Guys I've just been fussing with a guy who says a 250r with a pipe and air filter has never lost to a four stroke. Now I can see him beating maybe the 400's, although not all modded 400's but he says he beats all raptors, ds's, cannondale's you know any four banger. Does the 250r, which I do think is a great quad, really make this much power to beat all these big bore thumpers in a drag? I don't think so myself but I need some backup. I've seen a pretty hopped up r get beat by a friends raptor numerous runs in a 100 foot, 300foot, and 100 yard drag.

 

On a track, for sure the 250R will win (past tense).
In a drag, against raptors and DS's, it will win some loose more.

Did you read the article on atvscene.com
Kory Eliss won the GNC Mt.Morris MX round 8.
He rode 2 heats on the new YFZ450 and got two 3rd places.
The engine was stock, and they used LSR +2 arms and axle, as well as PEP shocks.
In the the process he set the fastest lap times ever!!!!!!!
He then switched back to his CRF440 LSR race bike, managing to win 5-1 overall.

Point is "FASTEST LAP TIMES on the new450" in its first appearance!
250R domination is over. The 4 strokes are going to be more reliable and stronger.

Look at Moto GP
4 stroke technology is advancing and dominating. The gap has closed considerable over the last 3 years.
The 4 strokes are faster on the straights, where as the 2 strokes are quicker out of the corners. (Past tense)
I dont want to see 2 strokes dissapear, but 4 stroke technology is overtaking.

 

The 300 feet and the 100 yds are the same.

 

if you do not belave me mud slinger that is fine but i really have never been beatin by a 4-stroke,(and yes including ds650,raptors, and some with modds) (and i have never raced a cannondale)

Even my friends with R's where i race dont belave it when I show them the slip and it says 5.5-5.6, so i could understand you not beleaving me i guess.

 

It's unlikely that a 250R with just a pipe will out run a YFZ. I've ridden both.

 

In a drag, I have beaten several, not to say there are not some hellaciously fast Hondas out there.

On an mx track, I don't know, I only drag race.

Street

 

Yeah a good running piped R will outrun quite a few four strokes, but it can't outrun a piped banshee!!!!

 

The only way i can out run a shee is if the rider sucks. And if there pritty good were usuallly really close. Shees have more patential drag racing than an R, becuase theres just more to work with.

 

Well I know for a fact that JUST a piped 250r cant hang with a cannondale or 450 stock because my buddy has one..

 

That's cool but I didn't say I don't beleive you. I just had to see what others thought. Seems some guys kind of agree with you and some don't. That's about what I figured. I don't know how this led to me being kind of a 250r basher which I'm not. Oh well, we're all adults here and if your bike is this good my hats off to you. That's some really good numbers. The banshee man that said a 250r wouldn't touch his banshee, well of course a two stroke with 100 more cc's with a million aftermarket mods especially to make it go faster top end wise will beat an r. An r probably has equal amount of aftermarket parts but there to make it go faster on the track. I'm not an r hater but I just can't figure out why someone has never lost. It's kind of like pro fighting if you've never lost then you haven't really fought the good fighters yet.