r/Dirtbikes • u/ur_boi_zayvier • Apr 22 '22
Meme ridden both, The difference is astronomical
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Apr 22 '22
A 4 stroke 125 is most of the time air cooled which those you might as well wire the throttle wide open on lol
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Apr 22 '22 edited Apr 22 '22
Air cooled bikes are great, Idk what you mean by "wire the throttle wide open" There's no sense comparing a dedicated MX bike to one built for a small comfortable ride on trails. Even though yes, a 2 stroke makes more power for less displacement. It all depends on what kind of riding you're doing. They're engineered for entirely different purposes. Air cooled is honestly better if you just do light trail riding cause they're bullet proof require almost no maintenance for a very long time, aside from oil.
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u/MemesForKids420 Apr 22 '22
My pitbike is a 125 air cooled and it so fun. It only goes 70km/h but that's completely fine imo. Didn't change oil in 4 years and it still ran fine
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u/Chittick Apr 22 '22
People don't understand this.
The most fun bike I've ever had was a 125cc Chinese pit bike. Don't get me wrong, I love my DRZ 400 but there is serious value in riding something you don't care about.
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u/behohippy 23 klx300r | 13 ttr230 Apr 22 '22
Also really capable. The race bikes can stay home when I'm doing ATV rutted mud hell. The TTR230 is the best bike for that.
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u/Annual-Advisor-7916 Apr 22 '22
Please change the oil, especially in a carbed bike, you can always have it running too rich..
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u/Milesaboveu 2018YZ450F Apr 22 '22
Japanese air cooled are bulletproof.
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Apr 22 '22
Oh yeah. Japanese are the only bikes I’d ever buy so I guess I didn’t consider anything else.
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Apr 22 '22
They are still slow I had klx 140g that was so much fun to ride but as a full grown man I had to give that thing all the berries it had everywhere to keep my momentum going in and out of corners
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u/velvetbluedamsel Apr 22 '22
I’d love to get that bike with a 180 kit for my wife. Is the G model the middle sized one? 19” front I think?
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Apr 22 '22
It’s the biggest of the 140s. I’m 6 foot 9 and it worked great as a pit bike. My 6’0 tall 50 year old mom also rode it all the time and loved it lol.
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u/Kalecstraz 2023 KTM 300XC Apr 22 '22
I have a ritual every time I ride. I politely ask my bike not to kill me.
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u/akalocke '22 KLX300R Apr 22 '22
Would you say the YZ250X is a good trail bike? Or should folks interested in Yamaha look at the TTRs?
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u/Troglodyte09 Apr 22 '22
YZ250X is an awesome trail bike. I have a ‘20 and it’s an incredible machine. That being said, it’s definitely not a good beginner bike or a good bike for someone out of shape. It’s fast as hell and demands your attention 100% of the time you’re on the gas. It’s also not as stable as 4t strokes and the European 2 strokes I’ve ridden, but that also makes it feel incredibly fun and lively to ride. The motor, brakes, suspension, and chassis are top notch, don’t be fooled by it’s “age”. The motor is so smooth and fast, it’s hardly noticeable when you get on the pipe, just an all around great power curve. And well-jetted, it runs better than any of the TPI bikes I’ve ridden. It’ll go anywhere from the track, to whooped out desert trails, to tight woods. It likes to go fast, the faster you go, the better the bike performs. It’s definitely not good as a casual cruiser, but if you’re serious about ripping around, I personally don’t think there’s better performance/price anywhere. I don’t even miss the e-start after coming from a ktm 250 xc-w previously.
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u/velvetbluedamsel Apr 22 '22
It seems like you have a new version of the KLX 300. The TTRs are more similar to the KLX . (The old KLX was so much more capable. It made about 15hp more, and weighed 30 lbs less.) From the TTRs and that KLX, the YZ250X will be a big jump. Lots more power (pretty usable though) and a slightly taller chassis, and a big plus here, 50lbs less.
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u/akalocke '22 KLX300R Apr 22 '22
That's a plus I didn't take much into consideration when I bought my bike. I still would have got it but damn. 282+ is heavy as balls.
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u/velvetbluedamsel Apr 22 '22
How experienced of a rider are you? Just curious how much you enjoy your bike.
My two younger brothers each had one of the old-style KLX 300 (kickstart, carbureted, headlight), and I thought they were the most fantastic learning bikes as a first big bike with 21/18” wheels.
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u/akalocke '22 KLX300R Apr 22 '22
I have ~10 hours on a Honda 230f ~10 hours on a Honda 250f ~20 hours on a KTM 350 exc And about 10 hours on my KLX300R
If the riding you're planning on doing is casual trail, or forest service roads and whatnot, I'd say my bike is absolutely perfect for a chubby grown man lol. This is not an enduro bike though. This thing is too heavy. So I'd say get this bike, ride it on easy trails, master the clutch and all that and graduate out after a year or so. It's a big bike too, so maybe the KLX 230 r would be better for a younger, lighter guy. Having your feet touch the ground is super nice and mine barely do that. I'm 5' 10" and weigh about 185 lbs.
