Frame help!

Does anyone know if my 2000 YZ 400F parts will bolt on to a 2004 YZ 450F frame? I need a frame and found the 450 available. Looks like it is compatible?

Thanks for any advice!

No, the 426 parts will not fit to a steel 450 frame.  The engine actually might as long as you could get the swing arm pivot to fit right, and the suspension will work if you have the 450 swing arm and linkage, but the tank, sub frame, and body parts won't.

Thank you gray racer! So will up to 2002 work?


I don't know that I'd want to replace the frame on something as rare as a 2000 YZ400F.  It will probably hurt the value.

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