worlds fastest dirt bike

[bigbellybob]

its funny that a modern 500 could never out do the old 1981 ktm 495. i think im going to add one to my bucket list
http://dirtbike.off-road.com/dirtbike/Reviews+Vehicles%3A+KTM/Vintage-The-Fastest-Stock-Dirtbike-Ever-Built/ArticleStandard/Article/detail/523565?contextCategoryId=46436=

[BDI]

123 mph I will beat that sitting upright.

[bigbellybob]

 BDI we have talked about going to the lakes and bringing a box of gears, i think if we get a cool night we should do just that, i know I'm breaking 100, but by? the kx5 should smoke that 123mph with taller 5th, super small rear, and big a$$ counter

[KX500freak]

got to keep us informed when this attempt becomes reality..
maybe a gps speedometer for exact speed is an option.

i,m curious what a single cyl.500cc is capabel of ,
we had disccusions about them not going faster then 130 mph.
due to the big piston and the top rpm it can handle

[The Flyin Hawaiian]

A few years ago, one of the mags did a top speed shootout with a KX500, XR650R, and a KTM 525. I think the XR was the fastest. I think the Honda guys were stripping things off of it to get it to be more aerodynamic. Ill have to dig that test up.

[bigbellybob]

A few years ago, one of the mags did a top speed shootout with a KX500, XR650R, and a KTM 525. I think the XR was the fastest. I think the Honda guys were stripping things off of it to get it to be more aerodynamic. Ill have to dig that test up.

i think i remember that, didn't they take the front brake off too. and i remember a discussion somewhere about the aerodynamics of the water cooled bikes having more drag because of the rads and shrouds. the old air cooled bikes had better aeros

[BDI]

That maybe the shootout that Jeff Price was involved with.

[BDI]

BDI we have talked about going to the lakes and bringing a box of gears, i think if we get a cool night we should do just that, i know I'm breaking 100, but by? the kx5 should smoke that 123mph with taller 5th, super small rear, and big a$$ counter

 
  BBB I'm all about it. I say we gear them until they slow back down or death shake, what ever comes first.

[MadKaw]

be sure you drop the suspension down to the ground...think low and long. no knobbies either.

[stewart]

its funny that a modern 500 could never out do the old 1981 ktm 495. i think im going to add one to my bucket list
http://dirtbike.off-road.com/dirtbike/Reviews+Vehicles%3A+KTM/Vintage-The-Fastest-Stock-Dirtbike-Ever-Built/ArticleStandard/Article/detail/523565?contextCategoryId=46436=

not any more