might go to 4 stroke

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#1
I currently ride cr125. where I live its mostly, well, pretty much all woods. Have any of you guys converted from 2 strokes to 4 strokes? I was thinking about an XR400. How different will it be from my cr? It should have more bottom, right? I know more torque. How about acceleration? weight of bike? How do you like your xr400?
 
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#3
The difference will be very noticable. I've raced (and trail ridden) everything from a CR125 to a Husaberg 501FE. The two bikes you mentioned are bookends of the spectrum and hard to directly compare. Momentum is your friend if your want to ride either fast, but the similarities stop there. The Xr will accelerate slower, unless traction is an issue (slippery rocks, etc.). The XR is much less nimble as well, but a great trail bike (and can be ridden fast). The CR takes less effort to go fast and the XR takes less effort to go all day.
 
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#4
I Just got a KLX 300 and I have also riden an XR 400. The KLX is close to your 125 and has grate power, but it has grate power down low. It feel s like a feather and i just came off an RM 80. So i wouild recomend the KLX 300 over the XR 400. Also the KLX handels much better.:cool:
 
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#5
If you are after something roughly comparable to your CR wait for the CRF450R (new MX 4 stroke from honda due soon) It is reportedly around 102Kg and 55Hp, if this is even close to being true it will blow your CR to the weeds. Exciting prospect is it not! :D
 
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#6
I agree with an earlier post, you would like the KLX300. I have owned losts of different bikes and the KLX was a good all around bike. I would also recommend the KDX220, it combines the best attributes of 2 and 4 stroke bikes.
 
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#7
yama's yz250f (for mx) and wr250f (for trails) are the way to go. great suspenders, light weight, fantastic power, and super agility. the primary difference (besides the obvious headlight/tailight) is that the wrf has a lower first gear and higher 4th and 5th gears than the yzf. so you can crawl along in the knarly rocks in the wr's 1st gear, and then in the open (4th and 5th) it will be faster than the yzf. but for mx, the yzf's close ratios keep you way up in the powerband. and the yzf is designed to be a "big air" bike. so just figure out what you are going to do more of then lean towards either the yzf or wrf.

the crf450 and cr125 are not "roughly comparable". the crf will have much more power and the traction from the 4stroke will allow it hook up much better. so coming out of the turns you'll be going *a lot* faster once you get used to the ride. the xr400 is a completely different animal than the crf450; the xr is an older design especially suited for long desert rides, and the crf is honda's entry into the 4stroke mx racebike scene. also the xr is known to be super reliable, while the crf is new and unproven.

if you go from a cr125 to a yz426f or crf450, you should know that the words "scary fast" are going become part of your daily vocabulary. especially in tight trails. the tighter your trails are, the more nimble the bike you want. 426 or 450cc's is a bit much for the tight stuff, just too much to throw around, and they will tire you out. that's why kdx200/220's are so fast in the right hands-- good power and great agility. the klx300 is also a truly effective woods bike, but the design (esp. the suspension) is a bit dated. reliable though. so in my opinion, the best go-fast 4stroke trail bikes currently are the yama yz/wr250f and the midrange ktm's. there's rumour of a 250cc ktm 4stroke but who know's when it will show.

the wrooster
'01 wr250f
(160 miles so far and i'm averaging a crash per 20 miles...)
 
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#8
4-Smoke.......?

Hurrrumpgh to WROOSTER.......! ! ! ! ! !
oh yeah....
and Ditto too!
200%:cool:
He is all over it!.........

\HR
 
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#9
h-r, you ride in the woods with your 500?!?!? huevos grandes, mon!

when you are woods riding here in the east, about 0.1 seconds after you accidentally leave the trail you start looking for an escape route (with or without the bike) that doesn't involve a tree. people who ride without barkbusters must have a bone doctor in the familiy and not have a job that requires use of their hands.

the wrooster
 

Rodzilla

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#10
Ceric,

I've gotta give the nod to Wrooster. He's right. If you want to be close to the feel of the CR with the positive aspects of a thumper (mileage, no mixing, etc...) look at the WR250f or wait for Honda to do one (may be a while)

I love my XR4 but its gonna be about 75 heavier than your CR with roughly the same H.P. The XR is a fantastic trail bike and will go ANYWHERE you want it to go. I both trail ride and race it (not well). Ive logged over 5,000 miles in the last year and the bike still feels fresh. But I'm ready for something lighter and more updated. I'll keep my XR for things like Baja and those loooooong days in the saddle but I'd rather have a KTM400 or WR250 if I could.

