the geometry and strength is the same, just a few little different mounting brackets for the rear brake reservoir and the relays up the front.
the 06 has the brackets, but the 04/05 dont
the 06 has the brackets, but the 04/05 dont
its a good deal for this frame i found comes with title and all 225 shipped, if i done it and did relocate my relays i would hide them up under the front behind the CDI or inside that rubber boot with the rest of the wiring..but idk what im gonna do yet still havent decidedanything's possible but are you comfortable with doing that?
you probably wouldnt have an issue if you did it properly but it would look kinda ratty[/b]