Two Stroke Motocross

Two Stroke Motocross Forum => General Two Stroke Talk => Topic started by: JohnN on September 28, 2010, 01:14:14 PM

Title: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: JohnN on September 28, 2010, 01:14:14 PM
Just got my new Dirt Rider magazine (November 2010) which contains a fabulous comparison article between these two machines...

Get an issue or try to borrow a buddies...
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: Coop on September 28, 2010, 01:29:26 PM
Dang I let my subscription expire a couple months ago. I'll have to grab a copy next time I am out.
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: SwapperMX on September 29, 2010, 02:26:51 AM
Thanks for the heads up, will definitely have to buy that copy !!
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: burn1986 on September 29, 2010, 08:31:26 AM
Yeah, I did the online subscription and forwarded the summary page to Al Ludington. It turned out good. I think Subtexel and KTM150Rippa were involved in this test.
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: JohnN on September 29, 2010, 09:32:25 AM
Quote
I think Subtexel and KTM150Rippa were involved in this test.

You are correct... do you know if that one racer in the article was Subtexel's brother??
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: burn1986 on September 29, 2010, 09:55:43 AM
I believe it was - Danny Guillen.
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: Dirt Addict on September 29, 2010, 02:10:05 PM
i rode piru mx today. Karel Kramer (one of dirt riders' editors) was there.  he was riding a honda 450 but the kid with him was on the ktm 150.   ...#150, go figure.
the bike sounded sweet.
btw, i was riding an 06 ktm 125sx.  i just got it yesterday from a rich kid who hardly rode it at all. still on the oem tires!  i'm impressed with its power.  i had a 03 rm125, built in to a 144 by Eric Gorr.  this ktm 125 had more power, bottom to top.
i did manage to catch the 150's rear wheel and stayed on it till i got tired...
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: Chris2T on September 29, 2010, 06:16:27 PM
so i ran right out and bought the issue. Terrific test is right! they did a thorough comparo, using different tracks, riders, skill levels, the works. I think the 150 won but i'm biased (the pro's went fastest on the 150 so i'm happy) but regardless, the 150 did very, very well. What's amazing is that in this day and age, the supposedly antiquated 2 stroke can spot the 4 stroke $1,400 msrp and a 73% displacement advantage and STILL win!!! The way the article reads, it's so close between these two that i'd imagine the 250SX would absolutely annihilate the 250SX-F, which in my way of thinking would be the fair comparison, not this one.

They did make a big deal out of the 4 stroke's torque curve and i'll admit the dyno shows that its got several ft/lbs on the 150 until the higher revs. That translates into what all the riders said - that the 250SX-F is easier to ride out of corners. But again, it's got 73% more engine for fucks sake!

Now more than ever after reading this test, we need an apples-to-apples, mano-y-mano 2stroke versus 4 stroke comparo.
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: factoryX on September 29, 2010, 10:19:14 PM
 
That translates into what all the riders said - that the 250SX-F is easier to ride out of corners. But again, it's got 73% more engine for fucks sake!
LOL, I have been saying the same thing for years.
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: JohnN on September 30, 2010, 03:44:05 AM
Quote
Now more than ever after reading this test, we need an apples-to-apples, mano-y-mano 2stroke versus 4 stroke comparo.

You mean like this???

http://twostrokemotocross.com/2008/08/yz250-vs-yzf250-by-mxa/ (http://twostrokemotocross.com/2008/08/yz250-vs-yzf250-by-mxa/)

Although this test is from 2008, MXA recently updated it for 2010... but it was basically the same exact test.. look it up on their site!
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: SubTexel on September 30, 2010, 08:54:36 AM
I believe it was - Danny Guillen.

That is correct. :)

Picture of him is one I took as well, so my photography was kind of published :p He's also in another pic racing against Pete Peterson.
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: burn1986 on September 30, 2010, 10:07:02 AM
Glad for him. Definite success. Something to pad the resume with for sure.
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: SubTexel on September 30, 2010, 10:10:44 AM
Glad for him. Definite success. Something to pad the resume with for sure.

For sure man, thanks again for setting this all up :)

That 150SX was spanking the 250F int the hands of the pros... Fun as heck to watch.
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: burn1986 on September 30, 2010, 10:49:44 AM
Kind of funny actually, I'm sure this is why the AMA is a little reluctant to approve the rule change.
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: SubTexel on September 30, 2010, 12:47:38 PM
Kind of funny actually, I'm sure this is why the AMA is a little reluctant to approve the rule change.

Only one of the PRO test riders (FMF guy long hair don't remember his name) disliked the 150SX, then again he got spanked on during both timed runs on each bike (and spanked hard). Most others loved it, the novices (Pete Peterson, my little brother and some other kid) leaned towards the 4 stroke @ 395 but loved the 150SX @ Piru.

Honestly, the 150SX is geared more towards advanced / pro riders, and it showed during the testing (they absolutely railed on it).
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: ktm150rippa on September 30, 2010, 03:28:47 PM
I honestly think ppl have just forgotten how to be in the powerband. I'm a novice rider and really try to be unbias when I ride the f and the sx but I just cant turn that four stroke. I'm the kind of two stroke rider that cuts off lines and exits early so whenever I ride the f I just feel like I cant turn the dam thing. Then the engine brake thing really f's me up no pun intended. Overall I'm two to three seconds faster on the 150 than the F with that said if the day ever comes that two strokes arent a part of motocross is the day I quit motocross!
Title: Re: Dirt Rider Test of KTM150 two-stroke vs. KTM250SXF
Post by: JohnN on October 01, 2010, 11:47:47 AM
Since so many pros have been riding the four-strokes, they are used to them and don't have the timing right for the two-stroke. It was the same when they were all on two-strokes... it took a little while to get used to racing the F at speed.

I forgot to include the proper link in my reply above...

http://twostrokemotocross.com/2008/08/yz250-vs-yzf250-by-mxa/ (http://twostrokemotocross.com/2008/08/yz250-vs-yzf250-by-mxa/)