Comments on: Chris Birch on Two Stroke KTM 300 Finishes First in Roof of Africa Enduro http://twostrokemotocross.com/2009/12/chris-birch-on-two-stroke-ktm-300-finishes-first-in-roof-of-africa-enduro/ The source for two stroke News, Tech and Tips. Thu, 02 Sep 2010 15:34:43 -0400 http://wordpress.org/?v=2.9.2 hourly 1 By: JustEnduro http://twostrokemotocross.com/2009/12/chris-birch-on-two-stroke-ktm-300-finishes-first-in-roof-of-africa-enduro/comment-page-1/#comment-646 JustEnduro Thu, 03 Dec 2009 23:59:17 +0000 http://twostrokemotocross.com/?p=2263#comment-646 I would be very keen to see how Chris_Germany rates the bike!!! So please let us know how you went with the test ride on the 300exc!!!!!!! The 2010 300exc and the 530exc produce very similar numbers on a dyno. In fact the same - The only major difference between the bikes is weight and the amount of throttle control required to make it work for you. Having done the Roof your throttle control should be good and make for a easy transition to get to grips with. Ahhhh and that free wheeling roll down hills and into corners may take a bit of getting used to. Well done having competed in the event, it is a tough one! I would be very keen to see how Chris_Germany rates the bike!!!

So please let us know how you went with the test ride on the 300exc!!!!!!!

The 2010 300exc and the 530exc produce very similar numbers on a dyno. In fact the same – The only major difference between the bikes is weight and the amount of throttle control required to make it work for you. Having done the Roof your throttle control should be good and make for a easy transition to get to grips with. Ahhhh and that free wheeling roll down hills and into corners may take a bit of getting used to.

Well done having competed in the event, it is a tough one!

]]> By: Chris_Germany http://twostrokemotocross.com/2009/12/chris-birch-on-two-stroke-ktm-300-finishes-first-in-roof-of-africa-enduro/comment-page-1/#comment-645 Chris_Germany Thu, 03 Dec 2009 13:25:18 +0000 http://twostrokemotocross.com/?p=2263#comment-645 I did the Roof this year on a KTM 520. Nearly impossible to ride. So, after 25 Years of 4-stroke riding, I will make a testride on that 300 2-Stroke. Maybe I have to change. I wonder about the torque delivery of that thing. See you next year back in Maseru, Chris I did the Roof this year on a KTM 520. Nearly impossible to ride. So, after 25 Years of 4-stroke riding, I will make a testride on that 300 2-Stroke. Maybe I have to change. I wonder about the torque delivery of that thing. See you next year back in Maseru, Chris

]]> By: sdcaro http://twostrokemotocross.com/2009/12/chris-birch-on-two-stroke-ktm-300-finishes-first-in-roof-of-africa-enduro/comment-page-1/#comment-640 sdcaro Wed, 02 Dec 2009 05:41:48 +0000 http://twostrokemotocross.com/?p=2263#comment-640 I agree with Chris2T. I recently caught the end of an endurocross on VERSUS TV. Even though he eventually won the final, Ricky Dietrich stalled in his heat race on his Kawi 450F. Before the camera cut away, I counted at least 15 kicks as he tried to get that thing going again. In contrast, Taddy Blazusiak needed one kick to get going again on his 2T. I agree with Chris2T. I recently caught the end of an endurocross on VERSUS TV. Even though he eventually won the final, Ricky Dietrich stalled in his heat race on his Kawi 450F. Before the camera cut away, I counted at least 15 kicks as he tried to get that thing going again.

In contrast, Taddy Blazusiak needed one kick to get going again on his 2T.

]]> By: Chris2T http://twostrokemotocross.com/2009/12/chris-birch-on-two-stroke-ktm-300-finishes-first-in-roof-of-africa-enduro/comment-page-1/#comment-639 Chris2T Wed, 02 Dec 2009 04:18:47 +0000 http://twostrokemotocross.com/?p=2263#comment-639 I hate to pile onto the anti-4stroke sentiment, because they are marvelous machines in their own right. But get a load of this quote taken directly from the January 2010 Cycle World's test of the new YZ450F: "But despite all performance advantage of EFI, this particular system has one drawback: starting. The engine must complete two revolutions before firing, and that demands a strict starting procedure: Use the kick lever to move the piston to TDC on the compression stroke, return the lever to the very top of its travel, then kick through. This is a lot easier than it was in previous years when hot-start buttons and decompression levers were required; but if the engine stalls in the heat of competition, following this procedure will be a mental challenge for a lot of riders. When the starting drill was done properly, our test bike fired on the first or second try; when it wasn't, the engine usually failed to start." Considering this is a 2010 machine, it's simply shameful, in my opinion. I hate to pile onto the anti-4stroke sentiment, because they are marvelous machines in their own right. But get a load of this quote taken directly from the January 2010 Cycle World’s test of the new YZ450F:

“But despite all performance advantage of EFI, this particular system has one drawback: starting. The engine must complete two revolutions before firing, and that demands a strict starting procedure: Use the kick lever to move the piston to TDC on the compression stroke, return the lever to the very top of its travel, then kick through. This is a lot easier than it was in previous years when hot-start buttons and decompression levers were required; but if the engine stalls in the heat of competition, following this procedure will be a mental challenge for a lot of riders. When the starting drill was done properly, our test bike fired on the first or second try; when it wasn’t, the engine usually failed to start.”

Considering this is a 2010 machine, it’s simply shameful, in my opinion.

