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Factory KTM 450 SX-F

JoeUSA

JoeUSA

Joined Jun 2001
1K Posts | 0+
Pasadena Ca.
There haev been hints about this project, now it has been officially reported in Dirt Bike magazine of all places.

59 HP, Electirc start and only 100 kg

Here is the 2 page article..

Maybe there is hope for Husaberg also?

Regards,

Joe
 

Attachments

  • Factory KTM 450 SX-F.pdf
    1.8 MB
Hi Joe,
Did you take note of the Bore and Stroke? ( 97 x 60.8 )
Indeed, near identical to that of my 444 of 2001.

Why not a 100 mm bore like the Husaberg 450? :lol: LOL

Dt_444.jpg

2001 Lineaweaver / Husaberg 444

Perhaps early Husaberg Dirttrack testing helped shape the modern KTM?
Nah, I am certain such is simply coincidence. :roll:

Dale
 
They do have a 100mm bore version that they are calling a 505, when in reality it is really only 470cc, I believe.
 
Brendan said:
They do have a 100mm bore version that they are calling a 505, when in reality it is really only 470cc, I believe.
Click to expand...

If I had a dollar for every 470 I converted to a 97 mm bore 450.......
Well, I would have five dollars. :D

Dale
 
LINEAWEAVER said:
Hi Joe,
Did you take note of the Bore and Stroke? ( 97 x 60.8 )
Indeed, near identical to that of my 444 of 2001.

Why not a 100 mm bore like the Husaberg 450? :lol: LOL

Dt_444.jpg

2001 Lineaweaver / Husaberg 444

Perhaps early Husaberg Dirttrack testing helped shape the modern KTM?
Nah, I am certain such is simply coincidence. :roll:

Dale
Click to expand...

Hi Dale,

Yes I did note the bore/stroke ratio, the first thing I did when I turned to the article.

We don't know what the curves look like, but for the same size valves, I bet they could have gone to 95mm bore and 63.3 stroke, which I bet is close to what the ORIGINAL Husaberg 450 prototype engine was that is rumored was so hot that it got killed by big bro.

I can hardly wait to see the specs on the production KTM.

I am a retired Aerospace Engineer, and regret not pursuing my true love, engines.

Regards,

Joe
 
Hi Joe,
Truth be told the 97 mm bore makes very good use of 37 mm inlet valves. (ie no bore shrouding)

Hope you are doing well.

Sincerely,
Dale
 

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