos. First, i don't think that is a 70hp banshee. I have a friend who has a 60hp banshee and he is a very good rider. He smokes us all easily. By all i mean a modified Predator, a CRF450 in a 400ex frame and a modified Cannondale. All are very fast bikes, but he beats us every time. If that banshee in the video is 70hp, there is no way that YFZ would even be close to it. sorry. Second, who is the putz riding the z400 in that video. what did they do, get a first time rider to ride it and a veteren racer to ride the YFZ. You can hear the guy on the Z400 shift when he goes by and its sounds like someone that does not know what they are doing. I think these videos show that the YFZ is fast and it is, but its not that fast.