Opened up the first saf file I could find (open it in np++)
Instead of rmz450_fork..... rm125_swingarm... etc. Change the bike model name (e.g. rmz450 or yz250f) to the one you want. Like sxf450_swingarm... (not sure if it is sxf450 or 450sxf, just try your way). Notice that you need to change the name on all of them, for the jm files that goes along with the model. You will also need to change any png (skin, spec, norm) to the new model.
no idea why thats happening, i think frankie must of made seperate jms for this release and not aligned the forks. he should fix it but i think he will do it when he puts reflections on too.
Yea sorry added the wrong jms in, im fixing it right now