yea i am not to happy about that, i just the simplicity of the bar, all you have to use is a body clip.but seeing how the chassis are pretty much the same, you can just drill a few little holes in the chassis, like the pro4s and use a pro4 battery bar. i think i might just do that and see how it works since i have a extra pro4 battery bar assembaly.
also for a FK05, it cmoes with a normal diff so you have to go out and buy a Multi diff, another $65... at least the cyclone comes with a oneway