KTM SX 250 2025 vs 2022

Ask yourself do you want to keep it more simple for you. To work on fix if it has problems. Or are you are willing to learn the new tbi tech. Along with the added maintenance the new tbi will require. 

The added sensors on the tbi bikes going to require new tools. For diagnostic purposes incase it throws a code or a sensor fails and it suddenly starts acting up. More things to potentially go wrong. Maybe start considering replacing after so many hours. 

The 22 will be a more familiar setup your used to. Won't have to learn new tech. More simple for when things go wrong.  

I don't think the difference between the two performance wise is vastly different. Same with the chassis. I have a 21 250sx it's definitely not holding me back. Especially now that I've got it dailed in. 

I’ve had the carbed ones and the tbi’s.  As a 250, a carbed bike is stronger, no doubt.  I’d say a tbi 300 is probably equal to the older 250sx power-wise, although far smoother.  

Both chassis’s work well for me. The Tbi bikes feel bigger and heavier and honestly that’s not such a bad thing.  I like the stability and accuracy of the newer chassis more.  

Reliability, both are great.  150 hours on my 300sx and one piston (didn’t look like it needed it), one battery, and still on the stock clutch.  

As for tuning, the tbi has always run perfectly for me and I am happy to not have to rejet or clean pilot jets regularly.  

This has been my experience with my 23 300sx also… 135 hrs, 1 top end for preventative and powervalve service and 1 clutch while it was apart for top end….original battery. I did have EcU flashed for smoother hit after 40hrs of running it stock….one or the best bikes I have ever owned….with that said, if you get a good deal on a carbed version of the 18-22 250”s, they are great bikes too…..

Ive owned 6 of the 250sx, the most recent being a 2021. Tried a TPI (garbage), and now have a 300sx TBI. I have 120hrs on the 300 with zero issues, and no spooge as some have had. Running a RK Tek head insert and PC pipe/silencer. I love my 300, but if I didn't have a jacked up knee and could live without e-start I would be back on a carb 250sx... Especially for tighter tracks.

I have a 24 250 xc right now.

The bike has spring forks, so with that said it rides almost 4 stroke like. It's planted and has good front end traction.  Im not sure if its the few extra pounds over the carb bike or what.  

The fueling is whatever you want.  The tbi is smooth and easy to ride fast, for me its going to be hard to revert back.  I like the smooth strong pull.  The 18 felt like a rocket but in the end it was counter-productive for me because it wore me out.  Both bikes are fast.

I did not like the lack of over rev on the 24 especially in second gear for whatever reason.  Had some extra cash laying around so I put the pro circuit pipe and silencer combo on and was sorta shocked at how different the machine ran.  Better everywhere especially up top.  It's a must imo.  

I like the fi bikes and probably won't go back but I'm not carson brown either.

Should add i ride in the woods so different tool for the job than the my mx brothers 

If you are 200lbs and 6 ft plus, get the newer chassis.  Back end holds up much better and doesn't ride low and squat in the rear.

I have a couple rides on my 300XC and just got to race it last weekend, these things are really awesome. The chassis is great but the engine and fueling is just unbeatable, there is always two gears available to ride in depending how aggressive you want the power to be and the bike is more than willing to do either one. 

I put 280 hours on a 2021 350 and this chassis feels a little more sharp and scalpel feeling to me than the older one, the rear seems more composed and seems to ride a bit higher. I do have MX Tech Raven inserts in the forks.

Just an opinion from a slow old guy...I ride everything from MX track to cross country/GP and some single track (about equal parts each and with the same bike). I'll go to my grave saying the motor in my 2023 250 SX is the best I've ever had. I have it flashed with the most recent KTM map (should be the same as the 25). I have about 75 hours on my bike. Zero issues. And I mean zero. Does it FEEL as fast as the carb bikes before? No. Is it as exciting as the carb bikes with the big hit? No. Can you go as fast (or faster) on these than the carb bikes? I think the answer is yes unless you are a top level "B" guy or above. The new TBI bikes are way more 4 stroke-ish in power delivery. I love the EFI motor. No jetting changes...just a crisp, great running bike every time.

I bought a leftover 23 250 at the start of the year (flashed with the 25 maps), took it home and put a PC pipe straight on it (stock silencer), never rode it with the stock pipe.

I had a 09, '14 and '18 250 (all with full PC or DEP exhausts), along with (too many) KTM 250F & 350F's in between. The 14 was my favorite 250, that bike was a monster, and I never really clicked with the 18. I searched on here for reviews of the TBI bikes before I got mine and honestly had second thoughts about getting it after reading all the negative stories here, but damn, this 250 is the best bike I've ever had, and I was pretty stoked on my 24 350 before this. I'm definitely a fan of the new gen frame over the 19-22 generation, again I'm not understanding why people still say they prefer the older generation, to me they're night and day better now.

