Back to motocross; 150, 250 or 250f?

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11/23/2018 5:46 AM

Little background; have been riding since i was 11 years old and rode 80’s, 125’s and 250 2 strokes all my life (2003 YZ250 was my last motocross bike). After 6-7 years of not riding (university etc) I got back to riding offroad/enduro, bought a new KTM EXC300.

Great bike but it could be lighter/easyer to ride on the motocross track (real issue is that i'm not riding enough wink ) Since I’m living in the Netherlands I mainly ride (very) sandy tracks. That was also my reason to step to a 250 2 stroke back in 2004. I’m small (5,8) and light at around 135 pounds, so weight is an important factor.

Now I’m thinking about buying a (slightly used) motocross bike next to my EXC300, but I don’t have much experience on 4 strokes. Absolutely hated a CRF450 back in 2004, but that bike was setup for someone tall and heavy, was very aggressive from down low.

I have 3 possible options within the KTM range (other brands are an option, but I have a dealer nearby, also good available in the used market): SX150, SX250 or a SX250F. I’m about fun factor and ride ability, will not be doing any racing on them.
SX150: Pro: very light
Con: but keeping it on the pipe is hard work (especially on sand tracks)
SX250: Pro: light, powerfull
Con: hard hitting makes the bike exhausting
SX250F Pro: powerband, more controllable power makes the bike easyer/longer to ride
Con: heaviest, maintenance (alto I’m able to do this myself)

SX250 would be the smartest choice of these 3, but I always read about the fact how easy the 250F’s are to ride. Would the 250F be a better (more easy to ride) choice making my motocross track experience better?. Additional maintenance cost are not a real issue, i will not be riding more than 30 hours a year.

What bike should i buy?

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mixing gas and haulin ass

11/23/2018 6:05 AM

I Had to Make that same choice after. Not Riding for a long period of Time i chose a Honda CR125

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11/23/2018 6:10 AM

Seems like you did your research... pick the one you want to ride.

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11/23/2018 6:23 AM

With deep sand id say 350 or 250 2 stroke not 250f

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11/23/2018 6:30 AM
Edited Date/Time: 11/23/2018 6:38 AM

kb228 wrote:

Seems like you did your research... pick the one you want to ride.

Thats the issue; when I look from my own experience i would go 250 2 stroke, but that is largely the same bike i'm already having (suspension from the exc is different and i have lights and an electrical starter). I think that I would be pretty happy with an SX250, but if the SX250F is really an easyer bike to ride it could be a good option.
The EXC does pretty good on the MX track, but it would be better if it’s 10KG lighter (which the SX250 is). My suspension setup is pretty oke on the MX track, but not great for larger jumps.

350F is also an option,

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mixing gas and haulin ass

11/23/2018 6:38 AM

kb228 wrote:

Seems like you did your research... pick the one you want to ride.

Tortelli wrote:

Thats the issue; when I look from my own experience i would go 250 2 stroke, but that is largely the same bike i'm already having (suspension from the exc is different and i have lights and an electrical starter). I think that I would be pretty happy with an SX250, but if the SX250F is really an easyer bike to ride it could be a good option.
The EXC does pretty good on the MX track, but it would be better if it’s 10KG lighter (which the SX250 is). My suspension setup is pretty oke on the MX track, but not great for larger jumps.

350F is also an option,

Id Say there isnt a wrong choice , But if strictly for fun imo 2 stroke , if you care about lap times at all, and want to put down smooth fast laps , 250f

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11/23/2018 6:50 AM

250 2 stroke....

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vomiting equals disqualification.

11/23/2018 7:07 AM

135 pounds!?! Try a 150sx. You‘ll be surprised about the power and how light it is.

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11/23/2018 7:13 AM

Get a 250 2 stroke. I sold my 450 after years of doing A class and semi pro events, having the 2 stroke revitalised me and made me enjoy riding again... I had started to hate it. Low maintenance and just fun riding, if you don’t plan on lining up next to Tomac then why wouldn’t you get a 250T?

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11/23/2018 7:51 AM
Edited Date/Time: 11/23/2018 8:00 AM

Im only 135lbs as well and if your leaning towards a KTM 250 two stroke id say do it man. You will be surprised how easy it is to ride and the lack of fatigue it gives off compared to the older 50hp stock 2016 and older motors that vibrated like a clothes dryer with a brick inside laughing They dont need to be revved like the 150 or 250F and with the counter balanced motors from 2017 and newer the motors have little to no vibration with great usable power even if they did lose 1-1.5 hp to the old motor it makes up for it in usability and smooth power. Both of which from the sounds of it i think you'd appreciate. Oh and it does have about 4hp over a 250f if that means anything to you as well

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11/23/2018 9:25 AM

Since you're riding a 300 2 stroke now, I'd think that the 150 or 250F would feel a bit disappointing as far as power.