]]> By: JustEnduro http://twostrokemotocross.com/2009/12/chris-birch-on-two-stroke-ktm-300-finishes-first-in-roof-of-africa-enduro/comment-page-1/#comment-638 JustEnduro Wed, 02 Dec 2009 04:03:10 +0000 http://twostrokemotocross.com/?p=2263#comment-638 2009 Baboons Roof of Africa Overall Results 1. Chris Birch (KTM) NZ KTM300 XC-w 2. Rory Mead (Yam) NZ Yamaha YZ250 3. Jade Gutzeit (BMW) SA BMW GS450(The one and only as far as I know) 4. Darryl Curtis (KTM) SA KTM250xc 5. Calvin Wright (KTM) SA KTM 2 stroke (Not sure which one) 6. Kenneth Gilbert (Yam) SA YZ250 7. Shannon Frost (Yam) SA YZ250 8. William Gillitt (Yam) SA YZ125 9. Mike Morris (KTM) SA KTM300xc 10. Marc Torlage (Yam) SA YZ250 There were 4 strokes, they however did not place equally well. Almost all the pros were seated on a smoker! The spread of brands 10x BMW 4x Gas gas 13x Honda 1x Husaberg 3x Husky 9x Kawasaki 63x Ktm 2x Tm 39x Yamaha 5x Not listed. I'd say the KTM and Yamaha pits were a bit crowded 2009 Baboons Roof of Africa
Overall Results
1. Chris Birch (KTM) NZ KTM300 XC-w
2. Rory Mead (Yam) NZ Yamaha YZ250
3. Jade Gutzeit (BMW) SA BMW GS450(The one and only as far as I know)
4. Darryl Curtis (KTM) SA KTM250xc
5. Calvin Wright (KTM) SA KTM 2 stroke (Not sure which one)
6. Kenneth Gilbert (Yam) SA YZ250
7. Shannon Frost (Yam) SA YZ250
8. William Gillitt (Yam) SA YZ125
9. Mike Morris (KTM) SA KTM300xc
10. Marc Torlage (Yam) SA YZ250

There were 4 strokes, they however did not place equally well.
Almost all the pros were seated on a smoker!

The spread of brands
10x BMW
4x Gas gas
13x Honda
1x Husaberg
3x Husky
9x Kawasaki
63x Ktm
2x Tm
39x Yamaha
5x Not listed.

I’d say the KTM and Yamaha pits were a bit crowded

]]> By: JustEnduro http://twostrokemotocross.com/2009/12/chris-birch-on-two-stroke-ktm-300-finishes-first-in-roof-of-africa-enduro/comment-page-1/#comment-637 JustEnduro Wed, 02 Dec 2009 00:55:08 +0000 http://twostrokemotocross.com/?p=2263#comment-637 This article is great. However, why is this a surprise? ALL THE HARD Enduro's are won on 2 stroke almost exclusively!!!! Lastman Standing Erzberg Redbull Romaniacs Tough One The Roof Gilles Lalay This is the world of Torque, HP, weight and a bit of madness = 2 stroke. They rule ALL of these events ALL of the time! The top 10 will be 90% 2 stroke in ALL of these events. (Surprised if there is a 4 stroker there at all!!) Here is a interesting link for a 300exc http://www.youtube.com/watch?v=mfJL0jX-drE Don’t believe it, then try this one direct from KTM http://www.ktm.com/Bike-Detail.100284.0.html?bike=112&cHash=0a3e858f3b 105kg Here is the 2010 530 4 dope direct from KTM http://www.ktm.com/Bike-Detail.100284.0.html?bike=113&cHash=1392305021 112kg This article is great.
However, why is this a surprise? ALL THE HARD Enduro’s are won on 2 stroke almost exclusively!!!!
Lastman Standing
Erzberg
Redbull Romaniacs
Tough One
The Roof
Gilles Lalay

This is the world of Torque, HP, weight and a bit of madness = 2 stroke.
They rule ALL of these events ALL of the time!
The top 10 will be 90% 2 stroke in ALL of these events. (Surprised if there is a 4 stroker there at all!!)

Here is a interesting link for a 300exc
http://www.youtube.com/watch?v=mfJL0jX-drE

Don’t believe it, then try this one direct from KTM
http://www.ktm.com/Bike-Detail.100284.0.html?bike=112&cHash=0a3e858f3b
105kg

Here is the 2010 530 4 dope direct from KTM
http://www.ktm.com/Bike-Detail.100284.0.html?bike=113&cHash=1392305021
112kg

]]> By: 2STROKEREVOLUTION http://twostrokemotocross.com/2009/12/chris-birch-on-two-stroke-ktm-300-finishes-first-in-roof-of-africa-enduro/comment-page-1/#comment-636 2STROKEREVOLUTION Wed, 02 Dec 2009 00:33:05 +0000 http://twostrokemotocross.com/?p=2263#comment-636 Just rode my 2000 KTM 380SX and it is ballsy! This thing ways 20lbs less than a 450F and makes 10-15hp more. It is SICK. We geared it up twice and it still pulls wheelies in every gear. Just rode my 2000 KTM 380SX and it is ballsy! This thing ways 20lbs less than a 450F and makes 10-15hp more. It is SICK. We geared it up twice and it still pulls wheelies in every gear.

]]> By: motoman465 http://twostrokemotocross.com/2009/12/chris-birch-on-two-stroke-ktm-300-finishes-first-in-roof-of-africa-enduro/comment-page-1/#comment-635 motoman465 Tue, 01 Dec 2009 20:45:42 +0000 http://twostrokemotocross.com/?p=2263#comment-635 Congratulations to Chris and everybody that entered this race. I had seen highlights of this race on TV a few years ago. It is unbelievable! Congratulations to Chris and everybody that entered this race. I had seen highlights of this race on TV a few years ago. It is unbelievable!

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