Not sure about the head fitting, but cutting your crossbars will significantly weaken the frame
Those downtubes are designed to hold the body stiff..Theres a member named 5starsky who chopped the downtubes all the way off and tywrapped an X7 bodykit on it......The frame survived but his rear swingarm didnt...........Thats what you should be the most concerned about......Not sure about the head fitting, but cutting your crossbars will significantly weaken the frame
There are none that bolt-on direct unless you pay big wood....One time I was looking into using an aluminum pitbike swingarm but I ended up strengthening mine with my welder.......What swing arm would be a good choice for this build, and if possible can someone send me a link plz.