litefoot
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Yes, but aren't those 450cc 4-strokes competing againt 250cc 2-smokers??
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- Thread starter pelhamjeff
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Yes, but aren't those 450cc 4-strokes competing againt 250cc 2-smokers??
Shoot i don't know, All i know is every time i watch a race a 450cc 4 stroke wins it. You may be right. If so that would be a big advantage.
GASoline71
Mr. Nice Guy
Not a single pro motocross rider rides a 2 stroke anymore. The 250cc class and 125cc class are now called Supercross/Motocross (old 250cc class) and Supercross/Motocross Lites (old 125cc class).
The big class is all 450cc 4 strokes, and the Lites class is all 250cc 4 strokes. Now Suzuki and Kawi have fuel injected 4 stroke motocross bikes. The 2 strokes just ca't compete with the big 4 strokes.
The only drawback to fuel injection I see is an onboard computer... which will be costly as in more $$$. But in the long run is more efficent.
Gary
The big class is all 450cc 4 strokes, and the Lites class is all 250cc 4 strokes. Now Suzuki and Kawi have fuel injected 4 stroke motocross bikes. The 2 strokes just ca't compete with the big 4 strokes.
The only drawback to fuel injection I see is an onboard computer... which will be costly as in more $$$. But in the long run is more efficent.
Gary
Thanks, Did not know the 250 class were fours now.Not a single pro motocross rider rides a 2 stroke anymore. The 250cc class and 125cc class are now called Supercross/Motocross (old 250cc class) and Supercross/Motocross Lites (old 125cc class).
The big class is all 450cc 4 strokes, and the Lites class is all 250cc 4 strokes. Now Suzuki and Kawi have fuel injected 4 stroke motocross bikes. The 2 strokes just ca't compete with the big 4 strokes.
The only drawback to fuel injection I see is an onboard computer... which will be costly as in more $$$. But in the long run is more efficent.
Gary
GASoline71
Mr. Nice Guy
and before anybody wonders... the old 125cc class was limited to any bikes from 120cc to 249cc... 2 or 4 stroke. The 250cc class was any bike from 250cc to 450cc... 2 or 4 stroke. Anything 451 or larger (2 or 4 stroke) was considered "open class". So the 450's and 250's of today were always legal in their respective classes. It's just when a few guys started winning with them... everybody went to them
Remeber the 500cc Supercross/Motocross races? Good times...
gary
Remeber the 500cc Supercross/Motocross races? Good times...
gary
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I remember the old husqvarna and penton two strokes. I had a suzuki RM-250 many moons ago. It was a screamer. i also remember CZs, Sachs, Maico, what i would give to have some of them old bikes now.
fredmc
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Bultaco !!!!!
Yep, Sherpa T was a nice one.
litefoot
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My bruv rides MX. He stuck with 2 strokes while everyone else had thumpers, but when he changed, said he`d never go back. The excitment of that powerband hit is gone but the power is more usable and lap times are much faster.
On a four stroke dirt bike with fuel injection, is there a feedback system?
fredmc
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I agree, thumpers create a different power band than a two stroke. Although, to get the same H.P. numbers you need twice the displacement in a four stroke. Also a four stroke has twice as many moving parts. For the freakin sake of chainsaws, lets keep em two stroke eh?
Just because you are paranoid, it doesn't mean they aren't out to get you.
Oh my God, that is sick looking! What are those, solar panels? :jawdrop:
CentaurG2
Addicted to ArboristSite
I have always wanted a Suzuki TC250 X-6 scrambler. Just never got around to getting one.
Yup, weight and rebuilds, noooo ta. Take all the fun out of it.
If ya'll weren't such a bunch of #####s you would just use a cross cut.
Is there a feedback system on a four stroke dirt bike?and before anybody wonders... the old 12cc class was limited to any bikes from 120cc to 249cc... 2 or 4 stroke. The 250cc class was any bike from 250cc to 450cc... 2 or 4 stroke. Anything 451 or larger (2 or 4 stroke) was considered "open class". So the 450's and 250's of today were always legal in their respective classes. It's just when a few guys started winning with them... everybody went to them
Remeber the 500cc Supercross/Motocross races? Good times...
gary
