ATV Florida Forum

whooooo willl winnn??!!!!!!!!!

kfx all the way

its been proven kfx/z 400 is faster stock and modified.   i have kfx 400 with lil work and stock 400 ex said he could win i spun through 3rd gear and still took him by 4  bikes at the end. when we racd and i was stock and so was he i had him by about 2 or 3 bikes

x2 on whats said above, this is the for sale section... what the hell?

anyway, i voted z400 not just becasue i have one, its really not even a comparison. the z is just light years ahead of the honda, i wouldn't even consider them in the same class really. they are both nice bikes for sure, but realistically the z400 is just alot more advanced than that old air cooled 400.

Agreed, plus in addition with the liquid cooled system, the z/kfx/dvx is a dohc engine.

suspension is also superior on the newer z400s, the older ones without the resi shocks are still fairly nice, couldnt say if they are alot better than the 400ex but i would be willing to bet it still rides beter

I voted for the kfx400, my son has the z400 and he has countless wins over 400ex's

It's leaps and bounds better, handles better, faster, all years have reverse, unlike the 400ex which only had reverse 05 and up. Suspension on 05 and up is superior like chevy1500 said.

Z/KFX....If there is no rider error.. Its really not that big of a difference, one mistake and the EX will take it. The Z only has one horsepower more stock to stock, the suspension and frame geometry + newer and liquid cooled is what puts the Z/KFX on top.. I really wouldn't say its as big of a difference as you guys make it seem like in a straight line drag, any other situation and you have a different story for the Z.. Just my .02

I'm not saying its wayyy faster on a straight, I am saying its a better overall bike, the ergonomics, suspension, handling, etc..

As far as reliability goes, I would have to give it to the 400ex. I know a few people that have 99 400ex's that have never had an oil change.

hp ratings seem to amaze people but they mean literally nothing. a stock obs chevy rated at 200hp will outpull a newer 300hp rated 5.3 because theres are such huge diferences in were the power is at and how useable it is for different situations, just an examples that comes to mind. the z will plain out roast a 400ex in every category, i wouldn't call them close to each other by any means.

EX (2x.x is stock)-
http://ctracing.com/trx400ex1.htm

Z/KFX (2x.x is stock)-
http://ctracing.com/z400_kfx4001.htm

Chevy, I know what you mean, however the power curves are relatively similar throughout the rpm range. I know a Z/KFX will take the win, and that it is a better, newer, more technologically advanced bike, i'm just stating the fact that they are both 400cc machines (well maybe minus a couple cc's to be correct) with similar power output.. Drag racing, is mostly all power and rider skill so if one of the riders mis-shifts or launches crappy, i'd say the other would take it..

The better rider.

yeaa kfx all the wayy babyyy

Drag racing is such a goon sport. You can put an ignition kill so that when you shift at WOT, you dont have to let off the throttle or wait for your clutch to catch up to what you just did.

Take it to a track.. with turns.

But my vote stills goes for the z/kfx.

why the hell did my post get deleted

Comes down to the rider.
I've taken all kinds of 450s on the track with my 400, bu in straight lines they will blow me away.

Exactly. Power is nothing if you can't control it.

kfx/z.... sorry brandon lol

the 400ex isnt even liquid cooled.

drag racin where it at. it seprates th lil boys from men

drag racing is fun, but it proves pretty much nothing as stated above. same goes for truck pulls, fun, but worthless.

i still think a z will own a 400ex in a drag race to the point were there could be rider error on the z400 and it still would win, it would be a fairly close race, but not that close.

back when i raced in the 400 class, My ex couldn't pull away from the z/kfx, but they never dusted me. Worse case, my fronts tires would be at their back tires. That little bit of extra horse power didnt help them in the turns though. ;) You have a liquid cooled engine, res. shocks in the front, seems to be the only advantages which might be enough for some. I'd take the reliability of the honda any day though. IF your a good rider, you don't need the fastest bike, you just need one that can hold its own and get the job done again and again...and again....and again..!

what a lame excuse from the 400ex owner! iv had my z400 for 3 or 4 years now without any problems. lol

im not saying the 400ex is a pile of crap or anything. having a preference of brand is fine, but come one, dont sit there and try and come up with a lame reason why it still must be beter in some way, kinda makes you sound like a sore loser...

My Z has been VERY reliable over the years.
I can understand why some of the aftermarket parts are starting to wear on me after years of hard motocross riding.