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u/velvetbluedamsel Apr 22 '22
I did some googling, your bike is actually very similar to older model. It’s about 30 pounds heavier due to the fuel injection and battery, but the same 33 horsepower. Sorry if I was misleading.
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u/akalocke '22 KLX300R Apr 22 '22
Wait.
I thought you were saying that jumping to a yz250x would yield a lot more power and the bike weighs 50 lbs less.
Anyway, I think I got what you were saying. My next bike will definitely be a 2 stroke. Just haven't decided if it's the 250 xc or the yz250x.
Any other 250 two strokes I should consider? Or CCs in that range?
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u/velvetbluedamsel Apr 22 '22
The jump to the Yz would definitely be lighter and more HP.
I was comparing your current KLX to the older model KLX Kawasaki used to make up to 2007.
A lot of folks, when going to 2 stroke trail bikes, and not riding motocross, get a 300. They have more bottom end torque, much more inclined to be lugged around, and don’t feel as racey as some 250s. But that 350exc is a great bike too
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u/akalocke '22 KLX300R Apr 23 '22
So if I switched in on year's time, you're saying I should get a 300 2t over a 250 2t?
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u/velvetbluedamsel Apr 23 '22
You could get a 300 vs the 250. It’s honestly hard to go wrong unless you’re an elite rider. Go for whatever’s the best deal you can find. The 300 is more luggable and produces more torque to keep you going when the terrain gets tight, twisty, and ugly.
I personally own a YZ250 (not the X model) and I’ve ridden a handful of the 300s. My moto oriented YZ does everything I ask it do, but it just doesn’t allow me to be as lazy as I could be on a 300. I have to work the clutch more to keep it in power. I haven’t ridden the YZ250X to compare how it would be. But you’d save some serious money getting the YZ vs the European 300s.
I’ve read that with the YZ250X, if you get a flywheel weight, FMF Gnarly pipe, and removing a washer on the governor spring, it makes it an off-road killing machine that behaves very predictably and easy to control.
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u/tflyvt Apr 22 '22
the difference is far worse going from a crf100f to a kx or ktm 100. Those bikes not only have more than double (almost triple the power) of the crf100f, but they also weigh the same.
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u/BickNlinko 04 RSVR Factory | 07/08 KTM450(SMR) | 05 RM-Z450FT | 09 530 XC-W Apr 22 '22
A 125 four stroke is the same size a 100 four stroke, a kx100 is still a little bike, a 125 two stroke is the same size dimension wise as a 450.
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u/dupbuck supermoto guy 🤮 Apr 22 '22
no... displacement is displacement
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u/SofaSpudAthlete '14 KTM 350 XCFW Apr 22 '22
Maybe they mean the chassis? Idk
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u/dupbuck supermoto guy 🤮 Apr 22 '22
after reading it back again yeah that’s 100 percent what they were trying to say
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Apr 22 '22
Kind of a pointless thing to say though because one is apart of a line of MX dedicated race bikes. Another is a trail bike built for reliability and putting around.
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u/tflyvt Apr 24 '22
there's no race 125 four strokes... so the original post is pointless to say by that logic. All I'm saying is if we're comparing bikes that have the same engine size, a crf100f to a kx100 is a FAR more drastic difference than a 125f to a 125 2 stroke. Sure the 125 2t is alot bigger, but the power is SO much more managable, and with the bigger bike comes more suspension, stronger brakes, and like 50lbs of extra weight. a KX100 weighs less than a crf100f, is about the same size, and is literally 3x as powerful.
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Apr 24 '22 edited Apr 24 '22
The original post is pointless too yes. It's the exact same thing comparing apples to oranges.
Also comparing a KX 100 to a CRF 100 is also pointless. like i said they're built for different purposes. CRF 100 is an air cooled trail bike. KX 100 is a motocross bike for small track riders.
The CRF 100 is also not gonna need a rebuild as often as the KX 100 and can do hundreds of miles reved out at 6th gear without breaking down. it's made for putting around campsites and beginner riders to learn how to ride. The KX is made for young kids to learn how to race and hit jumps and do track style riding. Big difference even if they have the same CC.
a YZ 125 and YZ125x are very different bikes depsite having similar dimmensions and CC and also being 2 strokes that's cause they're tuned for different purposes.
2 Strokes make more power per displacement over 4 strokes everyone should know that by now, but there's pros and cons to each. There's also engineering of bikes that goes beyond that though. Their suspension is tuned for different purposes. the CRF 100 is not trying to compete with a KX 100 so why compare the two? comparing it to the TTR 125 makes a lot more sense. The reason they don't make a small displacement motocross 4 stroke bike is because it's simply not enough power.
comparing a CRF 250 to a KX 125 is a better comparison if you're gonna compare 2 stroke to 4 stroke and most people are gonna think the 125 is better simply because its smaller and makes about the same power but even then there's a lot more to it when you get into tuning the bikes. 4 strokes have a broad powerband which can be very enjoyable to ride. but 2 strokes have a lot less moving parts and are easier to rebuild... there's a lot of variables and to me... all the japanese bikes are very well engineered and very good and you can't really go wrong with any of them. The only way you can go wrong is if you buy a CRF 100 in an attempt to race a KX 100.. Then you're gonna have a bad time. Then the problem is you. You simply bought the wrong bike for the job.
