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6/29/2014
Location
Temecula, CA
US
Edited Date/Time
4/6/2015 4:28pm
Hey guys I was wondering if any of you out there have a new 250f and also ride a vintage 250 2 stroke, like a 78-80 CR250 or similar.
Was curious how the power of the new bikes would compare. On paper a 2 stroke of the same displacement should have more power, but with 35 years of progress how close are the new 4strokes to the power of the old air-cooled 2 strokes??
Was curious how the power of the new bikes would compare. On paper a 2 stroke of the same displacement should have more power, but with 35 years of progress how close are the new 4strokes to the power of the old air-cooled 2 strokes??
And I don't own a 4-stroke btw.
About 2 months ago I rode an 81 YZ250, and a 03 KX250. Seemed to be plenty of power for me. I currently have a '12 KTm EXC500 which i ride moto, and that thing just wears me out too quickly. (I'm 55 yrs old/205 lbs., but in decent shape)
So I'm thinking a smaller bike - not a new 450 - would be the way to go. Was debating between a 250 SXF or 350 SXF. I was a little concerned the 250 might be underpowered for me, but if it's more powerful than the older 2t 250's it should be OK for me. Maybe put a big bore kit on it. 350 prob wouldn't be bad either - might just be a little more tiring to ride - but still not as bad as a 450.
The Shop
http://motocrossactionmag.com/news/2014-test-ride-ktm-300sx-two-stroke-…
YZ also has 10 more horsepower
http://motocrossactionmag.com/bike-tests/you-asked-for-it-motocross-act…
During the early 80s was some of the most tech advancements still being used today.
Disc brakes, power valves, and the 1982 Full Floater rear suspension was as good as anything today. Just a bit heavy.
It was a big deal when the then new '88 CR250 dynoed 38 hp, well above contemporary 250T numbers. Well below a modern 250F however.
OP, you sound like a great candidate for the new improved 2016 350F. Good luck!
Pit Row
So it's boiling down to a 2016 KTM 250F or 350F.
The 350 will no doubt be better than a 450, but still might be a little more than I want. Another real big factor is that MXA says the 16 350's will NOT have the upgraded smaller/lighter motors like the 250/450's will have. So with those factors. I'm leaning towards the 2016 250 with a big bore kit.
It sounds like from what most of you are saying that I should be happy with that
Thanks guys
https://youtu.be/IlsezjSlb5A
The Yam 25-FX sounds cool, but not set up for MX, which will be the sole use of my bike. The Yam sounds heavy too, compared to the 2016 250 SXF (221 lbs)
Now if KTM comes out with a 250SX (2t) for 2016 that has FI and electric start, that could throw a monkey wrench in there and add one more option. A new electric start 250 2t with maybe 9oz. Flywheel weight to smooth out the power might be pretty awesome.
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