My 03 has had NO problems other then a broken sprocket.


my 05 has had more problems but they've been caused by aftermarket parts needing replacement after years lol.

who cares. TRX450Rs are where its at.

amen.

dont even start with the 450s, honda is way behind, not that they are junk because they are definitly nice but they were one of the first and everything is becoming more advanced while they are staying the same.

at this point, honda doesn't really have anything too thrilling, just the same old stuff while everyone else is coming out with fuel injected higher horsepower bikes.

and for the record, a nice 250r is my dream bike, so i definitely dont have anything against honda.

hondas quads might not be the best right now, but their new CRF450R is arguably the best 450 dirtbike ever. and its fuel injected

That new yfz looks pretty wicked ::)

arguably? i think it is hands down.

you guys crack me up. cant be happy until you figure some way to prove honda is the best... even though we arent even talking about dirt bikes lol

lol okay. well back on subject, the kfx is pretty good.  ;)

first off your a douche, always have been.

excuse? what excuse?? Honda's are reliable, how many times did that kawi go in for recalls? exactly
saying the the 400ex, an OLD model which went unchanged for a long time, doesnt belong in the same class is like saying push rod engines are more reliable than ohc engines...hahah but seriously saying that is like saying steak doesnt deserve to be classified as meat.
and what bike dominated MX back before 450's...OHHH thats right, the 250r, a honda. Do some research and you'll find that in the 400cc class, the honda has ALWAYS been rated the most reliable. AND honda has always been one of the best all around bikes your can buy, normally at a more affordable price as well.
If you disagree your an idiot. There's no debating that.


oh and my dad can kick your dads assssss!

Boy it sure was nice watching Doug Gust and J.J Spankin them 450's on there Z's  :D

In all seriousness though, both bikes are a great buy. Reliability is pretty much the same...

It all came down to me, what was the most bang for the buck. The Z had an updated engine, better ergonomics, better features.

first off, im not brand loyal to any bike, they are all the same to me. second, a 250r is asbout my favorite quad ever made.

the 400ex is a reliable bike for sure, so is the z400, but thats not what this is about and you used it as an excuse to try and put honda on top when it clearly looses in the 400 class, that doesn't make it a bad bike, honda was the first so of course they are going to end up behind when suzuki came out with the z400, your taking it all wrong becasue of your insane brand loyalty.

While I do agree that some people may have a little too much faith and brand loyalty when it comes to Honda, The 400ex's are not bad bikes by any means.. Before the Z and raptor blah blah 450..etc it was the bike to have for a number of reasons: It is simple and reliable, amd the frame geometry is great and although it may be somewhat outdated it is due to the fact that the components are the same since the initial design.. If you did the same exact modifications to an EX then to a Z they would be practically identical in performance and handling... Its all a placebo type of effect for the newer bike i.e. it feels faster because it feels newer... Keep an open mind on this topic and stop pulling the Honda reliability card and Z whatever card... Z/KFX/DVX is simply a newer, better bike but by no means leaps and bounds ahead of the EX! Its a riders race. 

honestly, instead of debating and arguing on here, why dont you go race the 2 bikes down the street? if you both have bikes then there should be no problems. why ask such a stupid friggin question?

From your original post it seems like you were trying to slam the honda. The bikes i've had have all been great! my first bike was a kawi bayou 300 and i ran that thing into the ground and it took the abuse like a champ. I'm keeping my eye on the new yfz, if it's as nice as everyone is saying, im switching to yamaha. Although if the upgraded 450 quads go the same route the dirt bikes did, transworld mx and their five test riders put the Honda on top with the kawi a hair below it. we'll see.

I didnt get the response i was expecting however. I thought the pushrod thing would get you fired up. lol I love brand/make trash talk because its a never ending debate and it keeps me entertained when I'm at the computer. I love honda even though they have their faults, but i'd ride anything really...besides a poolaris  ;)

yfzs are nice bikes, only problem i know of with them is that they eat batteries becasue of there weak charging system, other than that, awesome bike. theres one thing we can agree on, Polaris is plain out garbage! i cant stand those damn things, everything on them is such a pain in the ass to work on, all through bolted sh*t, nothing removes easily, to remove one thing you need to remove 500 other things in the way which are all through bolted, just a pain to work on.

and i know your waiting for my pushrod resposne lol, theres only 2 people in this world my friend, people who drive trucks with pushrod v8s and guys with there overhead cams who wished they had pushrod v8s lol

they arent light years ahead.  liquid cooled is much better than air cooled but they arent that much different power wise.  Its mostly rider that wins the race when things are similar. 

As far as reliability goes, I would have to give it to the 400ex. I know a few people that have 99 400ex's that have never had an oil change.
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that is not very smart