Another 250 vs 450 Thread

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3/20/2020 12:50 PM

I know there’s a lot of threads on this topic, but what the hell right? I’m getting back into motocross after a 12 year hiatus. I previously rode/raced for 12 years from 85s to 250Fs and ended as a fast novice in SoCal. I had a good amount of experience on 450s when I raced at 155lbs and rode a handful of times on a RMZ450 the past few years. I’ve decided I’m ditching the Harley and getting back to riding motocross. Really undecided on getting a 250 or 450 though. I’m 190lbs now and feel the 250 will become underpowered for me quick. I didn’t ride for 8 years and jumped on the RMZ450 and got comfortable pretty quickly the first day. On the other hand, I’m thinking about the 250 to really get my riding skills back with turning, riding aggressive, and using more of the bikes “potential” instead of lugging around the 450.

I know there will be comments on “get a 350” but I’ve decided it’s either going to be a 2020 KX250 or KX450. After watching all the reviews it looks like my weight won’t be a problem for the KX250 suspension and everyone liked the 450s smooth power. Plus, I can get the 250 for $5,500 or 450 for $7,000 brand new. Sounds a lot better then $9,800 for the 350 when I’m just getting started again.

I’ve always had good throttle control so part of me is saying just get the 450 that way I have a bike I can grow into and the other part is saying just get the 250 and ring it’s neck for the first couple of years. I like how I could put the black coupler in the 450 as well to make it more 350ish power with the ability to put the green coupler back in to wake it back up. 250 would cost a pretty penny in aftermarket parts to make it faster.

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3/20/2020 1:08 PM

You might want to consider a 250 2 stroke like a YZ, KTM or Husky 250.
You'll be able to wring its neck whenever you'd like, carry speed and momentum around the track. Its light nible and agile.
Also, the aftermarket hop up potential is there if you want it and $350 for a full exhaust. A port & polish job will be under $500 and if you ever blow it sky high, it wont cost you half the value of the a current 250f to rebuild.
The 250 smoker will only let you go as fast as your talent will let you go.
I know you didn't even mention it in your original post just above this but it's something to consider. Also, with the KTM and Husky, you can get a 300cc kit should you want more oomph.

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3/20/2020 1:11 PM

I struggled with the same problem recently and decided to get a 450. I was riding a friends 250f and while fun, I thought the extra maintenance of the 250 wasn't worth it.

Unless this is the last bike you'll ever buy, you really can't go wrong with either choice. In 1998, I came back to moto after a 8 year break and got a 125 to race in the vet class. While it was hard, it really helped my riding and when I did get a 250 2 stroke towards the end of 1998, I was instantly faster than almost everyone in my class because I had trained on the 125 for 6 months.

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3/20/2020 1:26 PM

Lightning78 wrote:

You might want to consider a 250 2 stroke like a YZ, KTM or Husky 250.
You'll be able to wring its neck whenever you'd like, carry speed and momentum around the track. Its light nible and agile.
Also, the aftermarket hop up potential is there if you want it and $350 for a full exhaust. A port & polish job will be under $500 and if you ever blow it sky high, it wont cost you half the value of the a current 250f to rebuild.
The 250 smoker will only let you go as fast as your talent will let you go.
I know you didn't even mention it in your original post just above this but it's something to consider. Also, with the KTM and Husky, you can get a 300cc kit should you want more oomph.

I considered a 250 two stroke but I like the 4 strokes better. I probably should have added that in my long ass post.

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3/20/2020 2:04 PM
Edited Date/Time: 3/20/2020 2:07 PM

If your just getting started I would say 250 if your dead set on a 4 stroke. If it was me I would get a used 125 or 250 2t to get back into the swing of things then get a 450. but if you and your wallet don’t mind the extra maintenance 250 4t all the way.

Edit: if your comfortable on the 450 get one.

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3/20/2020 2:56 PM

Where are you getting a 20 KX450 for 7000, OTD or pre dealer nonsense fees and tax that get you back to 9400OTD

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Never try to argue with idiots; they will only bring you down to their level.....and being more experienced, they will beat you at their own game!


2006 KX250

3/20/2020 3:01 PM

bvm111 wrote:

Where are you getting a 20 KX450 for 7000, OTD or pre dealer nonsense fees and tax that get you back to 9400OTD

My hookup $7950. 2020 kawy 450.

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3/20/2020 3:06 PM

Love my kx250F. Modern 250's are VERY good and much lighter. The current KX250F does everything well and is cheap. Next year may be an all new version, resulting in low prices this year.