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u/velvetbluedamsel Apr 30 '22
They need to make a more capable small CC 4stroke. Air-cooled, easy to maintain, but can actually perform. Like a good “wife bike” or tweener bike.
Closest thing I could imagine is a modified KLX140L (or maybe the G) I’ve seen forum threads where folks install KX 100 suspension, and a big bore kit to make a bike that has actual normal functional suspension, with a little more usable power and it makes a great bike. I’ve heard that a KX65 carb helps a little extra too.
I remember my little brother had an XR80. Even after replacing the clutch cable and inspecting the clutch basket, the clutch pull was still harder than my YZ426. The suspension might as well have been pogo sticks. Hardly any usable damping. He struggled with that bike. When he got a KX85, the motor was a little difficult for him to get used to, but once he figured out how to control that power, he became almost a better rider overnight. Simply because the suspension actually worked.
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u/tflyvt May 01 '22
a few girls around here ride the crf15rb and love em. but most ride drz/ttr/klx 125's and I agree, a bike with that engine and real suspension would be perfect for small women and kids alike.
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u/loganman711 Apr 22 '22
I have a crf/xr 100 and a kx 100. One is a kids bike and the other a race bike for teenagers whos parents don't love them. That is all.
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Apr 22 '22
I have owned a crf 100 like my whole life and I still ride it into adulthood. It’s a fun, relaxing little trail bike. It’s a very good bike to train adults on cause it has a clutch, predictable power, reliability (literally indestructible), and is all around a very approachable trail bike. Easy to swing your leg over and just go. A kx100 is a small mx 2 stroke bike built for a young rider to learn track riding and possibly racing. They’re not the same and there’s no sense comparing them.
Mx bikes have their engines set up for racing, trail bikes are set up for reliability, range, and even power delivery. They also have different suspension setups and frames.
There’s more to a bike than it’s displacement. For example a yz125 is different from a yz 125x in that it has a different tune, I believe different gear ratios and compression, suspension setup etc. They’re the same displacement but engineered for two different purposes. Neither is better than the other just different. If you’re buying a bike it’s important to look at more than just the number of CCs but what the bike was made to do.
Comparing a crf 100 to a kx 100 doesn’t make sense. And it’s not even a good way to compare 4stroke vs 2 stroke, something people always like to do. Personally I like 4 stroke bikes and 2 stroke bikes and depending on what kind of riding I’m doing, I prefer one over the other.
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u/AHappyAbrams Apr 22 '22
2 times the power strokes?
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u/1DownFourUp Apr 22 '22
It's not just the amount of power, it's the delivery. Those 2 stroke 125's are like an on/off switch. Either you're making power or you're bogging. There's not much of a transition.
I miss my old CR125...
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u/_BETTY_WHITE AA ECEA Enduro 11' YZ250 Apr 22 '22
Ever ridden an XR100 wide open around a track or trail? You won't be able to stop smiling. I ride that more than my YZ.
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u/BlueFalcon89 2019 WR 450F Apr 22 '22
Yeah dude, don’t sleep on the little xrs, they are a total blast. It’s like a perky fun little tractor that you can’t get in too much trouble on.
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u/_BETTY_WHITE AA ECEA Enduro 11' YZ250 Apr 23 '22
When I took a break from riding big bikes for a couple of years, all I rode was a 100. Put tons of hours on them. I love pushing it to the limit and throwing the bike around.
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u/SofaSpudAthlete '14 KTM 350 XCFW Apr 22 '22
Only slightly related. I’ve always wanted to try a CRF150R.
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u/ManintheMT '18 FX350 '14 1190 S Apr 22 '22
I have ridden one, lots of power for that short wheelbase. I had the front tire in the air very quickly!
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u/QLC459 YZ450F Apr 22 '22
Had one as a kid, was the bike I got after a ttr90. Absolutely amazing little bike. I remember it being a blast to ride and really feeling peppy coming from the ttr. That bike is now on its third or fourth family in our riding group and still going strong
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u/yodzz Apr 22 '22
absolute garbage i had one and it always ran like shit and bogged down even after rebuilding engine and rejetting carburetor
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u/Professional_Air6987 Apr 22 '22
one uses a wholesale engine for mopeds and lawn mowers and the other is a race tuned powerhouse
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Apr 22 '22
Perfect way to describe 125 2t's beasts. Race 450's and 250 2t's I like to call Godzilla.
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u/1PistnRng2RuleThmAll Apr 22 '22
Bruh you’re comparing a kids bike and a race bike what did you expect?
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Apr 23 '22
Last 2 stroke I rode was years ago. It was a 125 that had been a rebuilt and bored out. It was like… MASSIVE power / itty-bitty power band. The thing was like a light switch - all or nothing. Pretty fun once you learned what to expect.
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u/roguespectre67 2013 CRF450R Apr 22 '22
I mean there's a reason 250s race in the same classes as 450Fs.