Rod
 
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#11
Perhaps "vaguely comparable" may have been a more appropriate phrase.
Having said that, are there any other 4 strokes a CR125 could realistically
be compared to? Not really, and I agree that the 450 is more inline with
the CR250 as far as a comparrison is concerned. My point was however
that the XR400 wasn't really in the ball park for what I percieved as his
need.

;)
 
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#12
WROOSTER (IMHO) Nailed it....

John:
Ive got two WRs (sons and mine) we have done the YZ timing etc.....
I would have to say that the WR is pretty close to a 125......if there is such a thing when you try to compare a two stroke racer to a four stroke, just the whole HP/Torque/weight on and on and on. Where I ride there isnt a 125 that can stay with my WR and no I am not that great of a rider (lots of learned dirty tricks maybe (did I say that?)...)......and really only a few 250 (two smokes). THe WRs have about the same HP as an XR 400 and quite a bit lighter (Rodzilla said it first!!!).
I moved "over" from a CR500......I can ride the WR in the woods and trails all day and not get beat and still go faster than someone my age should (how fast is that???......chase me!)
I digress. . . . . . . .
Dirt Bike just did a test of woods/play bikes......did a woods Modified YZ 125, KDX 220 and the KTM 200. Each of them had their own strengths and weaknesses....with the KTM coming out on top......then they did they ol......KTM 200 against the WR250f.....outcome.....well....given the source of the magazine and the writers......:confused: I would say the WR did.......
Find someone with a WR and give it a saddle rub in the woods.....my personal guess is that you will love it.......I fell in love with mine first ride....its awesome for the kind of riding I "try" to do!:eek:

And WROOSTER......a 500 in the woods......yes it is a religious event most of the time.....but heaven help you if you are behind me and I just touch that throttle......I have about a dozen "enduro headlight" stickers on the side of the tank (ala fighter ace)...and a few knuckle, nose and teeth ones for those that follow but dont pass!......rode the 500 for the first time in a loooooooong time this last weekend.......oh my......coming off of the WR to the 500........wooooooooooh:scream:
took me a while to peel the goggles off my eyeballs........I forgot just how much HP that thing makes.........(love it!)
HR
:cool:
 
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#13
Ummm... yeah, I was speaking with only Honda's in mind (massive bias :p )
I agree that the WR250F or YZ250F is probably the most obvious choice available currently, and I've heard endless good reports about it.

HOWEVER ..... :eek:
The CRF450R has many if not all Yamaha riders quaking in their boots!! After its imminent success I think it's more than probable there will be a CRF250R which will also smoke Yamaha's little blue beastie! This is all conjecture, and we are yet to see how good the 450 is, but based on honda's figures (taken loosely of course) the 450 shouldl have the goods. We all know that when Honda is dedicated to making A1 gear it happens. Doohan had to be riding something decent to get him all those titles, then again it may have just been the Aussie sitting on top ... ;)

cheers.
 
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#14
"...quaking in their boots"? <-- i think not

johnk wrote:
> The CRF450R has many if not all Yamaha riders quaking in their boots!!

actually, the riders with yama's 250 and 400/426 four strokes are out riding around, ripping thru the whoops, jumping doubles & triples, winning races (mx+hs+gncc), and generally having a blast. what are the people with CRF450R's doing? the only one i know of can't seem to stay upright at national outdoor motocross events.

:*)

it's nice that you have 20-20 foresight, and are able to say that the crf450r will be a (insert yama/kawi/suzuki/ktm/etc. here) killer. i say that a) 90% of what honda knows about 4 stroke mx they learned from the yz400f & yz426f, and b) the crf450r will be a great bike -- someday. i'm not trying to get in your face here, just reminding everyone that right now there's just conjecture on the crf450r performance (weight/power/etc.) and that the crf250r is a long way off (read: you could win 1 or 2 seasons worth of races on a yz/wr250f before sitting on a crf250r). and as for mx racing, i think that ktm (i.e. langston) has really poked the collective japanese eye a bit. but bikes don't win races, riders do. shane watts could ride a sears mini-bike and crush all of us on yz250f's, crf450r's, or any other steed for that matter.

the wrooster
'01 wr250f
 
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#15
Wrooooster. . . . .Crush???????

well with me, he would only need a poorly running riding lawnmower (in reverse) and that would be more than enough!......
Been passed by Roseler once when I "thought" I was ripping.......
:eek:
almost got off my bike to see why it wasnt running he went by me so quickly......
sigh.....
well I do it for fun, not $$$$$
(if that aint obvious!)
HR :cool: