the 400ex is a really good bike for dunes and racing and trails and reliable quad, on the other hand a 450r has alot more power/torque and is good for drags, trails, dunes, and tracks
yes i just put one on my 2001 400ex the only thing you really have to do is take the intake manifold and hoen it out some the intake tube is a tite fit but it works
full exaughst(hmf,fmf,whit bros, etc...) k&n airflter(no airbox lid) sprocket setup, 416 big bore no bigger than that, 450r front shox, tires, race fuel.
how to time a 2002 400ex
If you are talking about a klx 450r, then the answer is 96 mph.
The Honda TRX 450R does NOT come with reverse gear.
in a long distance a 450r honda will win
400ex does 60 tops.
no there top speed is about 70 mph about the same top speed of a 400ex i would have to say a Honda 450r , Yamaha yfz450 suzuki ltr450 just because they have more cc's don't mean anything to these bikes{ excluding small bikes}
a stock 2008 450r has 55 horsepower at 11,270 rpm
Approx. 70mph to 75mph is the max. speed of this Honda trx 450r.
definitly
the stock 400ex has 29.3 at 6900 rpm