I'm not in agreeance with the stories about these bikes being slow, this bike is every bit as fast as my 14, they maybe don't have the initial bark the 14 did but its superior to those older models hands down. IMO the top end & overrev pulls harder and further than the 14 ever did. I feel no vibration, no more jetting, experimenting with different needles etc, I'll take this fuel injection all day long over a carb, I wasn't sold on the E-start when i got it but I don't think I'd go back now. People like to poo poo the new tech and sensors etc but have no problem with the 4 strokes using it for years now?? 

Whatever blows your hair back, but I love mine.

I dont know what people are talking about either.  I ride woods and have to back down to the white map after awhile because the 250 xc is a handful in the green map and on the gas.  

I think the carb bikes have that "hit" so you think your going faster.  I came off 2 yz's in a row and I dont know how anyone objectivity could say that the yz is a better machine.  Reliable? Maybe?  Cheaper? Yes.  But the ktm 250 tbi is just awsome.

Been racing 250SX in open A and 250 A for a long time. Dyno’s and scales don’t lie, the TBI 250SX makes less power and weights significantly more than the 22’ 250SX carb. The tbi don’t have the grunt out of the hole like a carb. I’ve noticed it’s rare that someone will not think their new bike is great, if you have both a 22’ and 23’+ you will be able to feel the weight and power difference, I noticed the weight the first time I loaded my tbi. Not that the TBI is bad but that last era 250SX with the carb was a superb bike with great reliability, light weight and good handling. My tbi was a plug eating dud out of the box but I have it sorted and working the best I think it could now(3 aftermarket remaps and 2 heads later) no real complaints now but don’t think it’s a bike that I can pound hours on and not worry about it like I did with my prior 250sx

I have a 24 300sx. and a 24 250xc. I've ridden a new  yz 250 the same day on the same track as my 2 bikes. The yz makes my 250 feel anemic. The 300 is is fast and so dam easy to ride. The 250 xc  (mine anyways)  feels like it has 5 less hp then the yz and 10 less then my 300. I still love it and it does not affect my lap times.

I hated my 2022 250 SX. I much prefer any 2006+ YZ250 and regretted not buying blue a week after I got the 2022 SX. I could not get comfortable on the 22 SX on the track or off road. The bike felt like it deflected and skated across the ground in a weird way, especially at slower to medium speeds. I do ride a lot of hardpack, but felt so much less traction in corners than any other 250 2T. Looking back I only ever enjoyed the 22 SX when I was riding it at 100% in faster wide open off road at speed. But I always felt unsafe on it on the track that I just didn’t ride it much. I could have given up on it too early, changing tires and a few other things might have solved some issues, but I rode it for around 7 hours and sold it. Bought it new as a leftover in 2023. 

I did not like the 22 SX drivetrain anywhere but on a straightaway. The engine hit fairly hard, but at an awkward time for medium to hardpack dirt. The power curve felt very narrow and like it needed to be shifted like a 125. My 2014 250 SX felt like it hit harder, and at a more optimal time, while having a more broad power too. That being said, the 2022 was a noticeably faster motorcycle when you did ride it the way it wants to be ridden. It was the fastest 250 2T I’ve ridden. I think my problem with the 2022 250 SX was that it was too fast. It was the most “pro” feeling bike in stock form I’ve ever bought. Too fast, too “ready to race” for me. I’m 200lbs, but not that fast. It felt valved stiffer than the stock 450s I’ve owned/tried, again it felt too much like a pro set up for my liking. It was the “worst” bike I’ve ever had, but in reality I think the right person (high advanced to pro riders used to shifting a lot) might think it was the “best” bike ever. MXA seems to say similar things about the 22 250 SX, especially when compared to the YZ. 

I absolutely loved my 2014 250 SX, and every other 250 2T I’ve ever owned. They’ve all been so much easier to ride everywhere at all different speeds than that 2022 SX. The 2014 SX was an absolute monster. It felt like it hit the hardest of any of em, but the 2022 was definitely faster overall. I think the 2014 just hit in a nice spot, and I really gelled with that chassis, so I could really hammer on that hit. I’ve had a 06 YZ 250 and three KX 250s (2002-2006ish) before, and ridden many others. My favorite 250 2T is the 06+ YZ 250, both off road and on track. I ride mainly track, and the YZ engine is by far the easiest to ride on new tracks learning new jumps, and the old YZ chassis/suspension also feels the most neutral and comfortable to me. 

