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Littlefoot

Replace Subframe?

6 posts in this topic

I want to replace my '99 WR400 steel subframe with a YZ subframe.

Are the '99 and newer YZ400/426/450 subframes aluminum?

Which years subframe from YZ's will fit the '99WR?

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The 450 subframe won't fit any of your stock plastics or seat. The '01 and up (and maybe the '00) 426 subframes are also aluminum, even though painted, and I believe they will fit. Just don't hold me to it.

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The 2000 426 also has an aluminum subframe, it's just painted. I bought an aluminum subframe when I had my 99 400 from AC Racing. It was light, but I was disappointed in the fit. I had to do a lot of filing and tweaking to get it on. Once it was on it was fine. I think they still sell them and they were less than $200.

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My 99 YZ400 subframe is unpainted aluminum. couldn't tell you if it'll fit or not, but it's definitely aluminum.

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