Approximately from what I've found 90 to 120.
the yfz 450 is not that fastest quad, Its not far from the top but raptors have more top speed. there is no 250 that will stand up to a yfz 450 stock
I heard the Suzuki has more top end speed but the YFZ is quicker
I don't know about the YZF but the YFZ has a top speed of 74 mph according to Yamaha.
They are on the top of your battery
YFZ 450 has 39hp
if all quads are stock then the kfx and yfz will be quicker than the 700 but the 700 wil win in the long run because of its massive top speed, IMO the kfx will beat the yfz
70mph
K&n
2003
About 82mph stock! Very trustworthy ATV I would recommend.
Raptor
vehicle identification number