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Current rides: 2016 KTM 250SXF, 2017 KTM 350SXF

11/23/2018 9:38 AM

kb228 wrote:

Seems like you did your research... pick the one you want to ride.

Tortelli wrote:

Thats the issue; when I look from my own experience i would go 250 2 stroke, but that is largely the same bike i'm already having (suspension from the exc is different and i have lights and an electrical starter). I think that I would be pretty happy with an SX250, but if the SX250F is really an easyer bike to ride it could be a good option.
The EXC does pretty good on the MX track, but it would be better if it’s 10KG lighter (which the SX250 is). My suspension setup is pretty oke on the MX track, but not great for larger jumps.

350F is also an option,

Tarz483 wrote:

Id Say there isnt a wrong choice , But if strictly for fun imo 2 stroke , if you care about lap times at all, and want to put down smooth fast laps , 250f

I dont think theres a wrong choice for fun factor at all. I could have just as much fun on a klx110 as i could on a 125 2 stroke or 450. If you like riding youll have a blast regardless of what youre on

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11/23/2018 9:40 AM

MPJC wrote:

Since you're riding a 300 2 stroke now, I'd think that the 150 or 250F would feel a bit disappointing as far as power.

It's not really about the peak numbers, that fact that a 125 doesnt have any power down low is the main issue. Only with (massive) clutch abuse it's doable on (beach like) sand tracks. If we had some harder tracks i would have never asked this question and would buy as 150 just for the fun factor.

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Have a 2014 EXC300 with about 60 hours on the clock, the vibration is the only real issue of this bike (road legal btw!). Currently riding every weekend, so i'm pretty used to it, but when you havent ridden for a couple of months..... the vibration will kill you wink.

Grab a nice used SX250, 2017 or newer and maybe upgrade my EXC to a TPI bike sometime in 1 or 2 years could be a nice idea. Than the basic platform of both bikes is identical (except for the carb / tpi).

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mixing gas and haulin ass

11/23/2018 10:04 AM

You have a 300 XC so I would not get a 250 two stroke. I would get a 250F.

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11/23/2018 10:08 AM

250 smoker and adjust the powervalve to change the power delivery.

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2017 RMZ450
2005 YZ250-sold :,(
1998 YZ250
2005 KX250F

80% of the time it works every time
IG @2HRacing
Thanks to : Factory Effex, N2Dirt, Acerbis, DT1, Fasthouse, Matix, FMF, ASV, 100% & Mika Metals

11/23/2018 10:19 AM

MPJC wrote:

Since you're riding a 300 2 stroke now, I'd think that the 150 or 250F would feel a bit disappointing as far as power.

Tortelli wrote:

It's not really about the peak numbers, that fact that a 125 doesnt have any power down low is the main issue. Only with (massive) clutch abuse it's doable on (beach like) sand tracks. If we had some harder tracks i would have never asked this question and would buy as 150 just for the fun factor.

Photo
Have a 2014 EXC300 with about 60 hours on the clock, the vibration is the only real issue of this bike (road legal btw!). Currently riding every weekend, so i'm pretty used to it, but when you havent ridden for a couple of months..... the vibration will kill you wink.

Grab a nice used SX250, 2017 or newer and maybe upgrade my EXC to a TPI bike sometime in 1 or 2 years could be a nice idea. Than the basic platform of both bikes is identical (except for the carb / tpi).

The lack of vibration on the new 2 strokes with the counterbalancer is very nice. Hard to see how you could go wrong with a 250 sx. If you go 4 stroke, I'd highly recommend the 350.

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Current rides: 2016 KTM 250SXF, 2017 KTM 350SXF

2/2/2019 5:24 AM
Edited Date/Time: 2/2/2019 5:25 AM

Spoke with my wallet and picked up a nice and original 2018 SX150 (with only 34 hours on the clock). Now hoping for some better weather here in the Netherlands....

Little annoying is the fact that i need other airfilters for this bike....

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mixing gas and haulin ass

2/2/2019 9:33 AM

You already have the best bike. Now go do laps until you agree.

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