top speed of 400ex

[mgaskey]

what is the top speed of a stock 400ex; a 400ex w/ no airbox lid, a k&n air filter, hmf slip on, and a 170 main jet?

[lol]

stock 67-68

all the other stuff hmmm maybe 73-75 possibly:confused:

[fasterthanyouex]

ya im was only doign 62(trailtech) on my 400ex stock besided k&n filter so i would say close to 65-66

[Ryan]

As far as top speed, your not going to go any faster with those mods. Your not changing the rpm's, sprocket sizes, or tires.... Therfore, your top speed doesn't change.