Maintenance & Technical > KX500 Steel Frame Conversion (SFC)

kx250f frame

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91kawifive00:
whats going on guys. i came the the decision to pull the trigger and do the 250f/500 build.  i have a quick question which will decide how i go about the build. the bike will be mx'd most of the time. in my eyes the easyiest build ive seen would be to just cut the cradle and weld it to the new 250f frame. my concern is that i have read its front heavy and that scares the crap out of me lol. thats all i need is to hit a 90 foot double and nose it. i guess im just looking for some reasurence that the build is going to do well on the mx track. if not im just gonna keep the bike original like i have ben racing it. so any input from guys that have gone this route would be greatly appriciated. thanks fellas

jonny500:
if your going to use a steel frame kx250f why not use a 250 2t its much easier 99-02 works, i have 1. flyinhawian has done an 04 but you could use a much later chassis up to 08 kx250 2t. i have only done small jumps on my 99-02 but all seems ok. i have yet to have it over some biguns. but lets face it you got a hell of a lot of panic rev on a 500 to pull the front back up :evil:. good luck with what ever you decide

91kawifive00:

--- Quote from: jonny500 on October 19, 2011, 06:18:51 AM ---if your going to use a steel frame kx250f why not use a 250 2t its much easier 99-02 works, i have 1. flyinhawian has done an 04 but you could use a much later chassis up to 08 kx250 2t. i have only done small jumps on my 99-02 but all seems ok. i have yet to have it over some biguns. but lets face it you got a hell of a lot of panic rev on a 500 to pull the front back up :evil:. good luck with what ever you decide

--- End quote ---

good point. im willing to go either way. i just felt like there is more work with the 250ts conversion. the 250f seems like cut, weld, and your on your way and of course getting a pipe to fit.

jonny500:
take a look at my build thread http://www.kxriders.com/forums/index.php/topic,8032.0.html
imo the 99-02 250 2t is the easiest by far followed by the 04-08

The Flyin Hawaiian:
There is no major cutting of the frame with the steelies. Move the front motor mounts and on the 03/04s the head stay mount should be centered with the head for petcock clearance. Pretty easy and straight forward. Use a Service Honda pipe or a modded CR500 pipe.

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