ok yea i was drag racing a kfx 400 with my 400ex and i beat him both times. first time it was by like 25 feet, and the second time, by 10 feet, but on that second run i had accidentally shifted into neutral instead of second. i dont think it was really the rider because of the second drag, and both are stock. so do you think that my 400 is faster than his kfx? and if you go to this thing: http://home.earthlink.net/~gellett/400ex.htm and look at the mph's for each gear on the ex and z, it shows higher mph's for each gear on the 400ex, so would that mean it accelerates faster? i have a feeling the 400ex is still the better quad. what do you think?