View Full Version : top speed of 400ex
mgaskey
07-13-2004, 10:41 AM
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?
stock 67-68
all the other stuff hmmm maybe 73-75 possibly:confused:
fasterthanyouex
07-13-2004, 07:52 PM
ya im was only doign 62(trailtech) on my 400ex stock besided k&n filter so i would say close to 65-66
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.
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