A 400ex will run 69/70 mph. That's on black top running through a road construction radar.

 

ok 66-70 mph,my buddies 02 400 with a pro circuit pipe,jetted,k&n filter with a aftermarket open airbox only does 66mph,thats why i said that[img]i/expressions/face-icon-small-smile.gif[/img]i wish it did 70,because that would mean my scrambler does 72-74 mph[img]i/expressions/face-icon-small-happy.gif[/img]

 

The 450 has a tall 1st gear. Maybe that is why the 300 is jumping him off the line.

 

nw missouri, i live in cameron, its about 50 miles away from kansas city

 

no way, my stock kawisukicat will only run around 65...and i smoke 400exes everytime i go riding....(i ride with 2 400exes and a bomb 650) thats what my friends have...and one is piped and still it dont come close

 

No need to argue over top speeds...too many variables. Wind, slope, tire pressure, accuracy of GPS, whether you are actually at rev limiter, all could affect the outcome.

 

ya but dont forget, a strong running 300 will only make 13-15 hp stock, while a 450 makes about 35-37. i dont think a tall first gear will hurt it

 

I agree...there had to be some major $ into that 300 motor or it simply wasnt a the 300 motor at all

 

mr hp on the bomb forum has a 200 x that he can take 450's with so anything is possible

 

One of the last Dirt Wheels had a story about a 330ex that was neck and neck with a z400 in the drags, and they gave them a rolling start because with the longer swingarm the 330 was getting the hole shot. I imagine that machine woulda been a fair race against a 450r. Might not win but I'm sure it would surprise people.

I just cant see putting that kinda money in a 300ex...