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3/20/2020 3:13 PM

nascarnate326 wrote:

Love my kx250F. Modern 250's are VERY good and much lighter. The current KX250F does everything well and is cheap. Next year may be an all new version, resulting in low prices this year.

I think the 250 is awesome stock and with the money saved from the 450 you could have it dialed in for you and have new sets of rubber and fuel for the year basically.

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3/20/2020 3:20 PM

bvm111 wrote:

Where are you getting a 20 KX450 for 7000, OTD or pre dealer nonsense fees and tax that get you back to 9400OTD

mxb2 wrote:

My hookup $7950. 2020 kawy 450.

I want a hookup.... lucky!

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Never try to argue with idiots; they will only bring you down to their level.....and being more experienced, they will beat you at their own game!


2006 KX250

3/20/2020 3:35 PM

bvm111 wrote:

Where are you getting a 20 KX450 for 7000, OTD or pre dealer nonsense fees and tax that get you back to 9400OTD

mxb2 wrote:

My hookup $7950. 2020 kawy 450.

bvm111 wrote:

I want a hookup.... lucky!

East coast dealer,. Shipping probably $450

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3/20/2020 5:13 PM

I was faster on my 250SXF than I was on my 250SX, and faster still on my KX450 than my 250sxf. Recently rode a new YZ250 also... i wont be switching back to two-strokes anytime soon.

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3/20/2020 5:17 PM
Edited Date/Time: 3/20/2020 5:18 PM

I haven't rode a KX250f but I have a '19 yz250f and I weigh 225lbs. I came off an '18 crf450 and I am way faster on the 250, feel safer and I have zero intentions of going back to a 450.

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"Who cares about what other people think"

3/20/2020 5:25 PM

nascarnate326 wrote:

Love my kx250F. Modern 250's are VERY good and much lighter. The current KX250F does everything well and is cheap. Next year may be an all new version, resulting in low prices this year.

yz133rider wrote:

I think the 250 is awesome stock and with the money saved from the 450 you could have it dialed in for you and have new sets of rubber and fuel for the year basically.

Yeah, that’s what is intriguing about the 250. I’ll save $1500 over the 450 for a suspension revalve if I need it and gear or track admissions / gas lol.

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3/20/2020 5:30 PM

bvm111 wrote:

Where are you getting a 20 KX450 for 7000, OTD or pre dealer nonsense fees and tax that get you back to 9400OTD

mxb2 wrote:

My hookup $7950. 2020 kawy 450.

bvm111 wrote:

I want a hookup.... lucky!

A dealer here in WI has 2020 KX450s for $6999 (+ fees and tax) and 2020 KX250s for $4999 (+ fees and tax) Seems like good deals even if the fees are several hundred $$..

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3/20/2020 5:31 PM

mxb2 wrote:

My hookup $7950. 2020 kawy 450.

bvm111 wrote:

I want a hookup.... lucky!

Brad460 wrote:

A dealer here in WI has 2020 KX450s for $6999 (+ fees and tax) and 2020 KX250s for $4999 (+ fees and tax) Seems like good deals even if the fees are several hundred $$..

Hopefully that makes its way here to the west coast one of theses days!

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Never try to argue with idiots; they will only bring you down to their level.....and being more experienced, they will beat you at their own game!


2006 KX250

3/20/2020 5:32 PM

navalseabee wrote:

I was faster on my 250SXF than I was on my 250SX, and faster still on my KX450 than my 250sxf. Recently rode a new YZ250 also... i wont be switching back to two-strokes anytime soon.

Exactly, I’m the same way. I moved from 85s to 250Fs and skipped the 125 stage. I much prefer the 4 stroke characteristics and linear powerband, even the engine braking. I rode the KTM ride days a few times and didn’t like the 125 or 250 two strokes at all. The 250F and 450 was awesome though! Heavy engine braking and powerful motors. This was back in 2006-2008ish I believe so they could’ve changed the way the motors feel by now with the engine braking. Never got a chance to try the 350 though. Maybe I can when a ride day pops up and I’m at the tracks again!

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3/20/2020 5:35 PM

Myke wrote:

I haven't rode a KX250f but I have a '19 yz250f and I weigh 225lbs. I came off an '18 crf450 and I am way faster on the 250, feel safer and I have zero intentions of going back to a 450.

