The frames aren't even the same design. The 9r frame runs around the sides of the engine. the 12r uses a monocoque frame that goes over the top of the engine with nothing under it or on the side of it. So you'd have to figure custom mounts that probably wouldn't be that easy and it would probably be to wide. Just get a muzzy 998 kit. heres a link
http://www.muzzys.com/ZX998/
