Maintenance & Technical > KX500 Aluminum Frame Conversion (AFC)
2017 KX250F - 2004 KX250
umberto:
I made a couple of purchases for the conversion. I bought a 2001 CR 250 frame so I can recreate how Sandlbaster and Jason did their 2007 conversion. I paid $69 plus shipping for it.
I also found this later model KXF shock for the clevis so I can use my Stillwell re-valved shock. It's pretty blown up, so I only paid $29 plus shipping for it. It's hard to find just the clevis, so I was pleased to find this shock so cheaply.
Everything comes in next week, so I should be able to get started making some progress soon. Just about the time it gets stupid hot in Oklahoma.
umberto:
I ran into a little snag with the frames. The KXF frame has a slight taper after the straight section, while the CR frame is straight with no taper. The KXF frame starts at a 4 1/8" gap.
And increase to approximately 4 1/2" right before entering under the foot pegs:
Not too drastic, but still a concern. Luckily I managed to enlist an ally. My son and I took the welding class I took when I built Goliath, and my instructor agreed to help me with it. He's been working with aluminum for years, and didn't seemed fazed by the project at all. I get my frame on Monday, so things should start moving here pretty quickly.
FL_Sharpshooter:
--- Quote from: umberto on June 28, 2017, 02:32:10 PM ---I ran into a little snag with the frames. The KXF frame has a slight taper after the straight section, while the CR frame is straight with no taper. The KXF frame starts at a 4 1/8" gap.
And increase to approximately 4 1/2" right before entering under the foot pegs:
Not too drastic, but still a concern. Luckily I managed to enlist an ally. My son and I took the welding class I took when I built Goliath, and my instructor agreed to help me with it. He's been working with aluminum for years, and didn't seemed fazed by the project at all. I get my frame on Monday, so things should start moving here pretty quickly.
--- End quote ---
This should be interesting. I did notice that four stroke engines are usually less wide at the bottom, hence the taper. Almost every 2 stroke has straight rails.
umberto:
Looks like Photobucket declared war on me. They will allow me to host pictures for the low, low price of $399 per year. :-o
sandblaster:
You can post pics at KXguru.com and then link them here...
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