That’s kind of my thoughts about going with the 250. I’ll be able to ride it more aggressively instead of staying in 2nd-3rd the whole time on the 450 and lugging it around corners, using the power to get me up to speed. Nice to see some other heavier riders preferring the 250 still.

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3/20/2020 5:39 PM

bvm111 wrote:

Where are you getting a 20 KX450 for 7000, OTD or pre dealer nonsense fees and tax that get you back to 9400OTD

Haha yeah those damn fees. But the 350SXF will have those fees as well brining it close to 11k. Langston motorsports has those deals right now and I’m sure it’ll get lower pretty soon with the 2021s coming out in a few months.

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3/20/2020 6:53 PM

I’ll be that guy anyways.


Get a 350.

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3/20/2020 7:32 PM

bvm111 wrote:

Where are you getting a 20 KX450 for 7000, OTD or pre dealer nonsense fees and tax that get you back to 9400OTD

c91 wrote:

Haha yeah those damn fees. But the 350SXF will have those fees as well brining it close to 11k. Langston motorsports has those deals right now and I’m sure it’ll get lower pretty soon with the 2021s coming out in a few months.

That is true! I am a Kawi kinda guy and keep trying to talk myself into getting a FC350 just to try it out, but I have a feeling I will just be back on the KX450 so lay as well just get a 450!

With everything going on if I can get a new bike and maybe a new truck for cheap or 0% APR maybe there will be a silver lining to this nonsense after all! 😏

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Never try to argue with idiots; they will only bring you down to their level.....and being more experienced, they will beat you at their own game!


2006 KX250

3/20/2020 7:47 PM

190#? 450.

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3/21/2020 4:18 AM

nascarnate326 wrote:

Love my kx250F. Modern 250's are VERY good and much lighter. The current KX250F does everything well and is cheap. Next year may be an all new version, resulting in low prices this year.

yz133rider wrote:

I think the 250 is awesome stock and with the money saved from the 450 you could have it dialed in for you and have new sets of rubber and fuel for the year basically.

c91 wrote:

Yeah, that’s what is intriguing about the 250. I’ll save $1500 over the 450 for a suspension revalve if I need it and gear or track admissions / gas lol.

I traded my 17 CRF450 for this 18 KX250F and it was the best move ever. Im faster, can ride harder, longer, and more confident on the smaller bike. Im wayyyyy tooo big for a 250F but with the white coupler, VPU4.4 and a pipe its plenty fast enough for me. E Start would be nice but I am a weekend vet rider and have been kicking for decades, few more wont hurt me. See if you can find a KX or YZ250F to spin a few laps on.

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3/21/2020 5:39 AM

With the power 250’s make these days they’re a better bike for mx than the 450. Lighter, less tiring and more than enough power.


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3/21/2020 6:04 AM

It all depends on the type of rider you are. If you like to move around a lot and 'style' your way around a track, then a 250F is the better choice, whereas if you tend to be 'still' when you ride and just point-and-shoot a bike from corner to corner, then the 450 would likely suit you better. I'm old and I weigh more than I'd like, but nevertheless I tend to ride any and all bikes like they're 125s. Thus, every time I've ridden a 450, I couldn't wait to get back off and hand it back to the guy who let me ride it.

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3/21/2020 6:11 AM

bvm111 wrote:

Where are you getting a 20 KX450 for 7000, OTD or pre dealer nonsense fees and tax that get you back to 9400OTD

Actually 6999 now. Was 7500 a couple months ago when we bought ours.

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3/21/2020 6:53 AM

250. Hopping on the 450 right away will give you bad habits in my opinion. Ride a 250 for a couple of years then move up.

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3/21/2020 8:07 AM

250 is enough for the best in the world, let alone us mortals.

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3/21/2020 9:11 AM

nascarnate326 wrote:

Love my kx250F. Modern 250's are VERY good and much lighter. The current KX250F does everything well and is cheap. Next year may be an all new version, resulting in low prices this year.

yz133rider wrote:

I think the 250 is awesome stock and with the money saved from the 450 you could have it dialed in for you and have new sets of rubber and fuel for the year basically.

c91 wrote:

Yeah, that’s what is intriguing about the 250. I’ll save $1500 over the 450 for a suspension revalve if I need it and gear or track admissions / gas lol.

All that gets negated with extra maintenance involved

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3/21/2020 9:12 AM

OP, how long ago were you riding Novice and who did you race with?

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

80% of the time it works every time
IG @hamdaddyof2 & @2HRacing
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