I’ve been riding a 24 350 SX-F lately and loving this newer chassis so much…AND reading that the newer injected 250 SX is “slower feeling with less of a hit” makes me actually want one more since I think I’d like this new chassis with a much more broad 2T powerband like the YZ. TBI should be even more broad. I also like the idea of not messing around with carbs living in California and riding both sea level and 6000-8000ft. But the YZ250 is just so good (read:slower and more usable for me) and reliable, that it’s gonna be hard for me to skip big Blue unless I can test ride a TBI 250 before I buy in 2026. 

I put over 100 hours on Ktm 250 sx 19-22 era & would consider it one of the easiest to ride 250 2 strokes I’ve  owned. 

Did you adjust power valve spring ?

Did you adjust gearing ?

I set mine up to use 3rd in slow speed turns, felt the bike could be short shifted at times or hold the gear, really did do it all so well. 



 

Something must be off with that xc man.  

Never owned a 22 250sx but rode a few and owned a 22 yz250 for a short period. Only got 1.5hrs on my 25 250sx but it's easily the best 250 2 stroke I've ever ridden.

Where did you get the dyno numbers from?

I dont have a dyno but most sources have the 22 sx at around 48 to 49 and the 25 at around 53 to 54.

Hp isnt everything when it comes to dirtbikes but im just curious.

After messing with suspension and feeling the most uncomfortable on any chassis ever, I just gave up. 

2 weeks after buying the 22’ 250 SX, I went and bought a 22’ KX250, and felt immediately more comfortable on that stock. In fact, that 22’ KX was my favorite chassis ever, although I had other problems with the bike (recalls, finish quality/craftsmanship). The 2022 250 SX barely got ridden after. 

The engine definitely could have been improved for my riding. But a YZ250 is such a better starting point for me, both engine and chassis. 

I’m starting to wonder if I got a dud rear shock from the factory, because it handled so oddly. 

 

I think they are just different. I had the opportunity to ride a 250 2 stroke fantic for a few months during Ktm year. Was ok but I preferred Ktm as it what I understood best.

Yes you may have had a suspension issue, or you hadn’t found set up. Many run psi too low in the forks also.

The best thing about the Ktm was the adjustable power valve. If you had that set flush with yellow or red spring it would have felt a handful. 2.5 turns in was sweet spot for me. 

 

It was a handful. I love full size bikes off road, but on tracks I normally only like mellower 450s and 250 2Ts. I don’t personally need any major “hit” from anything modern over 150 2T or 350 4T on the smaller MX tracks I ride. Older 250 2Ts didn’t have 52HP lol, felt more spread out, and are more manageable for me. 

Also, these newer gen KTM (since 2019ish) chassis’ feel so light and nimble to me, almost like a big E-mountain bike. The modern KTM 4Ts feels light and agile like two strokes from two decades ago. Gone is that piggish feel the 4Ts used to have, and in my opinion KTM is leading the pack in terms of that light feeling. I mostly love this modern feeling, but one drawback is the bikes feel less planted (less like a cruise ship) than they used to in my experience. 

I’m starting to think I especially don’t like that newer chassis feel on two strokes. Two strokes have always felt slightly less planted to me, but easily manageable, however the newer chassis feel might exacerbate that less planted feel past my threshold.

I love that old school chassis on the YZ 2Ts. It just feels so planted, albeit a bit less nimble than a modern KTM chassis. Still I think I owe it to myself to try a TBI 250 or 300 SX, and experience even more broad power than a YZ. That might tone down that “too excited” feel I don’t get along with. 

Yes I agree with that, once you get the power where you want it the Ktm smokers of that year were so light & IMO really predictable. I really miss mine lol 

I now have same chassis 450 & prob a little be quicker overall mainly down to roll on grunt advantage. But there aint much in it.

I’d love a 300sx also but worry about the well documented reliability concerns of the latest era 2 stroke. 

 

I've been reading about the reliability concerns of the TBI 2 Strokes the past few days. It's not a perfect situation, but they don't seem too horrible. It's probably too much for me, the whole point of a 2T is fun then simplicity, but I'm truly glad KTM is trying to innovate. I'll be a buyer in a couple years when they iron out the wrinkles 🤣 and things become reliable. I remember the early 350Fs were weird, but now they are amazing. I'm a big fan of air forks, although I do think they need more engineering development and know that KTM might be quietly moving back to springs. I've been supporting KTM recently by buying new 4T off road and street bikes, and will continue to do so even with the issues I have with them, hopefully it helps move things forward. Blue then Orange for me. 

I'm definitely going to get a YZ 2T next year. I'm set on blue, and I can't shake it. My last blue bike was 2017, and it's been way too long. I'm heavily leaning towards the 125, but the YZ 250 want is growing within me as a "forever" bike that I keep for 20 years. 

If your dead set on not buying a fi bike then beta would be my choice.  Cant see buying a non counter balanced and kick start bike in 2026.  Sorry yz heads.