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Has anyone put a YZ85 motor in a YZ125 frame?

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I have a project in mind and just wondering if anyone has ever done this? Would probably be using a brand new or near-new YZ85 motor and a steel YZ125 frame (96-04).

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I've never seen it done. Why would you want to? You could always detune a 125

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I'm toying with the idea of building a bike to go land speed racing in the 100cc class. I'd use a big bore 85. Of course, I'd like to ride it, but I'm 6'2" and pretty folded up on an 85 frame when in a tuck. The 125 frame would fit me better and after it's lowered, I don't think it would have a significantly greater frontal area.

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Have you tried a supermini? Theyve got larger wheels and longer swingarm.

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what if you insteady of using a a 80 motor you use a 125 motor but have it de stroked or sleeved down to a 100

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what if you insteady of using a a 80 motor you use a 125 motor but have it de stroked or sleeved down to a 100

I think he wants to cut as much weight from the 125 as possible.

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