they can prob hit about 80 mph or 70
it goes 320 or about 300 like most bikes now
on groomed trail i can hit low 90's on my fx
fast
if it is a Yamaha wolverine 450 it will go 61mph
a Yamaha blaster can go around 75-80
155mph
Not that fast but about 50 with no upgrades
the Yamaha ttr125 goes about 50 to 55 mph
About 75 mph
about 70 to 80mph
700mph